Non-Metallic Expansion Joints

NON-METALLIC EXPANSION JOINTS AND CONNECTORSFOR PIPING AND DUCTING SYSTEMS

173 Oneida Drive, Pointe-Claire,Quebec, Canada H9R 1A9

Tel.: 514-695-8710 / Fax: 514-695-8716Toll free: 1-800-363-6613 (USA & Canada)

3rd Edition

■ High Pressure Expansion Joints■ Round and Rectangular Expansion Joints■ Special Purpose Teflon Expansion Joints■ Moulded Expansion Joints■ Elbow Connectors and Fittings■ High Temperature Expansion Joint Systems

Thorburn Flex IncFlexible Piping Specialist


Thorburn is an innovative manufacturer of specializedengineered flexible piping systems (i.e. custom hoseassemblies and expansion joints). Since 1960, Thorburn’scorporate mission evolution and business philosophyhave been customer driven and targeted to select nicheapplications where Thorburn can achieve clear positionsof sustainable technological and market-share leadership.

Thorburn’s committment to development isreinforced through the use of CAD (ComputerAided Design) system technology and finiteengineering analysis, which permits Thorburnto pinpoint potential critical areas and providetimely sound engineered solutions

Shown is Jack Thorburn, who founded thecompany in 1954, enjoying one of his passions,sailing. Unfortunately, Jack passed away onFebruary 16th 1995. He will be sorely missed.The company’s leadership passed on to Jack’seldest son, Robert, in September 1994.

DESIGNING, BUILDING AND SUPPLYINGTHE WORLD’S FINEST

EXPANSION JOINT AND CONNECTOR SYSTEMS

THORBURN’S EMPLOYMENT OFSTATE-OF-THE-ART TECHNOLOGY

FOUNDER, Jack Thorburn


THORBURN THE FLEXIBLE PIPING SPECIALIST

Page 1

Since 1960, Thorburn has devoted its expandingfacilities and engineering expertise to the design,development and manufacture of flexible pipingsystems. Integrally associated with this product mixare Thorburn’s non-metallic expansion joints andconnectors for piping and ducting systems.

EXPERIENCE YOU CAN DEPEND ON

Specify Thorburn ducting and pipingexpansion joints and connectors and put yourmind to rest.

■ Emergency shut-down products at your service

Tell us when you need the expansion joint or connector.Usually, we can supply sizes up to 36” in two days, 54” inthree days and sizes up to 72” in four days.

■ Compatible product line

Thorburn has the most complete line of expansion jointsand connectors in the industry. If we don’t have it, it’s notmade. Call Thorburn for your single source of supply.

■ Quality control

Thorburn has a rigid certified quality control system toprovide you with consistent quality products.

■ Design integrity

Thorburn’s non-metallic expansion joints are designedfor tough, demanding industrial, commercial andmunicipal applications, such as: air conditioning, heatingand ventilating systems, petrochemical, industrial processpiping systems, power generating (fossil fuel and nuclearplants), marine, pulp and paper, waste water and sewagesystems.

QUALITY CONTROL

■ CSA CAN3 Z299.1 certified

■ ISO 9001

■ Nuclear to ASME Section III NCA-4000Subsection NQA-1 CSA N285.0

■ Welders and welding procedures ASMESection IX; VIII B31.1 and B31.3

■ ASME B31.1, B31.3 Pressure pipingcertification

■ Full traceability if required

■ Size round up to 144” I.D.

Rectangular, your design limits or ourshipping door 14’ x 19’

Test programs and design verification tests

■ Expansion joint deflection test under designpressure

■ Burst and hydrostatic testing to 150,000 psi

■ Seismic and shock loading analysis

■ External pressure testing for underwaterservice

Our sincerest thanks to the many valuedcustomers who have purchased Thorburn’sflexible piping products over the years. We lookforward to working together with you andmeriting your continued support for many yearsto come.

Robert ThorburnPresident


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SUMMARY OF THORBURN'S NON-METALLICFLEX CONNECTORS AND EXPANSION JOINTS

MIGHTY-SPOOL HIGH PRESSURE PIPING EXPANSION JOINTS

SummaryThorburn's traditional work horse is the handcrafted elastomeric expansion joint system.It can be custom designed to suit specific application requirements. Available with anyknown elastomeric compound.Arch profile: High narrow arch design available with single, multiple or filled arches.End connections: Integral moulded flat-face drilled to your requirements or cuff endswith labour saving.Pressure/temperature range: Full vacuum to 300 psi / -60ºF to 400ºFSize I.D.: 1" to 144"Specials: Can be made with concentric, eccentric, special flanges, offsets, transition orfrom heavy duty externally pressurized designs.

For extra high pressure external pressurized expansion joints, see page 67

SPECIAL HAND BUILT LOW PRESSUREROUND AND RECTANGULAR EXPANSION JOINTS

Summary

Thorburn's custom designed low pressure round and rectangular elastomericexpansion joint systems.

Arch profile: No arch to extra wide multiple arches.

End connections: Integral moulded flat-face flanged drilled toyour requirements or with labour saving cuff ends.

Pressure/Temperature range:: Full vacuum to 25 psi / -60ºFto 400ºF.

Size: Round up to 144"; Rectangular up to 19' x 14'.

Specials: Can be made with concentric and eccentric, with spe-cial flanges, offsets or transition.

SPECIAL PURPOSE TEFLON EXPANSION JOINTS

Summary

Teflon is the most versatile media resistant compound known to manand Thorburn offers the industry the broadest range of teflon expansionjoints, either in moulded pure PTFE or teflon lined rubber or metal.

Arch profile: Various to suit application.

End connections: Flanged and drilled to your requirements.

Pressure/Temperature range: Full vacuum to 300 psi / -60ºF to 400ºF.

Size: 1/2" to 96" round.

FOR DETAILS SEE PAGES 13 TO 20, 67

FOR DETAILS SEE PAGES 22 TO 23

FOR DETAILS SEE PAGES 54 TO 67


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SUMMARY OF THORBURN'S NON-METALLICFLEX CONNECTORS AND EXPANSION JOINTS

MOULDED EXPANSION JOINTS FOR DETAILS SEE PAGES 34 TO 41

SummaryThorburn's moulded expansion joint series are economical joints and come in three basicstyles: 1) Extra wide arch for double the movement per arch with full faced rubber flanges;2) Spherical self-cleaning arch system with floating flanges; 3) Small diameter sphericalarch with threaded female ends. Thorburn's moulded expansion joints are made from onlylimited amounts of elastomers.Arch profile: Long flowing self-cleaning style available in single or double moulded archesor multiple handbuilt versions.End connections: Flanged and female union style.Pressure/Temperature range: 26" Hg to 300 psi / -60ºF to 300ºF.Size I.D.: 1/2" to 36" round.Special: The moulded arch design can be made in a handbuilt version.

Summary

Thorburn's rubber elbow connectors and fittings are designed toreplace metallic or rubber lined products for pipe vibration, noisereduction or lateral movement. They are available in economicalmoulded as well as handbuilt versions. Available in any size of knownelastomers.

Arch profile: No arch, smooth tube.

Pressure/Temperature range: Full vacuum to 300 psi / -60ºF to400ºF.

Size: Round up to 30".

Specials: Thorburn's custom fittings can be made with transitionjoints, lateral, crosses or with custom radius elbows.

ELBOW PUMP CONNECTORS AND FITTINGS FOR DETAILS SEE PAGES 42 TO 53

DUCTING EXPANSION JOINT SYSTEMS FOR DETAILS SEE PAGES 68 TO 84

Summary

Thorburn's Flexi-Duct Series FDR & FDC are non-metallic ducting expansionjoints custom built and designed to provide stress relief in ducting systemsby absorbing movement caused by thermal changes. They also act as vibrationisolators, shock-absorbers and compensate for minor misalignment.

Pressure: To ± 3 psi

Temperature: Model FDR: below 400ºF; Model FDC: above 400ºF

Special: Available in round or rectangular profiles


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TABLE OF CONTENTS

Introduction .................................................................... 6, 7

Pipe simulation testing ...................................................... 8

Applications

Power generating industry ............................................. 9

Marine / Commercial HVAC applications ..................... 10

Waste water sewage treatment

and drinking water treatment plant applications .......... 11

Pulp and paper making process applications .............. 12

Spool type expansion joints

Introduction ............................................................ 13, 14

Technical specifications: pressure,

temperature, materials ................................................. 15

Model 42HP: dimensional specifications ..................... 16

Model 42HP movement/force/spring

rate with single open arch design ................................ 17

Models 42HP-CR (concentric) and 42HP-ER

(eccentric) reducers specifications ........................ 18, 19

Sleeve type Model 30DB ............................................. 20

Low pressure round and rectangular expansion joints

Models 15R (no arch) and 15RA (arch type) ............... 21

Models 42HPO (offset type) and 42HPEF

(enlarged flange type) .................................................. 21

Models 15RR-LP (rectangular) and 15R-LP (round) ... 22

Boot-Flex Model TCT ................................................... 23

Technical data on flanges and control units

Common flange dimension/drilling chart,

mating pipe thickness for expansion joints,

rubber pipe, retaining rings, control units ..................... 24

Split retaining ring technology ...................................... 25

Style CR Control rod assemblies - Introduction ........... 26

Control rod assembly dimensions, ratings,

how to order ................................................................. 27

Installation and guiding practices

Guiding, anchoring, installation, maintenance .... 28 to 31

How to order custom rubber pipe expansion joints . 32, 33

Moulded expansion joints

TM20 Extra wide arch - Introduction ............................ 34

TM20 Specifications .................................................... 35

Introduction to Precision moulded Easy-Flex long

flowing spherical arch expansion joint

Series 101, 102 and 201 ........................................ 36, 37

Easy-Flex Style 101 moulded single sphere

expansion joint system ................................................. 38

Thorburn 42HP-HDX is specifically designed to provideunder seawater piping relief with external or internalpressure differentials up to 225 psi. Thorburn’s 42HP-

HDX technology was chosen for Canada’s largestoffshore oil rig project: Hibernia

Shown is a Thorburn 60” Mighty-Spool Model42HP multi-arch expansion joint system for theSte-Marthe-du-Cap-de-la-Madeleine, Quebec,

water treatment facility. This application’srequirements included absorbing ground settling

movement and piping expansion.


Page 5

Easy-Flex Style 201 moulded twin sphere

expansion joint system ................................................. 39

Optional flange drilling ................................................. 40

Easy-Flex Style 102 twin-sphere female

metal threaded union rubber connectors ..................... 41

Elbow-Flex expansion joints Series REF/REFR .... 42, 43

Elbow connectors and fittings

Flanged pump connector Model 60RPC ................ 44, 45

Ultra-quiet coupled pipe connectors ............................ 46

Paper mill suction couch Model 28TW ......................... 47

Flexipipe 60TMH and 61TMH - Introduction ................ 48

Flexipipe custom rubber hand crafted flexible pipes

and fittings from 2” to 30” I.D. ....................................... 49

Flexipipe hose ends ..................................................... 50

How to order flexipipe assemblies ............................... 51

Thorburn’s special handcrafted rubber fittings ............. 52

Fitting dimensions and ordering details ....................... 53

Special purpose teflon expansion joints

Model 42HP Spool type teflon lined exp. joints ...... 54, 55

Easy-Flex Style 101 moulded teflon lined exp. joints ... 56

Molded teflon expansion joints

Power-Flex expansion joint system .............................. 57

Power-Flex movement specifications ........................... 58

How to calculate pressure temperature relationship

for Power-Flex teflon expansion joint system ............... 59

TABLE OF CONTENTS

Shown is Thorburn self-cleaning, long flowing, singlemoulded spherical arch Series 101 expansion joint with

floating flanges

Thorburn’s lateral 60TMH-L custom rubber fitting system

Power-Flex vacuum and dimensional data .................. 60

Power-Flex typical styles and ordering information ...... 61

Tef-Flex moulded PTFE expansion joints ..................... 62

Tef-Flex movement, weight and liner length data ......... 63

Thor-Shield “safety shield” / Tef-Flex torque valves ...... 64

Hot-Flex “HF” teflon lined metal exp. joint system ........ 65

Hot-Flex construction and ordering information ........... 66

Special expansion joints

Externally pressurized rubber expansion

joint system .................................................................. 67

Non-metallic ducting expansion joint systems

Flexi-Duct Series FDR & FDC - Introduction ............... 68

Why use non-metallic Flexi-Duct .................................. 69

Applications ................................................................. 70

Elastomeric and composite ducting - Introduction ....... 71

Flexi-Duct engineering design concepts ................ 72, 73

Flexi-Duct design considerations ........................... 74, 75

Angle frame styles ................................................. 76, 77

Moulded corner type “MC” ........................................... 78

Materials, temperature limits, chemical compatibility ... 79

How to order Flexi-Duct ......................................... 80, 81

Installation instructions .......................................... 82, 83

Data required ............................................................... 84

Thermal expansion of pipe .......................................... 85

Conversion Factors ................................................... 86, 87

Warning, Warranty ........................................................... 88


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THORBURN ELASTOMERIC PIPING EXPANSIONJOINT AND CONNECTOR SYSTEM

■ Flexible piping systemThorburn’s elastomeric expansion jointand connector piping systems aresections of flexible pipe which areinserted into a rigid pipingsystem. Regardless of materialsand construction arrangements, Thor-burn’s rubber piping expansion jointsand connectors are designed to absorbvarious types of movements in aspecified pressure/temperature range.

■ Relieves piping stressThe purpose of Thorburn’s rubberpiping expansion joints is to relievestrain and stress in a piping systemcaused by thermal changes,misalignment, seismic activity,equipment vibration, load stresses,pump surges or ground settling.

Whether your piping problem ismisalignment, noise or move-ment induced, let Thorburn’s

expansion joint technology showyou the way!

THORBURN’S RUBBER EXPANSION JOINTS AND CONNECTORSQUALITY ASSURANCE CERTIFICATION AND COMPLIANCE

■ ASME B31.1 and B31.3 pressure piping registration■ Rubber Manufacturers Association IP-2■ Fluid Sealing Association (FSA), Rubber Expansion Joint Division, Technical

Handbook 5th and 6th Ed.■ CSA CAN3 Z299.1 QMI certified / N285.0 Class 6■ ISO 9001■ ASME Section III NCA-4000 Subsection NQA-1 (nuclear Class 1, 2, 3), N285.0■ Welders and Welding Procedures, ASME section IX, VIII B31.1 and B31.3

■ Shape size rangeRound 1/2” to 144” I.D. Rectangular up to 20 feet; alsoavailable custom concentric, eccentric and transition endscustom built from various elastomers and fabrics. If youhave any requirements, call Thorburn for a timely solution.

■ End connectionsFlanged (metric/imperial), CUFF (Clamp-on style) orbeaded for swivel flanged connections.

■ Expansion joint arch typesCustom handbuilt spool, double movement extra wide, longflowing spherical or no arch are custom designed byThorburn to meet specific application requirements.

TYPICAL THORBURN 42HPSPOOL TYPE ARCH DESIGN

Helical wire reinforcement Tube

Fabric reinforcementSplit retaining rings

THORBURN 60TMHAND 61TMH FLEXIBLERUBBER PIPECONNECTORS

Thorburn’s rubber pipe connectors are detailed on pages 42 to 53

Thorburn style 60TMH (wire reinforced), 61TMH (non wirereinforced) flexible rubber pipe connectors, Model 60RPCpump connectors and fittings are reinforced straight rubberpipes fabricated from various elastomers and fabrics primarilydesigned to absorb noise and vibration in a piping system.These custom connectors are also available as elbows, tees,laterals. In addition, Thorburn has the design andmanufacturing capabilities to supply custom moulded branchand transition assemblies end. End connections’ types are thesame as for rubber expansion joints.

CarcassFabric

Reinforcing

CushionRubber

RubberCover

RubberTube

Metal Wire

CROSSSECTION


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THORBURN RUBBER EXPANSION JOINT SYSTEMMEANS QUALITY PROTECTION EVERY TIME

THORBURN RUBBER EXPANSIONJOINT’S DISTINCTIVE ADVANTAGES

■ Compact to simplify installation■ Absorbs movement in all directions■ Reduces mechanical noises■ Compensates for misalignment■ Eliminates electrolysis between

dissimilar metals■ Relieves strain in the piping system■ Doesn’t require gaskets

Thorburn’s rubber pipe expansion joints absorband isolate movement better. Here is why:

■ High resistance to shockUnlike a metal joint, Thorburn rubber expansion joints absorb movementsin all directions without stress and are capable of preventing unexpectedshock induced movements caused by pumps, blowers and other agitatingequipment, particularly during plant start-ups or shutdowns.

■ Vibration and sound absorptionThorburn’s elastomeric joints offer significant advantages over a metallic joint, preventing transmission of vibration without harmingthe joint.

■ Freedom from embrittlementFailure of a metal expansion joint is due primarily to continuous flexing and built-up stress points resulting in a fracture at the pointof embrittlement . Constant/intermittent flexing keeps the rubber “alive” and eliminates flex cracking in Thorburn’s rubber expansionjoints.

■ Great recovery from movementWhen a metal joint is fully compressed, it assumes a permanent set. Thorburn’s rubber expansion joint continues to return to itsoriginal position.

■ Freedom from corrosionTo achieve comparable corrosion resistancy metal bellows would have to employ exotic alloys at a tremendous cost. In addition,Thorburn’s rubber expansion joints in sea water will not corrode nor does the continuous flexing permit scale to form.

■ Superior abrasive and erosion resistanceThin metallic bellows will typically wear out at the root over time with minimum abrasion, where as a rubber joint can be manufacturedwith a smooth abrasion resistant lining to protect it from the harmful effects of sea water salt, slurry and other abrasive media.

Thorburn’s rubber expansion joint’s compactdesign simplifies installation

Typical hand built Thorburnrubber expansion joint

Typical metallic bellowsexpansion joint

Thorburn rubber expansion joints are custom designed by engineersand fabricated by skilled craftsmen following rigid step-by-stepquality control standards. Thorburn’s rubber expansion joints are usedto address and solve defined pipe motion problems. If you have aspecific requirement or want to reduce maintenance cost in yourpiping system, specify the right product the first time by callingThorburn’s flexible piping specialist team today.


Page 8

Shown is Thorburn’s 42HP spool type arch profile subjected topressurized compression movement

Shown is an arch profile of Thorburn’s 42HP subjected to lateralmovement under positive or negative pressure

FIRST IN RUBBER EXPANSION JOINT PIPESIMULATION TESTING

Thorburn is the only manufacturer capable of testing large diameter rubber expansion joints up to120” I.D. under actual design pressure or vacuum conditions, while simulating any design movement orseries of movements experienced in a piping system during operation (i.e. design axial compression,extension and/or lateral deflection movements).

Shown is Thorburn’s 42HP expansion joint subjected to apressurized axial extension movement

Exclusive Thorburn technologyThorburn’s pipe simulator allows rubber expansion joints to besubjected to actual field conditions before being put into service.Therefore, it provides the means to truly verify expansion jointperformance and design capabilities as well as detect any defectiveor faulty expansion joints before commissioning them into service.

Typical applications for pipe simulator■ Superior verification testing

Engineers and designers preferring to increase the quality ofits piping system can specify Thorburn pipe simulation testingto verify the expansion joint design and performancecapabilities before putting new expansion joints into service.

■ Power generating industry preventive maintenancetesting

The quality standards required by both fossil fuel and nuclearelectrical power generating industries can benefit by periodicalpipe simulation testing of its existing expansion joints to verifythe quality and uncover any potential weakness that couldlead to a dangerous and costly failure.

Increases quality and reduces costsThorburn’s pipe simulator has dramatically increased the safetyand quality standards of rubber expansion joints while reducingcostly and dangerous failures from occurring during commissioningor during actual service.


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POWER GENERATING INDUSTRY

Thorburn has extensive successful experience in designing, manufacturing and supplying high pressure elastomeric expan-sion joints up to 108” (274 cm) I.D. to the world’s fossil fuel and nuclear power electrical generating stations.

Typical Thorburn expansion jointbeing installed at electricalgenerator station

TYPICAL THORBURN RUBBEREXPANSION JOINT APPLICATIONSFOUND IN POWER GENERATINGSTATIONS

■ Condenser circulating watersystem pump inlet and outlet

■ Raw service water pump inlet andoutlet

■ Raw service water system heatexchanger inlet and outlet

■ Raw service water strainer outlet

■ Raw service water discharge lineto the header

Thorburn’s packaging professionalsmeticulously preparing a 108” I.D.Thorburn 42HP joint for shipment

N.B. Power engineer inspecting a 24” I.D. Thorburn 42HPexpansion joint at the Belledune generating station unit 2

Power industry expansion joints routing and locationThorburn’s expansion joints were chosen for the AECL designed Candu KoreanWolsong 2, 3, 4 nuclear power generating stations

Thorburn’s pipe simulator specialists pressure/vacuum testingThorburn style 42HP rubber expansion joints under full designdynamic movement conditions

FuelLoadingMachine Reactor

REACTOR BUILDING

Steam

TURBINE BUILDING

Turbine Generator

CirculatingWater


Page 10

■ High rise office towers

■ Air ducts ■ Compressor lines ■ Circulating water lines ■ Pump suction and discharge ■ Turbine to condenser ■ Refrigeration

Typical Thorburn rubber expansion jointlocation and routing

■ Apartment buildings

Typical commercial and institutionalbuilding installations for Thorburn rubber

expansion joints

■ Hospitals

MARINE APPLICATIONS

Thorburn rubber expansion joints provide an economical solution in the isolation of noise transmission,vibration and connecting misaligned pipe found in offshore platforms and large marine vessels.

Thorburn rubber expansion joints were chosen forCanada’s and one of the world’s largest off shore oil

drilling platform. The Hibernia Project is situated in theAtlantic Ocean off the coast of Newfoundland, Canada.

Thorburn’s marine vessel rubber expansion joints routing andlocation

■ Schools ■ Stores ■ Hotels

Thorburn rubber expansion joints werechosen to provide stress and noise relief forthe Canada Post headquarters building’s

piping system in Ottawa, Ontario, Canada

OFFSHORE APPLICATIONS

■ Mud pump-lines

■ Diesel fuel lines

■ Fresh water and sea water lines

■ Permanent ballast water secondarycontainment piping system

COMMERCIAL AND INSTITUTIONAL BUILDINGSAIR CONDITIONING, HEATING, VENTILATION SYSTEMS

TYPICAL MARINE INSTALLATIONS

■ Air intake on diesel engines

■ Ballast

■ Between scoop and the condensers

■ Circulating lines to the condenser

■ Fog foam lines

■ Fire and bilge pump lines

■ Forced draft lines

■ Overboard discharge

■ Sanitation system

■ Ventilation lines


Page 11

WASTE WATER SEWAGE TREATMENTDRINKING WATER TREATMENT PLANTS

Thorburn’s rubber expansion joints were chosen for the multi-million dollar “Ville de Québec” water filtration project

Consultants specify Thorburn rubber expansion jointsand fittings to maximize design flexibility

■ Aeration lines

■ Raw sewage lines

■ Grit pump lines

■ Sludge pumps

■ Sinter sludge ash lines

Installing a typical rubber expansionjoint in a waste water sewage

treatment plant Typical waste water treatment plant

1 Aeration basin floating cover: connections are served with Thorburn’s 60TMHassemblies to provide the required flexibility to cover the changing level withvariations in sewage flow.

2 Air blowers: make extensive noise and the discharge is very hot. Thorburn hightemperature (chlorobutyl) model TM20 joint can reduce noise by over 20 decibels.The air blower inlet side is connected with a Thorburn 30DB clamp-on typeexpansion joint to isolate vibration and pipe movement.

3 Sludge pump lines are ideally suited for Thorburn long flowing arch style 202expansion joints. These expansion joints relieve stress from ground settlement orpipe and pump vibration misalignment.

4 Thorburn 60TMH-E elbow fittings have proven even to outwear stainless steelelbows. Therefore, maintenance is greatly reduced for example on extremelyabrasive slurry lines, such as sinter sludge ash.

5 Thorburn 60TMH custom assemblies provide the required flexibility and designto dump sludge from plant to truck and loading docks or barge.


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PULP AND PAPER MAKING PROCESS

■ Black liquor lines

■ Suction box

■ Causticizer and digester piping

■ White water piping

■ Process piping systems

■ Slurry lines

■ Heating and cooling systems

■ Pump inlet and discharge lines

Applications for Thorburn rubber expansion joints andcustom connectors

Schematic view of pulp & paper processing.

Case study: When BowaterMersey Paper Co. had aproblem with expansion jointslocated on their white waterpiping system, Thorburnprovided the solution with its42HP Series teflon linedrubber expansion joint system.Problem solved!

Thorburn’s flexible rubber piping and fitting technology wasused to upgrade the traditional open trough piping found

between the caustizer and slacker tank at Miramichi Pulp andPaper in New Castle, N.B.

Calender

Greenliquorstorage

Slakingtank Lime

Kiln

FilterLimesludge

Greenliquor

mixing tank

Wastetreatment plant

CALENDERS

WinderSlitter

Size press

DRYERS

Feltblankets

PRESSES

Flowbox

Dandyroll

SuctionboxesSuction roll

FOURDRINIER

JordanRefiner

Beater

SaveallBleachedpulpstorage

Mixing box

Pulp washers

Unbleachedpulpstorage

Bleaching

BleachingBleaching

Slice

Wood source Pulpwoodstacker Barking drum Water purification

WasherChipper Chip

storage binChip

conveyors Digestor Blowtank Slaked

limestorage

Cookingliquor

EvaporatorBlackliquor

Brownstock

Steam andpower plant

Screens

Power supply


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MIGHTY-SPOOLHIGH QUALITY SPOOL JOINT SYSTEM

35LP LOW PRESSURE • 50SP MEDIUM PRESSURE • 42HP HIGH PRESSURE • 42HPX EXTRA HIGH PRESSURE

Mighty-Spool Hand Crafted QualityThorburn’s Mighty-Spool expansion joints are the work horses of our rubber expansionjoint line meeting or exceeding the design requirements listed in the FSA type A.1, A.2 andA.3 spool arch type joints. Thorburn does not employ marginal practices or materials,which reduce safety factors. All Thorburn Mighty-Spool joints meet a minimum 4 to 1safety factor at rated operating temperatures and pressures. Thorburn’s standard Model42HP High Pressure represents 65% of our sales.

To order Mighty-Spool expansion joints,please see pages 32 and 33 for details.

Thorburn Mighty-Spool expansion joints areavailable in sizes from 1” to 144” I.D.

Fig. 2: Mighty-Spool multiple open arch designFig. 1: Mighty-Spool singleopen arch design

Spool type expansion joint with filled and open archdesign with a flange by sleeve type connecting end

Mighty-Spool Filled Arch SystemThorburn Mighty-Spool open arch design may be modified to reducepossible turbulence, prevent the collection of solids in the arch way, whichcould obstruct the joint movement. To solve such problems, Thorburn’sMighty-Spool joints may be supplied with a bonded-in place soft filler rubberin the arch, providing a smooth interior bore. It should be noted that filledarches reduce movement capability to half (50%) and increase the spring rateby 4 times of the normal movements and spring rates of comparable size,Mighty-Spool open arch expansion joints. This general rule is similar for allThorburn rubber expansion joints with filled arches.

Mighty-Spool Light-WeightModel 35LP and Multiple ArchExpansion JointThorburn Mighty-Spool single andmultiple arch types are available inlight-weight series Model 35LP. Di-mensionally the same as the standardproduct, except for reduced body thick-ness, this series is designed for verylow pressure and vacuum applications.Mighty-Spool multiple arch expansionjoints are composites of the single archdesign and are capable of movementsof a single arch multiplied by thenumber of arches. The spring rate for a multi-arch type expansion joint is equal to the spring rate for a single arch design divided by thenumber of arches. This general rule is similar for all Thorburn rubber expansion joints.In order to maintain lateral stability and prevent sagging when the joint is installed in a horizontal position, a maximum number of archessupplied is 4.Special note: Thorburn can provide special designs to accommodate movements of30” (600 mm). If greater movement or special ends are required in your piping system,call Thorburn flexible piping specialists today for an economical and timely solution.

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Page 14

MIGHTY-SPOOLBUILT-IN QUALITY PIPE JOINTS

Thorburn Mighty-Spool single open arch design being prepared forhydrostatic pressure testing

Typical Mighty-Spool cross-section expansion joint with integral flanges

Thorburn’s rubber expansion jointconstruction featuresThough Thorburn manufactures and supplies a widevariety of expansion joints, all our rubber joints have4 basic components: tube, reinforcement, cover andend connections. Shown to the right is Thorburn Mighty-Spool high pressure joint with integral flange.

Thorburn 108” Model42HPCover placementduring expansion jointrubber moulding andcarcass building stages

STYLE 42HP

Inner liner

High profile archMetallic

reinforcement

Gap filler hard rubber

Integral flange

Protective cover

Carcass

Tube:Seamless elastomeric leak proof lining specificallydesigned to maintain fluid leak tight integrity of theexpansion joint and protect the carcass from penetrationor saturation of the media being transferred. Thorburn’sexpansion joint tubes can be designed to transfer chemicaland petroleum products, sewage, gases as well as abrasivemedia.Reinforcement:a) Fabric Reinforcement: The fabric reinforcement is the flexible and supporting member between the tube and cover. Fabrics of

high strength synthetic fibres are used depending on pressure and temperature requirements. All fabric plies are calendered topermit flexibility between the fabric plies and to reduce service strain.

b) Metallic Reinforcement: Consists of coated high tensile spring steel wire and/or solid steel rings embedded in the carcass. Thepurpose of the metallic reinforcements is to strenghten the joint permitting the rated working pressures and to supply the joint withthe necessary rigidity for thermal vacuum service. Specially compounded filler rubbers are used between the layers of metallicreinforcement to prevent migration when pressurized. Special metallic reinforcement is used when Thorburn rubber expansionjoints are used for external service.

Cover:The primary function of the cover is to protect the carcass from outside damage or abuse. Special elastomers can be supplied to resistchemicals, oils, sunlight, acid fumes, ozone, sea water, etc.

End connections:Integral flanges are constructed of fabric reinforcement, smooth finish, full-faced flange that form a tight seal against the mating pipeflanges without the need of gaskets. Also available are soft cuff clamp-on ends designed to fit over a pipe and be clamped on.


Page 15

TECHNICAL SPECIFICATIONSTHORBURN RUBBER PIPE EXPANSION JOINT AND PIPE CONNECTORS

Mechanical Vibration in a Steel Piping System Reduced with theInstallation of Thorburn’s Pipe Connectors or Expansion Joints

Installation in Pipe with a:Expansion Joint Rubber Pipe8” ID x 6” F/F 8” ID x 24” F/F

Vibration reduction at Vibration reduction atHZ 10 PSIG 50 PSIG 80 PSIG 10 PSIG 50 PSIG 80 PSIG40 37% 55% 72% 87% 91% 93%68 60% 68% 78% 95% 96% 99%125 44% 50% 60% 98% 99% 99%250 44% 50% 50% 96% 97% 99%500 65% 89% 90% 91% 93% 94%

1000 90% 96% 98% 82% 91% 96%2000 94% 95% 96% 99% 99% 99%4000 90% 93% 97% 99% 99% 99%8000 89% 89% 94% 97% 97% 98%

Example: If an 8” steel piping system had a major vibration frequency of 1000 HZ at 50 PSIG,the installation of an expansion joint into the system, the percentage of reduction of vibrationwould be 96%.

Design of Expansion Joint ConstructionModel 35LP Model 50SP Model 42HP Model 42HPX

Low Pressure Medium Pressure High Pressure Extra HighDesign Design Design Pressure Design

FSA Series A FSA Series B FSA Series CPositive Negative Positive Negative Positive Negative Positive Negative

Inches PSIG in. of hg. PSIG in. of hg. PSIG in. of hg. PSIG in. of hg.1/4 to 4 165 26 165 30 200 30 300 305 to 12 140 26 140 30 190 30 275 3014 85 15 65 30 130 30 225 3016 to 20 65 15 50 30 110 30 200 3022 to 24 65 15 45 30 100 30 175 3026 to 40 55 15 45 30 90 30 150 3042 to 66 55 15 40 30 80 30 150 3068 to 96 45 15 40 30 70 30 125 3098 to 108 40 15 40 30 60 30 90 30110 to 144 30 15 40 30 50 30 80 30

NominalPipe Size

I.D. ofExp.Joint

Pressure Characteristics of ThorburnMighty-Spool Expansion Joints

Notes:

1) Pressure limitations are based on a minimum 4 to 1 safetyfactor at 180ºF (82ºC) for rated pressure.

2) For higher pressure and/or temperature expansion joint,contact Thorburn flexible piping specialists for details.

3) Always advise Thorburn if expansion joint will be sub-jected to full vacuum.

4) Model 42HP also available for external deep sea waterservice. Please specify Thorburn Model 42HPX-HD andprovide all related service and design requirements.

Tolerances for Thorburn Rubber Pipe & Expansion JointsNon-

Exp. criticaljoint flange BoltI.D.1 O.D.1 line3 0 to 6 7 to 12 14 to 18 20 & up

0 to 10 ±3/16 ±1/4 ±3/16 ±1/8 +1/8 ±3/16 +3/16 4-3/16 -1/4

12 to 22 ±1/4 ±3/8 ±1/4 ±1/8 +1/8 ±3/16 +3/16 4-3/16 -1/4

24 to 46 ±3/8 ±1/2 ±5/16 +1/8 ±3/16 +3/16 ±1/4 4-3/16 -1/4

48 to 70 +3/8 +3/4 ±3/8 ±3/16 +3/16 ±1/4 +1/4 5-1/2 -1/2 -1/4 -5/16

72 & up +3/8 +1 ±1/2 +3/16 ±1/4 +1/4 +1/4 6-5/8 -3/4 -1/4 -5/16 -3/8

Face to face length “F”2 (inches)All dimensions to be an average reading.

Applies to open or filled arch.

# ofMeasure-ments to

beAveraged

1) All diameters to be measured with a “Pi” tape.2) All linear dimensions to be measured with a steel rule and averaged.3) Bolt line = Actual I.D. + 2 (Average “X” Dimension) + Bolt hole diameter

NominalPipe Size

I.D. ofExp.Joint

Sound Acousticalvelocity Density impendance Relative

Material (in./sec.) (lbs./in.3) (lbs./in.2-sec.) Impendance

Steel 206,500 0.283 58,400 500.0Copper 140,400 0.320 45,000 425.0

Cast iron 148,800 0.260 38,700 365.0Lead 49,800 0.411 20,400 190.0Glass 216,000 0.094 20,300 190.0

Concrete 198,000 0.072 14,200 134.0Water 56,400 0.036 2,030 19.0Pine 132,000 0.0145 1,910 18.0Cork 19200 0.0086 165 1.6

Rubber 2,400 0.0442 106 1.0

Acoustical impedance is defined as the product of material density times velocity ofsound in that material. In acoustical systems low impedance corresponds to low soundtransmission. Relative impedance is based on Rubber = 1.0

Rubber Acoustical Impedance Compared

Maximum Service Temperature of Materials forThorburn’s Expansion Joints and Pipe ConnectorsStardard Class I - Recommended up to 180ºFStandard Class II - Recommended up to 230ºFSpecial Class II - Recommended for over 230ºF

Type of elastomer Class Type of fabric ClassGum rubber Std. I Cotton Std. INatural rubber Std. I Rayon Std. ISBR/GRS/Buna-S Std. I Nylon Std. IINeoprene Std. II Polyester Spc. IIBuna-N/Nitrile Std. II Fiberglass/Asbestos Spc. IIHypalon Std. II Asbestos Spc. IIButyl Std. II Fiberglass Spc. IIButyl, Chloro Spc. II Kevlar Spc. IIEPDM Spc. II Nomex Spc. IIViton/Fluorel Spc. IISilicone Spc. IITeflon/TFE/FEP Spc. II

PipeSystem

VibrationFrequency


Page 16

MIGHTY SPOOL MODEL 42HPQUALITY PROTECTING EXPANSION JOINTS

Note: Flange and retaining ring dimensions shown are in accordance with 125/150 pound standard drilling of: ANSI B16.1, B16.24, B16.51, MSS SP-44. Items marked with * are drilled to AWWAC207-78 Table 1 Class D, Table 3, Class E. Retaining plate thickness “G” is 3/8” for all sizes.

For larger diameters, offsize diameters, special drilling, special lengths, greater movements, reducers transition connectors or other specials, callThorburn’s flexible piping team today at 1-800-363-6613.

11 1/41 1/2

22 1/2

34568

1012141618202224262830323436404248505456606672788496108144

NominalPipe Size

Exp. Jt. I.D.

Sing

leA

rch

Two

Arc

h

Thr

eeA

rch

Four

Arc

h

Ret

aini

ngR

ing

I.D.

Flan

geO

.D.

Bol

tC

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e

No.

of

Hol

es

Dia

met

erof

Hol

es

“A”

“B”

“C”

“E”

“D”

6666666666888888

10101010101010101012121212121212121212121212

1212121212121212121414141616161618181818181818181818181818181818181818182020

1414141414141414161616162020202022222222222222222224242424242424242424242424

4 1/44 5/8

567

7 1/29

1011

13 1/2161921

23 1/225

27 1/229 1/2

3234 1/436 1/238 3/441 3/443 3/4

4650 3/4

5359 1/261 3/466 1/468 3/4

7380

86 1/293

99 3/4113 1/4126 3/4167 1/4

3 1/83 1/23 7/84 3/45 1/2

67 1/28 1/29 1/2

11 3/414 1/4

1718 3/421 1/422 3/4

2527 1/429 1/231 3/4

3436

38 1/240 1/242 3/447 1/449 1/2

5658 1/462 3/4

6569 1/4

7682 1/2

8995 1/2108 1/2120 3/4158 1/4

444444888812121216162020202428282832323636444444485252606464687284

5/85/85/83/43/43/43/47/87/87/811

1 1/81 1/81 1/41 1/41 3/81 3/81 3/81 3/81 3/81 5/81 5/81 5/81 5/81 5/81 5/81 7/81 7/81 7/81 7/81 7/81 7/82 1/82 1/82 3/82 5/83 3/8

9/169/169/169/169/169/169/169/165/83/43/43/47/87/87/8111111111

1 3/161 3/161 3/161 3/161 3/161 3/161 3/161 3/161 3/161 1/41 1/41 1/41 1/41 3/8

1/21/25/83/47/87/87/87/87/87/81

1 3/161 3/161 3/161 3/161 1/41 1/41 1/41 3/81 3/81 3/81 3/81 3/81 3/81 3/81 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 5/81 5/81 5/81 5/81 3/4

1 1/81 1/81 1/81 1/41 1/41 1/41 1/41 1/41 1/41 1/21 1/2 1 1/2

222222

2 1/42 1/42 1/42 1/42 1/42 1/42 1/42 1/22 1/22 1/22 1/22 1/22 1/22 1/22 1/22 1/22 1/22 1/22 1/22 1/2

1/21/21/21/21/21/21/21/21/23/43/43/43/43/43/47/87/87/81111111

1 1/81 1/81 1/81 1/81 1/81 1/81 1/81 1/81 1/81 1/81 1/81 1/81 1/8

7/167/167/161/21/21/21/21/21/25/8

11/1611/163/43/43/4

25/3225/3225/321 3/161 3/161 3/161 3/161 3/161 3/161 3/1629/3229/3229/3229/3229/3229/3229/3229/32

1111

1 1/8

2 3/82 5/82 7/83 5/84 1/84 5/85 7/86 7/87 7/89 7/8

12 1/814 1/216 1/218 1/220 1/222 5/824 5/826 5/828 7/830 7/832 7/834 7/8

373943

45 1/451 1/453 1/457 1/459 1/463 1/469 1/475 1/481 1/487 1/299 3/8112 1/2149 1/2

“Face to Face” MinimumRecommended Length

1010101010101010101012121212121214141414141414141414141414141414141616161616

Typical Mighty-SpoolBody Dimensions

Standard Flange Dimensionsand Drilling

Expansion Joint

Flange

Typical 42HP

Single open archRetaining

RingTypical 42HP

Single filled archTypical 42HP

Two open archesTypical 42HP

Three open arches

For pressure temperature and other specifications, please see page 15

FOR ORDERING DETAILS SEE PAGES 32 AND 33


Page 17

MIGHTY-SPOOL MODEL 42HPMOVEMENT/FORCE/SPRING RATE WITH SINGLE OPEN ARCH DESIGN

11 1/41 1/2

22 1/2

34568

1012141618202224262830323436404248505456606672788496

108144

“Fac

e to

face

”m

inim

um le

ngth

Inch

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f axi

alco

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on

Inch

es o

f axi

alex

tens

ion

Inch

es o

f lat

-er

al d

efle

ctio

n

Deg

rees

of

angu

lar

mov

emen

t

Spring RateForce Pounds

Tota

l loa

d lb

sfo

r rat

edco

mpr

essi

onTo

tal l

oad

lbs

for r

ated

exte

nsio

nTo

tal l

oad

lbs

for r

ated

late

ral d

efl.

Tota

l loa

d fo

otlb

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ove.

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for

1” c

om-

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e po

unds

for

1” e

xten

-si

on m

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for 1

” la

tera

lde

flect

ion

Est. Wt (lbs)

Join

tsi

ngle

arc

h

Ret

aini

ngri

ng se

t

Non-ConcurrentMovement Capability

Special notes on movement capability: 1) Filled arch construction reduces above movements by 50%. 2) To calculate movement of multiple arch type for compression extension and lateralmovements, take movement shown in the above table and multiply by the number of arches. 3) The degree of angular movement is based on the maximum extension shown. 4) Movement capabilityshown is non-concurrent percentage used in one movement position must be deducted from the other movement position so that sum of movements don’t exceed 100%. 5) Movements shown arebased on proper installation practices. See Thorburn installation maintenance guide for details.Special notes on force Pounds / Spring Rates: 1) Forces required to move Thorburn Mighty-Spool Model 42HP are based on zero pressure conditions and room temperature in the pipeline. 2)These forces should be considered only as approximates, compensation must be made for more accurate forces based on materials of construction and actual service conditions. 3) Filled arch springrates are approximately 4 times that of a single open arch. 4) Multi-arch spring rates are equal to single arch divided by number of arches.

AxialCompression

AxialElongation

Angular MovementBending of the centerline

Torsional MovementRelation about thecenterline (twist)

Lateral MovementShear or perpendicular

to centerline

AbsorbingVibration

Typical Thorburn Rubber Expansion Joints

6666666666888888

10101010101010101012121212121212121212121212

1/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/2

27.522.518.514.511.510.07.56.05.05.54.5

3.753.252.752.52.5

2.252.02.32.02.01.8

1.751.51.51.5

1.251.251.251.251.01.00.90.90.80.7

0.620.47

7/167/167/167/167/167/167/167/167/1611/1611/1611/1611/1611/1613/1613/1613/1615/1615/1615/1615/1615/1615/1615/161 1/161 1/161 1/161 1/161 1/161 1/161 1/161 1/161 1/161 1/161 1/161 1/161 1/161 1/16

1/41/41/41/41/41/41/41/41/43/83/83/83/83/87/167/167/161/21/21/21/21/21/21/29/169/169/169/169/169/169/169/169/169/169/169/169/169/16

103129154185232278371463556971

1214145612741456163821522367258228693090331135313752397344144732540856346085631067617437811387899465108171216916218

7696115138172207276344413689861

1033904

103311631505165618071990214322972450260327563062325337173872418243414651511655816046651174418372

11152

175219262350381412476546617753809948

111712861420158816481706182919522075243828013164333834233866401243034448473651085477595164257375832511013

12346814223270

109158160209266381463549659765875

1000113012661563174522822460288530813537428851136022691394091355020164

235294353423530635848

1058127114121766211818532118238226492913317830603296353237694002423847084452508753005724593663606996763282688904

101761144815264

304383459552689828

1104137616521837229627552411275531013440378541303980428645944899560255126124578366086884743577178268909599221074811575132281488319843

350438524700762824952

109212341506161818962234257228403176329634123658390441504876560263286676684677328024860688969472

10216109541190212850147501665022026

22.534

4.55.589

11152334404756677079100102117127138143173193198211265288309350385410435485650850

2.32.534

5.56

7.589121822252729354448535866758891

106116138154163184200246300325350432540700

NominalPipe Size

Exp. Jt. I.D.

For pressure temperature and other specifications, please see page 15

FOR ORDERING DETAILS SEE PAGES 32 AND 33


Page 18

MIGHTY-SPOOLMODELS 42HP-CR AND 42HP-ER CONCENTRIC AND

ECCENTRIC REDUCER EXPANSION JOINTS

Thorburn’s Mighty-Spool concentric and eccentric reducers were specifically developed to connectpiping of unequalled diameters. These reducers were designed to replace and address the limitationsfound in metal reducers in a pipeline.

Compare the Mighty-Spool advantagesover metallic reducers:

■ Absorbs pipe-wall and fluid-born noiseThorburn’s reducers are quiet operating andare designed to replace sound transmittingmetal reducers. Pipe-wall sound loses energyand is absorbed as the noise carried by thepiping both enters and leaves the rubber section.Fluid-born noise is absorbed by volumetricexpansion (breathing) of Thorburn’s Mighty-Spool reducer. This action cushions waterhammer and smooths out pumping impulses.

■ Reduces system stress and strain /Compensates for misalignmentRigid attachment of piping to critical ormechanical equipment can produce excessiveloading. Thermal or mechanically createdstrain-stress-shock are cushioned and absorbedwith Thorburn’s Mighty-Spool reducers.Thorburn’s reducers add a flexible componentthat is automatically self correcting formisalignment created by structural movementscaused by settling, expansion or ground shifts.

■ Less space, lower installation costThorburn’s Mighty-Spool reducers replace ametal reducer and a flexible element. Thus,less space is required and installation issimplified.

Thorburn 42HP-CR Concen-tric reducer expansion joint

Thorburn 42HP-ER Eccentricreducer expansion joint

Thorburn Model 42HP-ER eccentric reducer rubber expansion joint

Thorburn Model 42HP-CR concentric reducer rubber expansionjoint

Con

trol

Rod

Bol

t Circ

le

Fla

nge/

Ret

aini

ng R

ing

O.D

.

Bol

t Circ

le

Nom

inal

Pip

e S

ize

Join

t I.D

.

ControlRodPlate Retaining

Ring

SteelWasher

StandardPipe

Flange

OptionalCompression Sleeve

Con

trol

Rod

Bol

t Circ

le

Fla

nge/

Ret

aini

ng R

ing

O.D

.

Bol

t Circ

le

Nom

inal

Pip

e S

ize

Join

t I.D

.


Ring

SteelWasher

StandardPipe

Flange



Page 19

MIGHTY-SPOOL EXPANSION JOINTSMODEL 42HP-CR CONCENTRIC AND

MODEL 42HP-ER ECCENTRIC REDUCERS SPECIFICATIONS

5.5 - 6.255.5 - 6.255.5 - 6.255.5 - 6.255.5 - 6.255.5 - 6.255.5 - 6.255.5 - 6.256.5 - 7.255.5 - 6.256.5 - 7.255.5 - 6.256.5 - 7.255.5 - 6.255.5 - 6.257.5 - 8.257.5 - 8.255.5 - 6.255.5 - 6.258.5 - 9.255.5 - 6.257.5 - 8.258.5 - 9.255.5 - 6.258.5 - 9.25

5.25 - 6.3755.25 - 6.3757.25 - 8.375

10.25 - 11.3755.25 - 6.375

10.25 - 11.3755.25 - 6.3757.25 - 8.375

10.25 - 11.3757.25 - 8.3757.25 - 8.375

11.25 - 12.3755.25 - 6.3757.25 - 8.375

11.25 - 12.3757.25 - 8.375

13.25 - 14.3755.25 - 6.3757.25 - 8.375

13.25 - 14.3757.25 - 8.375

13.25 - 14.3757.25 - 8.3757.25 - 8.3757.25 - 8.3757.25 - 8.3757.25 - 8.3757.25 - 8.3757.25 - 8.3757.25 - 8.3757.25 - 8.375

2 x 1 x 62 x 1.5 x 6

2.5 x 1.5 x 62.5 x 2 x 63 x 1.5 x 63 x 2 x 6

3 x 2.5 x 64 x 2 x 64 x 2 x 7

4 x 2.5 x 64 x 2.5 x 74 x 3 x 64 x 3 x 75 x 3 x 65 x 4 x 65 x 4 x 86 x 2 x 8

6 x 2.5 x 66 x 3 x 66 x 3 x 96 x 4 x 66 x 4 x 86 x 4 x 96 x 5 x 66 x 5 x 98 x 3 x 68 x 4 x 68 x 4 x 8

8 x 4 x 118 x 5 x 6

8 x 5 x 118 x 6 x 68 x 6 x 8

8 x 6 x 1110 x 5 x 810 x 6 x 810 x 6 x 1210 x 8 x 610 x 8 x 810 x 8 x 1212 x 6 x 812 x 6 x 1412 x 8 x 612 x 8 x 812 x 8 x 1412 x 10 x 8

12 x 10 x 1414 x 8 x 814 x 10 x 814 x 12 x 816 x 10 x 816 x 12 x 816 x 14 x 818 x 12 x 818 x 14 x 818 x 16 x 8

ThrustFactor

Axi

alex

tend

(inch

es)

Lat

eral

defle

ct(in

ches

)

Tota

l tra

vel

com

pres

s –E

xten

d(in

ches

)

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75.75

Axi

alco

mpr

ess

(inch

es)

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25

.25.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375.375

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

18.415.914.112.512.511.310.39.59.58.88.88.28.27.16.46.47.16.76.46.45.75.75.75.25.27.87.17.17.16.66.66.16.16.15.75.35.34.84.84.84.84.84.34.34.33.93.93.93.63.33.33.12.92.92.72.6

Deg

rees

tors

ion

33333333333333333333333333333333333333333333333222222111

12.6914.3216.0417.8717.8719.7921.6

23.9223.9226.1526.1528.4628.4633.3838.7038.7033.3835.9938.7038.7044.4144.4144.4150.5150.5156.6463.4963.4963.4970.7670.7678.4278.4278.4286.4694.9094.90112.95112.95112.95113.10113.10132.57132.57132.57153.76153.76177.09201.46277.40227.40254.91283.99283.99314.65346.88

3.143.144.974.977.067.067.0612.5712.5712.5712.5712.5712.5719.6319.6319.6328.2728.2728.2728.2728.2728.2728.2728.2728.2750.2750.2750.2750.2750.2750.2750.2750.2750.2778.5478.5478.5478.5478.5478.54

113.10113.10113.10113.10113.10113.10113.10153.94153.94153.94201.06201.06201.06254.47254.47254.47

Ope

n ar

chjo

int/r

ings

Con

trol

rod

asse

mbl

y

Weight(pounds) Pressure

Posit

ive

P.S.

I.G

.

Neg

ativ

ein

. of h

g

5.15.57.18.18.28.39.5

10.810.910.911.812.012.913.414.416.913.613.815.616.615.917.819.317.118.620.522.923.223.821.426.123.025.628.129.429.033.429.934.640.138.845.037.642.048.647.860.045.853.563.655.861.869.665.567.478.7

6.06.37.17.47.17.07.17.17.17.67.67.57.511.510.110.111.611.912.312.510.611.011.010.511.920.418.619.521.018.420.617.518.119.627.026.027.524.525.327.829.030.528.028.830.124.326.129.029.426.635.836.036.537.037.033.8

200200200200200200200200200200200200200190190190190190190190190190190190190190190190190190190190190190190190190190190190190190190190190190190130130130110110110110110110

2626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626

Ope

n ar

ch

Fille

d ar

ch

Movement Capability

Notes: 1) See Mighty-Spool single open arch for clarification or specifications. 2) To determine end-thrust: Multiply thrust factor by operating pressure of system. 3) The degree of taper shouldnot exceed 25º. 4) Where a taper is more than 15º, a filled arch is recommended. 5) Where a proposed taper is greater than 25º, Thorburn recommends a steel reducer be used and a Thorburn Mighty-Spool type expansion joint be used in the adjacent piping. 6) Multiarch design will increase movement as shown, times number of arches. 7) Higher pressure available upon request.

For additional specifications, see page 15. For sizes not shown, increased movement, higher pressure temperatures, call 1-800-363-6613 and askto speak to a Thorburn flexible piping specialist with your requirements. To order Thorburn concentric/eccentric reducer expansionjoints, see pages 32 and 33 for details.

Ang

ular

defle

ct(d

egre

e)

TypicalJoint size

I.D.1 x I.D.2x length

42HP-CR42HP-ER

ALSO AVAILABLE IN EXTRA HIGH PRESSURE MODELS42HP-CRX (Extra high pressure concentric reducer) and 42HP-ERX (Extra high pressure eccentric reducer) with pressures equaling 42HPX


Page 20

MIGHTY-SPOOL SLEEVE TYPEMODEL 30DB

* Filled arches onlyNote 1) Shown open arch system available in filled arch, two arch and 4 arch designs.Note 2) Thorburn recommends not less than 2 clamps per cuff. For clamp details call Thorburn technical sales department.Note 3) For additional technical details, see page 15.Note 4) Detailed length should always be specified before time of order.

1/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/2

1*1.5*

22.53468

1012141618202436486072

“B”

Act

ual I

.D.

“A”

Typ

ical

4

Len

gth

(in.)

“C”

Cuf

f (in

ches

)

Slip-On Sleeve Type Triple Arch Expansion JointsSlip-On Sleeve Type Expansion Joints

Size(inches)

1.3151.9002.3752.8753.5004.5006.6258.625

10.75012.75014.00016.00018.00020.00024.00036.00048.00048.00072.000

6666666666101010101012121212

2222222222333334444

1111111111111111111

Com

pres

sion

(inch

es)

Ext

ensi

on(in

ches

)

1/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/2

Lat

eral

(inch

es)

75757575757575505050252525252510101010

Wor

king

Pres

sure

(PSI

)

1.3151.9002.3752.8753.5004.5006.6258.625

10.75012.75014.00016.00018.00020.00024.00036.00048.00060.00072.000

10101010101011111111151515151517171717

2222222222333334444

3333333333333333333

3/43/43/43/43/43/43/4

1 1/81 1/81 1/81 1/81 1/81 1/81 5/161 5/161 1/21 1/21 1/21 1/2

1 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/2

75757575757575505050252525252510101010

“B”

Act

ual I

.D.

“A”

Typ

ical

4

Len

gth

(in.)

“C”

Cuf

f (in

ches

)

Com

pres

sion

(inch

es)

Ext

ensi

on(in

ches

)

Lat

eral

(inch

es)

Wor

king

Pres

sure

(PSI

)

Slip-on/Clamp-on rubberexpansion joint system

Thorburn’s Mighty-Spool 30DB are custom fabricatedexpansion joints made in a single open, filled and/ormultiarch design. Mighty-Spool 30DB are specificallydesigned for low pressure piping applications wherehigher pressure flange is not required. The cuffs aredesigned to fit over the end of a pipe and are secured bythe use of clamps.

Typical Thorburn Model30DB double open archclamp-on expansionjoint with Thorburnworm gear clamps

ALSO AVAILABLE IN SLEEVE BY FLANGE DESIGN. SPECIFY MODEL 25DB.

For orderinginformation

see pages 32 and 33


Page 21

FOR COMPLETE ORDERING INFORMATION PLEASE SEE PAGES 32 AND 33

SPECIAL MOULDED ROUND LOW PRESSURE EXPANSION JOINTSMODEL 15R NON ARCH / 15RA ARCH TYPE

Low pressure round expansion joint system

■ Custom designed to suit application

■ Available in multiple and no arch designs

■ Integral moulded flange design

■ Contains pressures up to 25PSI/full vacuum

■ Available in wide choice of elastomers

Advantages■ Elimination of corner failure■ Elimination of costly gaskets■ Abrasion resistant■ Chemical resistant■ Low force to deflect

Thorburn’s 15R “no arch” design provides dead tight sealing for pipechutes or low pressure (max 25 PSI) to full vacuum containment for

solids, liquids or air. Thorburn’s Model 15R is used when lateraldeflection, misalignment or vibration must be compensated in a

ducting or low pressure system.

Model 15RA (archtype) when axial

and lateralmovement is

required

Thorburn’s 15RA “multi-arch”design was chosen for thealuminium smelters anode formingvibrating compactor. Applicationinvolves providing external fullvacuum sealing while absorbingover 20” (508 mm) axial movementat temperatures up to 400ºF(204ºC). Thorburn can designspecial arch profiles.

Thorburn’s Mighty-Spool Model 42HP-EF utilizes a fullfaced integral flange design with an enlarged or special

Thorburn Model 42HP0 offset joints are custom designed and built toremedy a specific misalignment and non-parallelism of 1/8” or more ofthe axis of the piping to be connected. Thorburn offset joints are

Model 42HPO “Offset Type” Model 42HPEFEnlarged Flange type

A FG

BC

D

Flang

e & R

et. R

ing O

.D.

Nomi

nal P

ipe S

izeJo

int I

.D.

E

Steel Retaining Ring

A FG

Flang

e & R

et. R

ing O

.D.

Nomi

nal P

ipe S

izeJo

int I

.D.

A

Equally SpacedBolt Holes

BoltHole

Die

Section AA

A

Bolt CircleFla

nge &

Ret.

Ring

O.D

.No

mina

l Pipe

Size

Join

t I.D

.

frequently used in close quarterswhere available space makes itimpractical to correctmisalignment with conventionalpiping.Conditions of offset and non-parallelism must be stated. Offsetscan be made from targets suppliedby customer and flanges may besupplied blank for drilling on jobsite.

drilled flange atthe other end. i.e.8” pipe flange atone end and 12”flange at theother end.

F

G

BC

D

Flang

e & R

et. R

ing O

.D.

Nomi

nal P

ipe S

izeJo

int I

.D.

A Retaining RingsE

LARG

E EN

DBo

lt Ci

rcle

Flang

e & R

et. R

ing O

.D.

Nomi

nal P

ipe S

izeJo

int I

.D.

SMAL

L END

Nomi

nal

Pipe S

izeJo

int I

.D.

B

G

C

D

E

Retaining Rings


Page 22

LOW PRESSUREMODEL 15RR-LP RECTANGULAR and MODEL 15R-LP ROUND

MOULDED DUCTING EXPANSION JOINTS

Light-weight expansion joint system■ Custom designed square, rectangular, oval, round■ Integral moulded flange design■ Contains pressure up to ± 3 psi■ Available in wide choice of elastomers■ Provides piping relief from vibration, thermal movement, shock and stress

Rectangular Flange/Corner Detail

A Low Pressure No Arch Expansion Joint SystemRectangular 15RR-LP - Round 15R-LP

Applications■ Air, water, slurry■ Pipe chutes■ Forced draft lines

Typical Installation Arrangement

Note 1. Lateral offset figures are based on the assumption that all lateral movement occurs prior to compression movements. In practice, movements occur simultaneously thus the allowablelateral offset would increase. Note 2. In vacuum applications a “set-back” design should be used. Note 3. Greater extension and/or lateral offset is gained through design of longer “built-in”flanges. Note 4. Anchors should be located so rated movement is not exceeded. Note 5. For specific ordering information, please see page 28. Always specify pressure and temperature. Note 6.Available round and arch design for greater movements. Call the Thorburn flexible piping specialists today.

Maximum Movement Capabilities

■ Custom designed

■ Square, rectangular,oval

■ Internal mouldedflange design

Neutral Position 6.00 0.50 0.25 0.25 9.00 1.00 0.25 0.50 12.00 1.50 0.50 0.75 16.00 2.00 0.50 1.00

Pre-Compressed 5.50 0.00 0.75 0.25 8.50 0.50 0.75 0.50 11.00 0.50 1.50 0.75 15.00 1.00 1.50 1.00

Movement at Shown Fully-Moulded Fully-Moulded Fully-Moulded Fully-MouldedFace to face Connector Connector Connector Connector

Connector asInstalled

Spacebetweenmatingductingflanges




Axi

alco

mpr

essi

onA

xial

exte

nsio

nL

ater

alof

fset

Axi

alco

mpr

essi

onA

xial

exte

nsio

nL

ater

alof

fset

Axi

alco

mpr

essi

onA

xial

exte

nsio

nL

ater

alof

fset

Axi

alco

mpr

essi

onA

xial

exte

nsio

nL

ater

alof

fset

6” 9” 12” 16”

FOR COMPLETE ORDERINFORMATION SEE PAGES 32 AND 33


Page 23

Code1

Code2

Code3

Code4

FLANGE (specify) COLLAR (specify)

Model End type Material Accessories1st 2nd

TCT-3 3 3 C C

HOW TOORDER

INSIDE FLANGE (specify) FLANGE TYPE COLLAR (specify)

LOW PRESSURE EXPANSION JOINTSBOOT-FLEX MODEL TCT

Boot-Flex Model TCTBoot-Flex construction is the ideal process for covers on rod andball screw applications. Not only are these airtight covers resistantto oil, sand and metal chips, but they also provide an inside diameterthat increases rather than decreases as the cover is extended. Thesecovers combine the clean appearance of a moulded cover with thestrength found only in fabric base materials.In the Boot-Flex process, a continuous sheet ofelastomer coated fabric is formed into a bellowstype cover with only one diagonal seam,providing a completely sealed cover capableof withstanding internal pressures of up to 15PSI (Most applications involve very lowpressures).Boot-Flex covers can be constructed ofneoprene, silicone, butyl, viton, hypalon orbuna-n elastomers with nylon, kevlar, orfibreglass reinforcing fabrics. Collar sealed connectors. Thorburn

Model TCT-33.

Typical Thorburn Boot-Flex expansion joint sealing system

Accessories CodesR = Back flange ringC = Clamps = Nothing

Thorburn Model TCT-1 TCT-1.5 TCT-2 TCT-2.5 TCT-3 TCT-3.5 TCT-4 TCT-4.5 TCT-5 TCT-6 TCT-7 TCT-8 TCT-10

Inside Diameter (in.) 1 1.5 2 2.5 3 3.5 4 4.5 5 6 7 8 10Outside Diameter (in.) 1.75 2.38 3 3.5 4.25 5 5.5 6 6.75 8 9 10 12Maximum Open Length (in.) 24 24 24 24 24 24 24 24 24 24 24 24 24Closed Length (in.) 5.25 4.5 4 4 3.25 3 3 3 2.5 2.25 2.25 2.25 2.25

Material CodesElastomer Thorburn MCOT

Type CodeNeoprene C 220ºFSilicone L 500ºF

Butyl E 300ºFViton I 400ºFNitrile D 250ºF

Flanged sealed connector. ThorburnModel TCT-44.

ClosedLength

Length

Open Length

Length


Page 24

COMMON FLANGE DIMENSION/DRILLING CHART, MATING FLANGE THICKNESS FORTHORBURN EXPANSION JOINTS, FITTINGS, RETAINING RINGS, CONTROL UNITS

2 1/22 1/23 1/23 7/84 1/44 5/8

567

7 1/28 1/2

91011

13 1/2161921

23 1/225

27 1/229 1/2

3234 1/436 1/238 3/441 3/443 3/4

4648 3/450 3/4

5355 1/457 1/459 1/261 3/4

6466 1/468 3/4

717380

86 1/293

99 3/4106 1/2113 1/4

120126 3/4140 1/4153 3/4167 1/4

1 11/161 11/162 3/82 3/43 1/83 1/23 7/84 3/45 1/2

67

7 1/28 1/29 1/2

11 3/414 1/4

1718 3/421 1/422 3/4

2527 1/429 1/231 3/4

3436

38 1/240 1/242 3/445 1/447 1/449 1/251 3/453 3/4

5658 1/460 1/262 3/4

6567 1/469 1/4

7682 1/2

8995 1/2

102108 1/2114 1/2120 3/4132 3/4145 3/4158 1/4

44444444448888812121216162020202428282832323236364040444444444848525260646468687272768084

7/167/165/85/85/85/85/83/43/43/43/43/47/87/87/811

1 1/81 1/81 1/41 1/4

--1 3/8

----

1 3/8----

1 5/8----

1 5/8----

1 5/8----2----2--2--

2 1/4--

2 1/2----------

----

5/85/85/85/85/83/43/43/43/43/47/87/87/811

1 1/81 1/81 1/41 1/41 3/81 3/81 3/81 3/81 3/81 5/81 5/81 5/81 5/81 5/81 5/81 5/81 5/81 5/81 7/81 7/81 7/81 7/81 7/81 7/81 7/81 7/82 1/82 1/82 3/82 3/82 5/82 5/82 7/83 1/83 3/8

----------------------

3/43/43/43/43/43/47/87/87/87/87/87/87/87/8111111

1 1/81 1/81 1/81 1/81 1/41 1/41 3/8

----

1 3/81 3/81 3/81 5/81 5/81 7/81 7/82 1/82 1/82 3/82 5/82 7/8

----

2 5/83 1/43 1/23 7/84 1/2

55 7/86 5/87 1/47 7/89 1/410 5/8

1315 1/417 3/420 1/422 1/224 3/4

2729 1/4

3234 1/2

3739 1/441 1/243 1/2

4643

45 1/252 3/4*49

3/452

60 3/4*56 1/458 1/4

61636567

----

3 3/44 5/84 7/85 1/46 1/86 1/27 1/28 1/4

91011

12 1/215

17 1/220 1/2

2325 1/2

2830 1/2

3336

38 1/440 3/4

4345 1/447 1/2

5046

48 3/457*

53 1/455 3/465*

60 1/462 1/465 1/467 1/469 1/471 1/4

----44444888888121216162020242424242828282828323232

36*3228

40*323228283232

----

5/83/43/43/47/83/47/87/87/87/87/87/81

1 1/81 1/41 1/41 3/81 3/81 3/81 5/81 5/81 3/41 3/42*22

2 1/4*1 5/81 3/4

2 1/4*1 5/8

22 1/4*2 1/82 1/82 3/82 3/82 3/82 3/8

--------

7/161/2

9/165/8

11/163/4

13/1615/1615/16

11 1/8

1 3/161 1/41 3/8

1 7/161 9/161 11/16

--1 7/8

----

2 1/8----

2 3/8----

2 5/8----

2 3/4----3----

3 1/8--

3 1/2--

3 7/8--

4 1/4----------

9/329/325/1611/323/8

13/327/161/2

9/165/8

11/1611/163/4

13/1615/16

11 1/16

----------------------------------------------------------------------

----

7/161/2

9/165/8

11/163/47/8

15/1615/1615/1615/16

11 1/81 3/161 1/41 3/81 7/161 9/16

1 11/16--

1 7/8----------------------------------------------------------

------------------------

5/811/1611/1611/1611/1611/1611/1611/1611/163/43/4

13/167/87/8

15/1615/16

111

1 1/81 1/81 1/81 1/41 1/41 1/41 3/8

----

1 1/21 5/81 3/4

22--

2 1/42 1/22 1/22 3/4

33 1/4

------------------------

5/811/1611/1611/1613/1615/16

11 1/161 1/8

1 3/161 1/4

1 5/161 5/161 3/81 1/21 1/21 5/81 5/81 5/81 3/41 3/41 3/41 3/4

22

2 1/8----

2 1/42 1/22 5/82 3/42 3/4

--3

3 1/43 1/43 1/23 3/4

4

------------------------

1/29/169/1611/1611/163/43/43/43/411111

1 1/81 1/81 1/81 1/81 1/81 1/41 1/41 1/41 3/81 3/81 3/81 3/8

----

1 1/21 1/21 1/21 3/41 3/4

--2

2 1/42 1/42 1/22 3/4

3

----

7/161/2

9/165/8

11/163/47/8

15/1615/1615/1615/16

11 1/81 3/161 1/41 3/81 7/161 9/16

1 11/16--

1 7/82

2 1/162 1/82 1/42 5/162 3/82 3/82 1/22 5/82 5/8

2 11/162 3/42 3/42 7/8

3----

3 1/83 3/83 1/23 7/83 7/8

--4 1/44 5/84 5/8

55 3/85 3/4

--------------------------------

1 1/41 3/81 7/161 9/16

1 11/161 13/161 7/8

2 11/162 13/162 15/163 3/163 1/43 9/163 7/163 9/16

3 13/164

4 1/164 1/44 3/84 9/164 3/44 7/85 1/165 3/16

----------------------

O.D. B.C.No. ofHoles A B C O.D. B.C.

No. ofHoles

HoleDia.

Nom

inal

Pip

e Si

zeE

xpan

sion

Joi

ntI.D

.

AN

SI B

16.1

CL

ASS

125

AN

SI B

16.5

CL

ASS

150

AM

SSS

SP-4

4C

LA

SS 1

50

AN

SI B

16.2

415

0 L

BM

SSS

SP-5

1

AW

WA

C20

7T

AB

LE

1,

CL

ASS

B

AW

WA

C20

7T

AB

LE

1,

CL

ASS

D

AW

WA

C20

7T

AB

LE

2,

CL

ASS

B&

D

AW

WA

C20

7T

AB

LE

3,

CL

ASS

E

Drilling ColumnCommon Size Bolt Hole Size

125/150 Lb. Drilling 250/300 Drilling Mating Flange Thickness

ANSI B16.1 - 1975 CLASS 250ANSI B16.24 - 1971 300 LBANSI B16.5 - 1973 CLASS 300MSS SP-44 - 1975 CLASS 300

1/43/81/23/41

1 1/41 1/2

22 1/2

33 1/2

4568

1012141618202224262830323436384042444648505254565860667278849096102108120132144

* Dimension shown does not meetMSS-SP44

Note: When ordering/specifyingThorburn expansion joints, rubberpipe, retaining rings or control unitassemblies, always note the matingflange drilling specification or theactual dimensions if specification isunknown. In the absence of this data,these products will be drilled toANSI B16.1 Class 125.

ANSI B16.1 - 1975 CLASS 125 AANSI B16.24 - 1971 150 LB AANSI B16.5 - 1973 CLASS 150 AAWWA C207-78 TABLE 1&2, CLASS B CAWWA C207-78 TABLE 1&2, CLASS D,TABLE 3, CLASS E BMSS SP-44 - 1975 CLASS 150 BMSS SP-51 - 1965 MSS 150 LB A


Page 25

THORBURN SPLIT RETAINING RING TECHNOLOGYProviding Equal Pressure

Rubber to Metal Sealing ContainmentThorburn’s precision machined drilledzinc dichromate plated joint flange splitretaining rings are simply the world’sfinest product offering.

Thorburn reinforced rubber flange split retaining ringsSeries “RR”Thorburn split and bevelled retaining rings must be used to equally distributethe bolting pressure, ensuring a pressure tight seal. They are typically zincor galvanized steel for corrosionresistance and drilled to requiredspecifications. Thorburn’s retainingrings are installed directly againstthe back of the flanges of the rubberexpansion joint and bolted throughthe mating metal expansion flangepipe. Rings are normally 3/8” thickbut can vary due to conditions.

Metal washers are used where therings are split. Thorburn’s retainingrings are also available in stainless,Inconel, Hasteloy, 6MO, Monel andother materials upon request.

Finishing process for Thorburn’s retainingrings bevelled smooth with no rough edges,

which could damage the expansion joint

Thorburn machining specialist preparingto drill the matching bolt holes on

Thorburn’s back-up retaining rings

Thorburn machining specialists drilling theretaining rings to the desired tolerances

E.J. Model-Size (in.) Ring set Material code

42HP-42 RR S4

Material Codes:Standard = carbon steel S4 = 304S S6 = 316SS X = Other specify

HOW TO ORDER THORBURN’S SPLIT RETAINING RING SETS SEPARATELY

Example


Page 26

THORBURN’S STYLE “CR” CONTROL ROD ASSEMBLYThorburn’s style “CR” control rod assembly system consists of two or more control rods extending from the matingflanges of the expansion joint, minimizing possible damage to the expansion joint caused by excessive movement ofthe pipeline. Thorburn’s control rod assembly systems are set at the maximum allowable expansion of the joint andabsorb the static pressure thrust developed at the expansion joint. Over-compression of the expansion joints can becontrolled by installing rubber pipe sleeves over the control rods. The length of the pipe sleeve is such that the expansionjoint cannot be compressed beyond its maximum allowable compression capabilities.

Illustrating Thorburn’s spherical washer systemdispensing equal axial and lateral load distribution

Thorburn’s superior performing sphericalwasher system

Thorburn’s spherical washer design eliminates the problemsassociated with the traditional flat steel rubber washerdesign. In particular, the inadequate compressive strengthof the flat steel rubber washer design 1) does not allow forequal dispersement of axial or lateral forces; 2) it extrudesout to failure shortly after being subjected to the designsystem working pressures thus rendering itself useless.

Thorburn’s superior spherical washerenhances the performance of the control rodsystem for three reasons:✓ It allows the designed torsional, lateral and angular

movements to occur with a smooth non binding action.

✓ Under axial load allows all the forces to travel throughthe control rod system while maintaining a level alti-tude on the existing force plane.

✓ During extreme lateral movement disperses the forcesequally on the control rod unit.

Enlarged view of Thorburn’s standard control rod assembly

Typical Thorburn spool type expansion joint with optional sphericalwasher control rod assembly/installation of Thorburn’s control rodassembly style “CR”

Thorburn’s three nut control rod unit standard

Thorburn utilizes a second nut at one end of its controlrod while the other end of the rod has its nut perma-nently tack welded in place. This design 1) permits safe,easy installation and disassembly (for scheduledmaintenance or repair) of the control rod unit; 2) allowsthe control rod assembly unit to be adjusted after thejoint has had time to settle; 3) makes it impossible tovibrate loose; 4) resists the axial extension loads of thepiping system.

ControlRodPlate

Double NutDesign

TackWelded Nut

RetainingRing

MatingPipe

Flange


Withoptionalsphericalwasher

Control rod plateNutControl rod

Sphericalwasher

Concave washerConvex washer

Nut

Control rod plate

Control rod

Spherical washer

Concave washerConvex washer


Page 27

DIMENSIONS AND RATINGS

Typical Thorburn control rod system with spherical washers

NominalPipeSize

Exp. Jt.I.D.(in)

CONTROL UNIT MAXIMUM SURGEOR TEST PRESSURE

OF THE SYSTEMPSIG

1/23/41

1 1/41 1/2

22 1/2

33 1/2

4568101214161820222426283032343638404244464850525456586062667278849096

108144

1328110694983051066152944136531123518616316316011211394798574626570637269634248444140373543403835333025282426291813

----------------

5474673532782442442401671701411181281109398

10594

107103946372666160565364605653504438423740432819

----------------

7296224703713263253202232271871581711471241301411251431381258596888281757086807571665950564953584626

--------------------------------

45337531534229424826128125128627625116919217716316115014017116015014113311910111298

1061159152

--------------------------

4884813353402812362562211861952111882152071881271441331221211121051281201131061008975847379866839

2 3 4 6 8

Number of ControlRods Recommended

StandardControl UnitAssembly of:

1/21/21/21/21/25/85/85/85/85/85/85/83/47/811

1 1/81 1/81 1/81 1/41 1/41 1/41 3/81 1/21 1/21 5/81 3/41 3/41 1/21 5/81 5/81 5/81 3/41 3/41 3/4

2222222

2 1/42 1/42 1/22 3/42 3/4

3

RodDia-

meter(in)

222222222222222222222223333333333333333444444446

Rods

44444444444444444444444666666666666666688888888

12

Plates

PlateThick-

ness(in)

6.56.78.18.68.8

10.611.912.312.212.712.814.917.920.423.825.928.230.132.435.337.840.342.544.847.850.553.356.057.660.262.664.566.768.971.273.575.978.281.084.088.294.7101.4108.4115.4122.9137.3180.0

PlateO.D.

Installed(in)

3/83/83/83/83/83/83/83/83/83/83/81/21/23/43/43/43/43/43/4111

1 1/41 1/41 1/41 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 1/21 3/41 3/41 7/81 7/8

22 1/42 1/22 1/22 3/4

3

Dimensions

NOTES:

1. Recommended plate thickness and rod diameter based on ayield strength of 36,000 PSI with a maximum allowablestress of 23,400 PSI (65% of yield). Rod and plate loadbased on thrust, calculated using typical Thorburn arch in-side diameter dimensions.

2. A “Standard Control Unit Assembly” is generally furnishedwhen ordered, if specifications and/or order does not callout a specific number of control rods.

3. The pressures listed do not relate to the actual design pres-sure of the expansion joint product, but are the maximumpressure for a specific control rod number/dimension.

How to Order ThorburnControl Rod Assemblies

Separately

[Size (in)] + [CR] + [Rod Number] + [Options(SW= Spherical Washer; IW= Insulation Washer)] +[Material]

Examples:1) 6 CR2 (Two (2) rod assembly sets for 6” ID

joint)2) 6 CR2-SW (Two (2) rod assembly sets

complete with a spherical washer system)

Thorburn’s typical control rod assembly with a 2plates, 1 rod, 3 nuts, 2 metal and rubber washers

Material codesStandard = carbon steel S4 = 304SS6 = 316SS X = Other specify


Page 28

GUIDING AND ANCHORING PRACTICESWITH RUBBER EXPANSION JOINT SYSTEMS

It is absolutely necessary that rigid metal pipe on both ends of the rubber expansion joint be properly anchored toeliminate the danger of excessive elongation. Anchors should be provided at:

■ A change in pipe size ■ A change of pipe direction■ A branching of pipe ■ The end of a pipe run

Thorburn rubberexpansion jointswith control units

Anchor

Solid anchor (see Fig. 1)

Solidfoundation

Pump

Flow

Pipe sleeve

Typicalpipe guides

Pipe guides usedto prevent pipedisplacement

Fig. 3 - Typical piping layout showing the use of control unitswith the expansion joints when proper system anchoringis limited

Solidanchors

designed to withstandthe thrust and any other forces

imposed on the system at these points

Pipe guides

Solidfoundation

Thorburn rubberexpansion jointswithout controlrod assembly

WARNING: An expansion joint should never be used tosupport the piping.

Fig. 1 - Typical piping layout utilizing Thorburn expansion jointsand the proper use of anchors in branch locations

Thorburn rubberexpansion joints

without control rodassembly

Solidanchors

(see Fig. 1)

Elbow support anchored to pump baseso that no pumping forces are transmitted to the flanges of the pump itself

Solid basefoundation

Pump

Flow

Pipe guides usedto prevent pipedisplacement

Fig. 2 - Typical piping layout utilizing Thorburn rubber expan-sion joints when equipment and piping are properlyanchored

T = þ (D)2 (P)4

Employing Thorburn’s control rod assembly system toprotect your piping system

The use of Thorburn’s control rod assembly in Fig. 3 permits theexpansion of the pipeline in both the vertical and horizontal di-rections between the pump and the anchor at the 45º bend to thedesign limitations of Thorburn’s expansion joint and no further.

WARNING: When anchoring is not present in a piping run, it ismandatory that a properly designed Thorburn control rod assembly beemployed with its expansion joints. Without the use of Thorburn’s controlrod assembly in Fig. 3, the pipeline between the pump and the anchor atthe 45º bend would be severely displaced because the piping systems’pressure thrust forces would cause Thorburn’s rubber expansion jointsto extend until they rupture.

Fig. 4 - Thrust formula and location of expansion joint arch I.D.


Page 29

INSTALLATION INSTRUCTIONS FOR THORBURN’SNON-METALLIC PIPE CONNECTORS AND EXPANSION JOINTS

A) Check requirements of the system. Double-check the performancelimits of Thorburn's rubber expansion joints against the anticipatedoperating conditions. Expansion joints should never be subjected tooperating conditions beyond the temperature, pressure and/or vacuumrecommendations of the manufacturer. If the total joint deflectioncaused by the initial installation and the movements of pipelinesduring system operation exceed Thorburn's specifications or its generalarrangement drawing (maximum allowable movement), then the pipelineshould be altered to reduce the initial installation deflections.

B) Check the opening. Re-measure to ensure the face-to-face is accurate.Any variance from the specified opening will reduce the total allowablemovements by the amount of variance. Please note: Movement forThorburn's rubber expansion joints are non-concurrent and thepercentage of their sum cannot exceed 100%.

C) Align piping system. Thorburn's rubber expansion joints shouldnever be used to compensate for misalignment unless suchmisalignment is a calculated basis of design. If the system cannot bealigned to within 1/8", an offset expansion joint should be used.

D) Check anchors, supports and alignment guides. To limit andcontrol the pipe movements that Thorburn's expansion joints mustabsorb, the line should be anchored and properly supported.

Paragraph 319.1 of ANSI B31.3 1980 states that: "Piping systemsshall have sufficient flexibility to prevent thermal expansion or contractionof movements of piping supports and terminals from causing:

a. Failure of piping or supports from overstress or fatigue;

b. Leakage at joints; or,

c. Detrimental stresses or distortion in piping or in connectedequipment (pumps, turbines or valves, for example) resultingfrom excessive thrusts and movements in the piping."

1. Spare parts should be stored in a cool, dark, dry place in a flat position (Do not store on flange edges). Ideal storage is a warehouse with a relatively dry, coollocation. Store flange face down on a pallet or wooden platform. Do not store other heavy items on top of a Thorburn expansion joint. Ten year shelf-life can beexpected with ideal conditions. If storage must be outdoors, Thorburn’s joints should be placed on wooden platforms and should not be in contact with the ground.Cover with a tarpaulin.

2. Large joint handling. Do not lift with ropes or bars through the bolt holes. If lifting through the bore, use padding or a saddle to distribute the weight. Make surecables or forklift tines do not contact the rubber. Do not let Thorburn expansion joints sit vertically on the edges of the flanges for any period of time.

3. System tests should not exceed 150% of the rated working pressure of the expansion joints. Systems should not be operated above the rated pressure ortemperature of the expansion joints.

4. Insulating over expansion joints is not recommended. If insulation is required, it should be designed for easy removal so the periodic inspection procedure canbe maintained. This facilitates periodic inspection of the tightness of the joint bolting.

5. Welding should not take place in the vicinity of the expansion joints. If welding occurs frequently above the expansion joint, a protective shield should be installed.

6. If underground installation is necessary, a protective shield over the expansion joint should be provided. Back-filling directly onto the expansion joints is notrecommended.

7. Submerged in water. Contact Thorburn for specific recommendations.

Even if your particular piping system does not fall under the jurisdictionof the B31 piping codes, their guidelines are the industry standardfor accepted good practice.

In any case, Thorburn's rubber expansion joints and flexible pipeconnectors are not designed to support the weight of the pipingsystem. If the system is not properly supported or anchored to B31piping codes, control rods must be installed. See pages 25 to 27 foradditional information.

E) Check mating flanges. The mating flanges to be attached with theflanges of Thorburn's expansion joints or pipe connectors must beclean. Mating metal flanges should not have more than a 1/16"raised face. Used parts should be carefully examined for reasonablesmoothness, and any adhering particles of old gasketing or otherforeign material should be scraped off, taking care not to gouge ormutilate the flange surface.

F) Check expansion joint cover. Check the outside cover of the jointfor damage before placing in service. The cover is designed to keepharmful materials from penetrating the carcass of the joint. If thecover is damaged and carcass is visible, it should be repairedbefore submitted into service.

G) Verify expansion joint location. It can be stated generally that theproper location of Thorburn's rubber expansion joints is close to amain anchoring point. Following the joint in the line, a pipe guide orguides should be installed to keep the pipe in line and preventundue displacement of this line. This is the simplest application ofa joint, namely, to absorb the expansion and contraction of a pipelinebetween fixed anchor points.

PRE-INSTALLATION CHECKLIST

General precautions before installation


Page 30


1. Flangeless valves. Never install spool-type rubber expansion joints next to flangeless butterfly valves or flangeless check valves. Serious damage to therubber joint can occur unless it is installed against full-face metal flanges.

2. Undue stress. Do not install an expansion joint in a system in an attempt to "pull" misaligned piping into position.

3. Retaining rings. Never install spool-type expansion joints without using the back-up retaining rings behind both flanges.

4. Control units. Install control units with a Thorburn rubber expansion joint if piping is not adequately anchored or if there is any question that movementsmay exceed the rated value of the joint.

5. A spare. At the time of installation, consider ordering a spare joint. Although Thorburn expansion joints are engineered to give long, dependable service,the cost of equipment downtime in the event a joint wears out can far outweigh the cost of a spare.

1. Alignment. Pipelines containing standard expansion joints should belined up accurately before installing the joints. If the joints are to beinstalled with appreciable initial misalignment, compression or elonga-tion, the amount of these deflections should be deducted from thespecified allowable movements of the joint. If the total joint deflectiondue to initial installation and the movement of the pipeline during systemoperation exceeds the published maximum allowable movement of theexpansion joint, then the pipeline should be altered to reduce the initialinstallation deflections. Alternately the pipe may be anchored in someapproved manner to limit the pipe movements to what the expansionjoint can absorb.

2. Flange face lubricant. Apply in thin film of graphite dispersed in glyc-erin or water to the face of the rubber flanges before installing theexpansion joint. This is a type of lubricant that may be used on rubberflanges. Its purpose is to simplify installation and to permit easy removalat some future date (not required for TFE or FEP lined joints).

3. Mating flanges. Install the expansion joint against the mating pipeflanges and install bolts so that the bolt head and washer are against theretaining rings. If washers are not used, flange leakage can result –particularly at the split in the retaining rings. Flange-to-flange dimen-sions of the expansion joint must match the breech type.

4. Bolting. Insert bolt from the arch side of the flange. Tighten bolts byalternating around the flange and tighten all bolts equally. The bolts arenot considered tight until the edge of the expansion joint flange bulgesslightly. Check bolt tightness at least one week after going onstream and

EXPANSION JOINT INSTALLATION TIPSperiodically thereafter. As any rubber-like material takes a set after aperiod of compression, the bolts may loosen and result in a break in theseal. It is particularly important to check bolts in a hot and cold watersystem before changing over from one medium to the other.

5. Tightening bolts. Tighten bolts in stages by alternating around theflange. If the joint has integral fabric and rubber flanges, the bolts shouldbe tight enough to make the rubber flange O.D. bulge between theretaining rings and the mating flange. Torque bolts sufficiently to assureleak-free operation at hydrostatic test pressure. If the joint has metalflanges, tighten bolts only enough to achieve a seal and never tightento the point that there is metal-to-metal contact between the joint flangeand the mating flange.

6. Inspect cover for any accidental cuts or gouges. The protectivecover should be repaired with rubber cement prior to system start-up.

7. Outdoor installation. If the expansion joint will be installed outdoors,make sure the cover material will withstand ozone, sunlight, etc. Mate-rials such as neoprene and chlorobutyl are recommended. Materialspainted with weather resistant paint will give additional ozone and sun-light protection.

8. Re-tighten bolts after seven days of operation and periodically there-after. Rubber parts will take a set after a period of compression. Loos-ening of the bolts and breakage of the seal may occur if this procedureis not followed.

Special precautions

The purpose of this publication is to provide a handy reference source of pertinent information for the thousands of engineers whose daily concern isdesigning piping systems and overseeing installations. No portion of this publication attempts to establish dictates in modern piping design.

Thorburn makes no warranty concerning the information or any statement set forth in this publication, and both expressly disclaim any liability forincidental and consequential damages rising out of damage to equipment, injury to persons or products, or any harmful consequences resulting fromthe use of the information or reliance on any statement set forth in this publication.

Warning


Page 31

Inspection procedure for expansion joints in service


1. Pre-installation checklist

1.1 Compare the requirements of the system to ensure the proper number of controlrods have been specified (Minimum of two required).

1.2 Check units to be sure all parts are included. The unit consists of two controlrod plates, one bolt with two nuts and two metal spherical washers or flatwashers.

2. Control rod installation tips

2.1 Assemble Thorburn expansion joint between pipe flanges to the manufacturedface to face length of the expansion joint. Include the retaining rings furnishedwith the expansion joint.

2.2 Assemble control rod plates behind mating pipe flanges. Flange bolts throughthe control rod plate must be longer to accommodate the plate. Control rodplates should be equally spaced around the flange. Depending upon the sizeand pressure rating of the system, 2, 3 or more control rods may be required.

2.3 Insert control rods through top plate holes. Steel washers are to be positionedat the outer plate surface. An optional rubber washer is positioned between thesteel washer and the outer plate surface. For spherical washer installation pleasesee pages 25 to 27.

2.4 If a single nut per unit is furnished, position this nut so that there is a gapbetween the nut and the steel washer. This gap is equal to the joint’s maximumextension (commencing with the nominal face to face length). To lock this nut inposition, either “stake” the thread in two places or tack weld the nut to the rod.If two jam nuts are furnished for each unit, tighten the two nuts together, so as

The following suggestions are intended to assist the designer in determining ifThorburn’s expansion joint should be replaced or repaired after extended service.

A. Replacement criteria

If an expansion joint is in a critical service condition and is five or more years old,consideration should be given to maintaining a spare or replacing the unit at ascheduled outage. If the service is not of a critical nature, observe the expansionjoint on a regular basis and plan to replace after 10 years service. Applicationsvary and life can be as long as 30 years in some cases.

B. Procedures

B-1 Craking. Craking, checking or crazing may not be serious if only the outer coveris involved and the fabric is not exposed. If necessary, repair on site with rubbercement where cracks are minor. Cracking where the fabric is exposed and tornindicates the expansion joint should be replaced. Such cracking is usually theresult of excessive extension, angular or lateral movements. Such cracking isidentified by: 1) a flattening of the arch; 2) cracks at the base of the arch and/or3) cracks at the base of the flange. To avoid future problems, replacementexpansion joints should be ordered with Thorburn control rod units.

B-2 Blisters/Deformation/Ply separation. Some blisters or deformations, when onthe external portions of Thorburn’s expansion joints may not affect the properperformance of the expansion joints. These blisters or deformations are cosmeticin nature and do not require repair. If major blisters, deformations and/or plyseparations exist in the tube, the expansion joint should be replaced as soon aspossible. Ply separation at the flange O.D. can sometimes be observed and isnot a cause for replacement of the expansion joint.

to achieve a “jamming” effect to prevent loosening. Consult Thorburn if thereis any question as to the rated compression and elongation. These twodimensions are critical in setting the nuts and sizing the compression pipesleeves.

2.5 If there is a requirement for compression pipe sleeves, contact Thorburn todetermine length to allow Thorburn joint to be compressed to its normal limit.

2.6 For Thorburn reducer joint installation, it is recommended that all control rodinstallations be parallel to the piping.

2.7 The expansion joint should always be installed in an accessible location toallow for future inspection or replacement.

3 Installation

3.1 Bolt the control rod plates to the opposite side of the metal flange at thesame time the bolt is being installed through the rubber flange. The platesare to be equally spaced around the circumference of the flange.

3.2 Install the bolt through the third hole in each control rod plate after placing ametal flat washer or spherical washer set next to the bolt head.

3.3 Install the locking nuts after placing the flat or spherical washer half on thecontrol thread, the first nut on the rod then the second.

3.4 Positioning control rod unit. The control rod assembly is set at the maximumallowable expansion and/or contraction of the joint.

3.5 Repeat steps 3.1 to 3.4 for each control rod unit.

CONTROL ROD INSTALLATION

B-3 Metal reinforcement. If the metal reinforcement of a Thorburn expansion jointis visible through the cover, the expansion joint should be replaced as soon aspossible.

B-4 Dimensions. Any inspections should verify that the installation is correct; thatthere is no excessive misalignment between the flanges and that the installedface-to-face dimension is correct. Check for over-elongation, over-compression,lateral or angular misalignment. If incorrect installation has caused the expansionjoint to fail, adjust the piping and order a new expansion joint to fit the existinginstallation.

B-5 Rubber deterioration. If the joint feels soft or gummy, plan to replace theexpansion joint as soon as possible.

B-6 Leakage. If leakage or weeping is occuring from any surface of Thorburn’sexpansion joint, except where flanges meet, replace the joint immediately. Ifleakage occurs between the mating flange and the expansion joint flange, tightenall bolts. If this is not successful, turn off the system pressure, loosen all flangebolts and then re-tighten bolts in stages by alternating around the flange. Makesure there are washers under the bolt heads, particularly at the split in theretaining rings. Remove the expansion joint and inspect both rubber flangesand pipe mating flange faces for damage and surface condition. Repair or replaceas required. Also, make sure the expansion joint is not over-elongated as thiscan tend to pull the joint flange away from the mating flange resulting in leakage.If leakage persists, consult the manufacturer for additional recommendations.


Page 32

F F F F F F

F F F F F F

THORBURN’S PIPE CONNECTORS AND EXPANSION JOINTSTECHNICAL SPECIFICATION SHEET

DATE SHEET NO

COMPANY NAME PROJECT NAME

MAILING ADDRESS INQUIRY/JOB NUMBER

CITY/PROVINCE(STATE)/COUNTRY/POSTAL CODE(ZIP) ITEM NO. TAG NO. ITEM NO. TAG NO. ITEM NO. TAG NO.

NAME OF PERSON SUBMITTING DATA PHONE NO QUANTITY REQUIRED QUANTITY REQUIRED QUANTITY REQUIRED

PIPE SIZE OF APPLICATION:Nominal pipe size or the inside diameter of the connecting pipe flange.

INSTALLED LENGTH:What is the space between connecting pipe flanges. Indicate limitations, if any.

FLOWING MEDIUM:Indicate chemical. If flowing medium is corrosive, abrasive or viscous, explain in detail.

TYPE OF MEDIUM:Indicate if liquid, gas, slurry, solids, etc.

TEMPERATURE OF FLOWING MEDIUM:Indicate both operating and maximum temperatures at the expansion joint.

TEMPERATURE OF SURROUNDING ATMOSPHERE:Indicate both minimum and maximum temperatures of atmosphere at the expansion joint.

TIME DURATION AT MAXIMUM TEMPERATURE:Indicate length of time.

VELOCITY OF FLOWING MEDIUM:In feet per minute.

OPERATING PRESSURE AT THE JOINT:Actual pressure in which system works in normal conditions.

DESIGN PRESSURE OF THE SYSTEM:Highest/most severe pressure expected during operation.

SURGE PRESSURE OF THE SYSTEM:Increased pressure due to pump starts, valve closings, etc.

TEST PRESSURE OF THE SYSTEM:Hydrostatic test used to demonstrate system capability.

TYPE OF PRESSURE:Constant, intermittent, shock, pulsating, etc.

AXIAL COMPRESSION AT JOINT:In inches as a result of pipe extension - expansion (for milimeters, specify mm).

ACTUAL ELONGATION AT JOINT:In inches as a result of pipe contraction (for milimeters, specify mm).

LATERAL DEFLECTION AT JOINT:In inches (for milimeters, specify mm).

ANGULAR MOVEMENT AT JOINT:In degrees (for milimeters, specify mm).

TORSIONAL MOVEMENT AT JOINT:In degrees (for milimeters, specify mm).

PIPE FLANGE DRILLING:Indicate specific standards such as 150# ANSI B16.5. If special, provide: Flange O.D.,bolt, circle, number and size of holes.

MATING PIPE FLANGE THICKNESS:In inches.

LOCATION OF JOINT INSTALLATION:Indoors or outdoors, vertical or horizontal.

RETAINING RINGS:Are required on all installations. Reusable, they need not be ordered with replacement orspare expansion joints.

CONTROL UNIT ASSEMBLIES:Are recommended for use in all expansion joint applications. Control units must be usedwhen piping support or anchoring is insufficient.

INCHES INCHES INCHES





DEGREES DEGREES DEGREES

DEGREES DEGREES DEGREES

OPERATE MAXIMUM OPERATE MAXIMUM OPERATE MAXIMUM

MINIMUM MAXIMUM MINIMUM MAXIMUM MINIMUM MAXIMUM

POSITIVE NEGATIVE POSITIVE NEGATIVE POSITIVE NEGATIVE




FT./MIN. FT./MIN. FT./MIN.

PSIG “Hg PSIG “Hg PSIG “Hg




YES OR NO YES OR NO YES OR NO

YES OR NO YES OR NO YES OR NO

SPECIFICATION SPECIFICATION SPECIFICATION


MIS

CE

LL

AN

EO

US

MO

VEM

ENTS

PRE

SSU

RE

SFL

OW

ING

ME

DIU

MSI

ZE

CO

MPA

NY


Page 33

Blank = None

CR = Yes

R = Rings

Blank = None

Standard material is plated steel.For other material insert followingsuffix after code.

304SS = S4

316SS = S6

6MO = 6MO

Monel = M

Others = O and specify

A = Natural rubberB = Pure gumC = NeopreneD = NitrileE = ButylF = HypalonG = Cross/Link PolyethyleneH = EPDMI = VitonJ = Teflon PTFEK = Teflon PFAL = SiliconeX = Special

F = Filled

O = OpenN = No arch

S = Single

D = Double

T = Triple

Q = Quadruple

For archesgreater than 4,specify asfollows:5A, 6A, 7A...

ID1, ID2*-FF

* if applicable

Model Type Size Arches # Arch Type Material Ret. Ring/ Control Rod & # Accessories IDXLength “F” Tube Cover Material Material

42HP 6 X 12 T O F C R S6 C R 2 S6

Blank: - No accessory

SW = Spherical washers

PS - Control rod assemblywith compressionmovement restrictingpipe sleeves

X= Other, specify

NOTES1) For millimeter sizing, round off to nearest inch

size for part # and specify milimeter sizing

2) For anything not listed, put “X” at the end ofthe part number and specify

3) If flange drilling different than ANSI B16.1Class 125, specify

4) If mating flange different than ANSI B16.5 orAWWA L207 Table 3 Class E, specify

EXAMPLE: Verbally interpreted Thorburn Model 42HP 6” ID by 12”Length, triple arch, open design, Hypalon tube, Neoprene cover, with316SS retaining rings and 2 rod control units in 316SS.

HOW TO ORDER THORBURN CUSTOM RUBBER PIPE EXPANSIONJOINTS WITH RETAINING RINGS AND CONTROL ROD UNITS

HAND BUILT EXPANSION JOINT STYLES PAGES

Round Spool Type Arch Flanged35LP = Low pressure ...................................................... 13 to 1750SP = Standard Pressure ............................................. 13 to 1742HP = High pressure .................................................... 13 to 1742HPX = Extra high pressure ......................................... 13 to 1742HPX-HD = Extra high pressure deep sea waterservice where exterior pressure differential is present ............ 67

Spool Type Arch Flanged Reducer42HP-CR = High pressure concentric reducer ................... 18,1942HP-ER = High pressure eccentric reducer ..................... 18,1942HP-CRX = Extra high pressure concentric reducer ....... 18,1942HP-ERX = Extra high pressure eccentric reducer .......... 18,19

Low Pressure Sleeve Type30DB = Cuff sleeve by cuff sleeve .......................................... 2025DB = Flanged by sleeve ...................................................... 20

Rectangular/Round Moulded Flanged Ducting Expansion Joints15RA = Round low pressure arch type < 25 psi ...................... 2115R = Round low pressure no arch < 25 psi ........................... 2115RRLP = Low pressure less ± 3 psi rectangular ................... 2215RLP = Low pressure ± 3 psi round ...................................... 22

Specials42HPO = Offset ....................................................................... 2142HPEF = Enlarged flange type .............................................. 21TCT = Bootflex convoluted tubing/protective covers ............... 23

Carcassmetal

reinforcing

Tube

Expansionjoint flange

Carcass fabricreinforcing

Matingflange

Cover

Controlrod

Split metalretaining

ring

Accessories


Page 34

TM20 EXTRA WIDE ARCH

How to Order Thorburn TM20 Joints

Model # Size (in.) Material Codes Rings ControlNumber ID x Tube Cover R= Rings Rod

Length Blank = None Number

TM20 16x8 D C R CR2

Note: To order special materials, lengths, multitube, filled arches, seeMighty-Spool ordering system on page 33 for details.

(1): Other elastomers available in hand-built design. Call Thorburn withyour specific requirement at 1-800-363-6613 or fax at 514-695-8716.

Type of Elastomer(1) MaximumRubber operatingcodes Tube Cover Temp. (F.)

EE Butyl Butyl 250ºHH EPDM EPDM 250ºFC Hypalon Neoprene 212ºCC Neoprene Neoprene 225ºDC Nitrile Neoprene 225º

Thorburn TM20 elastomeric ordering codes

Twice the movement in a compact designThorburn’s model TM20 has twice the movement capabili-ties with all the advantages and none of the disadvantagesfound in the spherical and spool type designs, Thorburn isproud to introduce its new and improved model TM20 extrawide arch double movement expansion joints, combiningthe best features found in the spherical and the traditionalspool arch designs, making an expansion joint system thatwill outperform them both.

Thorburn’s TM20 advantages■ Greater movements: The TM20 utilizes the spherical long

flowing arch for twice the movements, when compared to thenarrow high arch of the spool-type design. Self flushing, TM20 isgreat for slurries and reduces turbulence; eliminating the need fora filled arch.

■ Easier sealing: The TM20 design utilizes the full-faced rubber/fabric flange of the spool-type joint for a quick and sure seal at theflange when compared to the small lip seal of the spherical design.

■ Less cost: Thorburn’s TM20 has a moulded composite design andas such has a lower cost than our traditional mighty spool hand-built joints.

Extra wide archTM20

TraditionalNarrow Spool

Arch

Typical Thorburn TM20 market applications

■ Pulp and paper white water piping systems■ Waste water and sewage treatment plants■ Shipboard marine piping■ Air conditioning and ventilating systems

NEW AND

IMPROVED

SteelRetainingRing

SteelRetainingRing


Page 35

EXTRA WIDE ARCH MODEL TM20 SPECIFICATIONS

Expansion joint flangedimensions

Thorburn TM20Retaining ring

TM20 expansion joint assembly withcontrol rod unit

Con

trol

Rod

Bol

t Circ

le

Fla

nge/

Ret

aini

ng R

ing

O.D

.

Bol

t Circ

le

Nom

inal

Pip

e S

ize

Join

t I.D

.


Ring

RubberWasher

StandardPipe

Flange


SteelWasher

Extra wide arch ThorburnModel TM20

1 x 61.25 x 61.50 x 62 x 62.5 x 63 x 6

3.5 x 64 x 65 x 66 x 68 x 68 x 8

10 x 812 x 814 x 816 x 818 x 820 x 8

22 x 1024 x 1026 x 1028 x 1030 x 1036 x 10

(1) The amount of angular movement is based on the maximum allowable extension movement from neutral. Angular movement can be increased if it is inconjunction with compression movement.

(2) Torsional movement is expressed when the expansion joint is at neutral length.(3) To determine end thrust: multiply thrust factor by operating pressure of system. This total is end thrust in PSIG.(4) Pressure rating is based on 180oF operating temperature. At higher temperatures, the pressure rating is slightly reduced. Minimum burst pressure is 4:1.(5) Dimensions shown are in accordance with 125/150# standards of: ANSI B-16.1, B-16.24, B-16.5; AWWA C-207 Table 1 and 2 Class D. Other dimensions

and drilling available upon request.(6) Higher positive and negative pressure ratings available upon request. (7) Special hand-built multi-extrawide arch for greater movement available upon

request.(8) Larger sizes, off sizes available upon request.

Exp

ansi

on jo

int s

ize

I.D. x

Len

gth

(in.)

5.05 - 6.365.05 - 6.365.05 - 6.364.94 - 6.474.94 - 6.474.94 - 6.47

4.94 - 6.474.94 - 6.474.94 - 6.534.94 - 6.594.94 - 6.596.94 - 8.59

6.35 - 8.716.35 - 8.776.35 - 8.776.35 - 8.836.35 - 8.836.35 - 8.83

8.35 -10.838.03 -10.838.03 -11.008.03 -11.008.03 -11.008.03 -11.00

Min

imum

Len

gth

Com

pres

sed

Max

imum

Len

gth

Ext

ende

d

Maximumtotal travel ofinstalled joint

.95

.95

.951.061.061.06

1.061.061.061.061.061.06

1.651.651.651.651.651.65

1.651.971.971.971.971.97

.36

.36

.36

.47

.47

.47

.47

.47

.53

.59

.59

.59

.71

.77

.77

.83

.83

.83

.83

.831.001.001.001.00

.44

.44

.44

.59

.59

.59

.59

.59

.66

.74

.74

.74

.89

.96

.961.031.031.03

1.031.031.131.131.131.13

35.8o

29.9o

25.7o

25.2o

20.6o

17.4o

15.1o

13.2o

12.0o

11.1o

8.4o

8.4o

8.1o

7.3o

6.3o

5.9o

5.3o

4.8o

4.3o

3.9o

4.4o

4.1o

3.8o

3.2o

3o

3o

3o

3o

3o

3o

3o

3o

3o

3o

3o

3o

3o

3o

2o

2o

1o

1o

1o

1o

1o

1o

1o

1o

3.744.645.65

10.0413.0416.43

20.2324.4136.0149.8778.0578.05

120.03166.48215.36276.29338.36407.70

481.33562.25649.45742.93904.561252.68

220220220200200200

200200200200180180

150150130110110110

10010090909080

262626262626

262626262626

262626262626

262626262626

1.61.61.82.83.14.3

5.36.36.58.0

10.814.4

18.525.026.834.337.445.6

57.561.868.875.883.0125.0

1.82.32.33.14.54.9

6.36.47.37.9

12.112.1

14.821.823.827.929.532.8

34.042.444.555.057.379.3

4.254.6255.06.07.07.5

8.59.010.011.013.513.5

16.019.021.023.525.027.5

29.532.0

34.2536.5

38.7546.0

3.1253.5

3.8754.755.56.0

7.07.58.59.5

11.7511.75

14.2517.018.7521.2522.7525.0

27.2529.531.7534.036.042.75

444444

888888

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(6)(7)Flange Dimensions and DrillingNon-Concurrent Movement Capability: From

Neutral Position

.625

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.75

.75.875.875.875.875

1.01.0

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1.3751.3751.3751.3751.3751.625


Page 36

Thorburn is proud to introduce its precision engineeredmoulded spherical arch expansion joint system. Utilizingtechnology from the tire moulding industry, Thorburn’sspherical arch expansion joints are manufactured withmultiple plies of tire cord fabric encapsulated withsynthetic rubber and moulded in a hydraulic rubberpress under minimum moulding pressures of 1000 psi.The moulds are held between heated platens sovulcanization takes place right on the press.

The materials that are used become fused into aninseparable homogenous mould. The result allows forThorburn’s spherical expansion joints to be constructedwith a lighter wall, achieving higher pressure ratings, alower deflection force, providing greater flexibility andmovement absorption.

This advanced technology has revolutionized the ex-pansion joint industry and positioned Thorburn as apremium world supplier.

PRECISION MOULDED EASY-FLEX SPHERICAL ARCHEXPANSION JOINT SERIES 101 (single sphere flanged),

102 (twin sphere female union coupling)AND 201 (twin sphere flanged)

■ Liquid waste treatment plant■ Drainage system■ Oil and chemical lines

APPLICATIONS■ Cold and hot water supply■ Sea water■ Pump pressure lines■ Compressed air and vacuum line

Typical Thorburn single sphere style 101 expansion joint installation

Easy-Flex Provides Strength and FlexibilityThorburn’s Easy-Flex superior design is inherentlystronger than traditional spool type arch design.Pressure is exerted evenly in all directions and sodistributes these forces evenly over a large area.The streamed line long flowing arch reducesturbulence and allows smooth quiet flow.Thorburn’s Easy-Flex spherical “long flowing”arch design cannot build up. Therefore there is noneed to fill the arch and thus restrict its movements. Typical Thorburn twin sphere style 201 expansion joint installation


Page 37

EASY-FLEX SPHERICAL LONG FLOW ARCH SUPERIOREXPANSION JOINT SYSTEM

EASY-FLEX MOULDEDSPHERICAL DESIGN

WITH LONG FLOW ARCH

TRADITIONAL HAND-BUILT SPOOL ARCHDESIGN WITH NARROW HIGH ARCH

Pipe Size Single Sphere Style 101 Twin Sphere Style 2011” thru 4” 180 135

5” thru 10” 135 135

12” thru 14” 90 90

16” thru 24” 45 45

26” thru 30” 35 35

WARNING: Control units must be installed when pressures (test •design •surge•operating) exceed rating below or piping system is unanchored.

Control Rod Unit applicationsThorburn control rod unit assemblies are factory preset at the maximum allow-able expansion and/or contraction of the connector. They are designed to absorbstatic pressure thrust developed at the expansion joint. When used in this manner,control unit assemblies are an additional safety factor, minimizing possiblefailure of the expansion joint or damage to the equipment.1. Anchored systems: Thorburn control unit assemblies are not required in

piping systems that are anchored on both sides of the expansion joint,provided piping movements are within the rated movements and pressure isless than shown below.

2. Unanchored systems: Thorburn control unit assemblies are always recom-mended in unanchored systems. Additionally, control unit assemblies mustbe used when the maximum pressure exceeds the limit shown or themovement exceeds the rated movement.

3. Spring mounted equipment: Thorburn control unit assemblies are alwaysrecommended for spring mounted equipment.

Advantages to consider whenspecifying Thorburn’s “Easy-Flex”spherical expansion joint systemLess system strainThorburn’s Easy-Flex spherical expansion jointrequires less “force to deflect”, reducing pipingflange equipment stress-strain-damage.Absorbs vibration noise shockThorburn’s Easy-Flex spherical expansion jointsystem is an ideal replacement for sound trans-mitting metallic expansion joints. Sound losesenergy travelling axially through the rubberbellows; water hammer, pumping impulses andwater-born noises are absorbed by the mouldedlightweight thin wall structure.Simplify installation with floating flangesThorburn’s Easy-Flex are designed with floatingflanges permitting easy mating flange bolt holealignment. Thorburn’s easy-flex flanges arefurnished complete with carbon steel plateflanges, plated to prevent corrosion and drilledto ANSI 150# standards. Other drilling standardssuch as ANSI 250/300#, British standard 10,DIN and JIS are readily available.

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RubberWasher


Page 38

EASY-FLEX STYLE 101MOULDED SINGLE SPHERE EXPANSION JOINT SYSTEM

Thorburn Tube Cover MaximumCode XX Operating Temp ºF

EE Butyl Butyl 225º

HH EPDM EPDM 250º

FC Hypalon Neoprene 212º

CC Neoprene Neoprene 225º

DC Nitrile Neoprene 212º

ConstructionItem # Part Materials

1A Tube Rubber

1B Cover Rubber

2 Reinforcement Nylon tire cord

3 Wire Hard spring steel wire

4 Flange Mild steel galvanized, variousdrilling and materials available

XX: Specify rubber code

Higher Pressure andFull Vacuum Joints

Available UponRequest

Call Thorburn Now!

Note 1: Pressure rating is based on 180ºF operating tempera-ture. At higher temperatures the pressure rating is reduced.Contact Thorburn for details.

Note 2: Pressures shown are recommended “operating”. Testpressure is 1.5 times “operating”. Burst pressure is approximate4 times “operating”.

Note 3: Vacuum rating is based on neutral installed length,without external load. Products should not be installed “ex-tended” on vacuum applications.

Note 4: All expansion joints are furnished complete withfloating flanges. Drilling meets 125/150 lb. standards of ANSIB16.1, B16.24, B16.5; AWWA C207 Class D & F; MSS-SP44& 51. For other drilling see page 35. Control units are availableon special order. Add suffix CR2 or CR3, depending on thenumber of rods required.

Note 5: All dimensions are in inches. All weights are in pounds.

Note 6: XX = Elastomer tube/cover type, please specify.

Note 7: To specify style 101 for full vacuum 26” Hg specifyprefix HD.

Model # Size in Material codes Control rodID x Length Tube Cover number

101 2x6 D C CR2

HOW TO ORDER

THORBURN MODEL 101, 2” I.D. X 6” LONG, NITRILETUBE, NEOPRENE COVER, TWO CONTROL ROD UNITS.

ThorburnPart

Number

Size Movement Pressure WeightsNon-Concurrent 82ºC/180ºF

“A”

Nom

inal

Pip

e ID

“F”

Neu

tral

Len

gth

Axi

al C

ompr

essi

on (i

n.)

Axi

al E

xten

sion

(in.

)

Lat

eral

Def

lect

ion

(in.±

)

Ang

ular

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(deg

rees

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Posi

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lbs

101-1-6-XX 1.00 6 0.50 0.38 0.50 15º 225 15” 3.8 3.3101-1.25-6-XX 1.25 6 0.50 0.38 0.50 15º 225 15” 5 3.3101-1.5-6-XX 1.50 6 0.50 0.38 0.50 15º 225 15” 6.1 4.6101-2-6-XX 2.00 6 0.50 0.38 0.50 15º 225 15” 8.9 6.6101-2.5-6-XX 2.50 6 0.50 0.38 0.50 15º 225 15” 12.3 7.6101-3-6-XX 3.00 6 0.50 0.38 0.50 15º 225 15” 14 8.3101-3.5-6-XX 3.50 6 0.50 0.38 0.50 15º 225 15” 17.6 7.4101-4-6-XX 4.00 6 0.75 0.50 0.50 15º 225 15” 18.3 7.4101-5-6-XX 5.00 6 0.75 0.50 0.50 15º 225 15” 22.8 8.3101-6-6-XX 6.00 6 0.75 0.50 0.50 15º 225 15” 26.8 10.4101-8-6-XX 8.00 6 0.75 0.50 0.50 15º 225 15” 40.6 13.4101-10-8-XX 10.00 8 1.00 0.625 0.75 15º 225 15” 56.6 21.3101-12-8-XX 12.00 8 1.00 0.625 0.75 15º 225 15” 83 27101-14-8-XX 14.00 8 1.00 0.625 0.75 15º 150 15” 115 28101-16-8-XX 16.00 8 1.00 0.625 0.75 15º 125 15” 165 26.8101-18-8-XX 18.00 8 1.00 0.625 0.75 15º 125 15” 168 31.4101-20-8-XX 20.00 8 1.00 0.625 0.75 15º 125 15” 170 32.4101-22-10-XX 22.00 10 1.00 0.625 0.75 15º 115 15” 210 34.5101-24-10-XX 24.00 10 1.00 0.625 0.75 15º 110 15” 255 45.5101-26-10-XX 26.00 10 1.00 0.625 0.75 10º 110 15” 305 46.5101-28-10-XX 28.00 10 1.00 0.625 0.75 10º 110 15” 360 51.5101-30-10-XX 30.00 10 1.00 0.625 0.75 10º 110 15” 405 57

Pipe Size Single Sphere Style 1011” thru 4” 1805” thru 10” 13512” thru 14” 9016” thru 24” 4526” thru 30” 35

WARNING: Control units must be installed whenpressures (test •design •surge •operating) exceed ratingbelow or piping system is unanchored.

FOR CONTROL ROD UNITS, SEE PAGES 26 TO 28

42 3

1A

1B

F

Aø


Page 39

EASY-FLEX STYLE 201MOULDED TWIN SPHERE EXPANSION JOINT SYSTEM

Model # Size in Material codes Control rodID x Length Tube Cover number

201 4x9 D C CR2

HOW TO ORDER

THORBURN MODEL 201, 4” I.D. X 9” LONG, NITRILE TUBE,NEOPRENE COVER, TWO CONTROL ROD UNITS.


1A Tube Rubber

1B Cover Rubber

2 Reinforcement Nylon tire cord

3 Wire Hard spring steel wire

4 Flange Mild steel galvanized, various drillingand materials available

5 Arch ring Ductile iron or carbon steel

XX = Elastomer tube/cover type, please specify.

Note 1: Pressure rating is based on 180ºF operating temperature.At higher temperatures the pressure rating is reduced. ContactThorburn for details.

Note 2: Pressures shown are recommended “operating”. Testpressure is 1.5 times “operating”. Burst pressure is approximate4 times “operating”.

Note 3: Vacuum rating is based on neutral installed length,without external load. Products should not be installed“extended” on vacuum applications.

Note 4: All expansion joints are furnished complete withfloating flanges. Drilling meets 125/150 lb. standards of ANSIB16.1, B16.24, B16.5; AWWA C207 Class D & F; MSS-SP44 & 51. For other drilling see page 35. Control units areavailable on special order. Add suffix CR2 or CR3, dependingon the number of rods required.

Note 5: All dimensions are in inches. All weights are inpounds.

Note 6: To specify style 201 for full vacuum 26” Hg specifysuffix HD.

Available size up to 30”!

Thorburn Tube Cover MaximumCode XX Operating Temp ºF

EE Butyl Butyl 225º

HH EPDM EPDM 250º

FC Hypalon Neoprene 212º

CC Neoprene Neoprene 225º

DC Nitrile Neoprene 212º

FOR DETAILS ON CONTROL ROD UNITS, SEE PAGES 26 TO 28

ThorburnPart

Number

Size Movement Pressure WeightsNon-Concurrent 82ºC/180ºF

“A”

Nom

inal

Pip

e ID

“F”

Neu

tral

Len

gth

Axi

al C

ompr

essi

on (i

n.)

Axi

al E

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(in.

)

Lat

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lect

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(in.±

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ular

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(deg

rees

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g

Join

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Con

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t & R

odSe

t App

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lbs

201-1.5-7-XX 1.5 7 2.00 1.25 1.50 40º 225 15” 6 4.0201-2-7-XX 2.0 7 2.00 1.25 1.50 40º 225 15” 9 6.0201-3-7-XX 3.0 7 2.00 1.25 1.50 40º 225 15” 15 7.5201-4-9-XX 4.0 9 2.00 1.25 1.50 30º 225 15” 20 7.5201-5-9-XX 5.0 9 2.00 1.25 1.50 30º 225 15” 25 8.0201-6-9-XX 6.0 9 2.00 1.25 1.50 30º 225 15” 30 12.0201-8-13-XX 8.0 13 2.25 1.25 1.38 30º 225 15” 45 15.0201-10-13-XX 10.0 13 2.50 1.38 1.38 30º 225 15” 65 25.0201-12-13-XX 12.0 13 2.50 1.38 1.38 30º 225 15” 95 27.0201-14-13.75-XX 14.0 13.75 1.75 1.00 1.00 20º 150 15” 130 28.0201-16-13.75-XX 16.0 13.75 1.75 1.00 1.00 20º 125 15” 170 29.0201-18-13.75-XX 18.0 13.75 1.75 1.00 1.00 20º 125 15” 175 34.0201-20-13.75-XX 20.0 13.75 1.75 1.00 1.00 20º 125 15” 180 35.0201-24-13.75-XX 24.0 13.75 1.75 1.00 1.00 20º 110 15” 285 47.5201-28-12-XX 28.0 12 1.75 1.00 1.00 20º 110 15” 375 52.7201-30-12-XX 30.0 12 1.75 1.00 1.00 20º 110 15” 420 58.0

Pipe Size Twin Sphere Style 2011” thru 4” 135

5” thru 10” 135

12” thru 14” 90

16” thru 24” 45

26” thru 30” 35

WARNING:Control units must be installedwhen pressures (test •design •surge•operating) exceed rating below or pipingsystem is unanchored.


Page 40

OPTIONALFLANGE

DRILLING

ThorburnSeries 201

ThorburnSeries 101

1 0.63 4.88 3.5 4 0.75 0.59 4.5 3.25 4 0.62 0.63 4.53 3.35 4 0.55 0.59 4.92 3.54 4 0.7525 16 124 88.9 4 19.1 15 114 82.6 4 15.9 16 115 85 4 14 15 125 90 4 19

1.25 0.63 5.25 3.88 4 0.75 0.59 4.75 3.44 4 0.62 0.63 5.51 3.94 4 0.71 0.59 5.31 3.94 4 0.7532 16 133 98.4 4 19.1 15 121 87.3 4 15.9 16 140 100 4 18 30 135 100 4 191.5 0.63 6.12 4.5 4 0.88 0.59 5.25 3.88 4 0.62 0.63 5.91 4.33 4 0.71 0.59 5.51 4.13 4 0.7540 16 156 114.3 4 22.2 15 133 98.4 4 15.9 16 150 110 4 18 30 140 105 4 192 0.71 6.5 5 8 0.75 0.63 6 4.5 4 0.75 0.71 6.5 4.92 4 0.71 0.63 6.1 4.72 4 0.7550 18 165 127 8 19.1 16 152.01 114.3 4 19.1 18 165 125 4 18 16 155 120 4 192.5 0.71 7.5 5.88 8 0.88 0.71 6.5 5 4 0.75 0.71 7.28 5.71 4 0.71 0.71 6.89 5.51 4 0.7565 18 191 149.2 8 22.2 18 166 127 4 19.1 18 185 145 4 18 18 175 140 4 193 0.79 8.25 6.62 8 0.88 0.71 7.25 5.75 4 0.75 0.79 7.87 6.3 8 0.71 0.71 7.28 5.91 8 0.7580 20 210 168.2 8 22.2 18 184 146.1 4 19.1 20 200 160 8 18 18 185 150 8 193.5 0.79 9 7.25 8 0.88 0.71 8 6.5 8 0.75 — — — — — 0.71 7.68 6.3 8 0.7590 20 229 184.2 8 22.2 18 203 165.1 8 19.1 — — — — — 18 195 160 8 194 0.79 10 7.88 8 0.88 0.71 8.5 7 8 0.75 0.79 8.66 7.09 8 0.71 0.71 8.27 6.89 8 0.75

100 20 254 200 8 22.2 18 216 177.8 8 19.1 20 220 180 8 18 18 210 175 8 195 0.87 11 9.25 8 0.88 0.79 10 8.25 8 0.75 0.087 9.84 8.27 8 0.71 0.79 9.84 8.27 8 0.91

125 22 279 235 8 22.2 20 254 209.6 8 19.1 22 250 210 8 18 20 250 210 8 236 0.87 12.5 10.62 12 0.88 0.87 11 9.25 8 0.88 0.87 11.22 9.45 8 0.87 0.87 11.02 9.45 8 0.91

150 22 318 269.9 12 22.2 22 279 235 8 22.2 22 285 240 8 22 22 280 240 8 238 0.95 15 13 12 1 0.87 13.25 11.5 8 0.88 0.87 13.39 11.61 8 0.87 0.87 12.99 11.42 12 0.91

200 24 381 330.2 12 25.4 22 337 292.1 8 22.2 22 340 295 8 22 22 330 290 12 2310 1.02 17.5 15.25 16 1.13 0.95 16 14 12 0.88 1.02 15.55 13.78 12 0.87 0.95 15.75 13.98 12 0.98

250 26 445 387.4 16 28.6 24 406 355.6 12 22.2 26 395 350 12 22 24 400 355 12 2512 1.02 20.5 17.75 16 1.25 0.95 18 16 12 1 1.02 17.52 15.75 12 0.87 0.95 17.52 15.75 16 0.98

300 26 521 450.9 16 31.8 24 457 406.4 12 25.4 26 445 400 12 22 24 445 400 16 2514 1.1 23 20.25 20 1.25 1.02 20.75 18.5 12 1 1.1 19.88 18.11 16 0.87 1.02 19.29 17.52 16 0.98

350 28 584 514.4 20 31.8 26 527 469.9 12 25.4 28 505 460 16 22 26 490 445 16 2516 1.18 25.5 22.5 20 1.38 1.1 22.75 20.5 12 1 1.18 22.24 20.28 16 1.02 1.1 22.05 20.08 16 1.06

400 30 648 571.5 20 34.9 28 578 520.7 12 25.4 30 565 515 16 26 28 560 510 16 2718 1.18 28 24.75 24 1.38 1.18 25.25 23 16 1 1.18 24.21 22.24 20 1.02 1.18 24.41 22.24 20 1.06

450 30 711 628.7 24 34.9 30 641 584.2 16 25.4 30 615 565 20 26 30 620 565 20 2720 1.18 30.5 27 24 1.38 1.18 27.75 25.25 16 1 1.18 26.38 24.41 20 1.02 1.18 26.57 24.41 20 1.06

500 30 775 685.8 24 34.9 30 705 641.4 16 25.4 30 670 620 20 26 30 675 620 20 2722 1.18 33 29.5 24 1.38 1.18 30 27.5 16 1.13 1.18 38.74 26.57 20 1.18 1.18 29.33 26.77 20 1.3

550 30 838 743 24 34.9 30 762 698.5 16 28.6 30 730 675 20 30 30 745 680 20 3324 1.18 36 32 24 1.62 1.18 32.5 29.75 16 1.25 1.18 30.71 28.54 20 1.18 1.18 31.3 28.74 24 1.3

600 30 914 812.8 24 41.3 30 826 755.7 16 31.8 30 780 725 20 30 30 795 730 24 3326 1.26 38.25 34.5 28 1.75 — — — — — 1.26 32.87 30.75 24 1.18 1.26 33.27 30.71 24 1.3

650 32 972 876 28 44.5 — — — — — 32 835 780 24 30 32 845 780 24 3328 1.26 40.75 37 28 1.75 — — — — — 1.26 32.24 33.07 24 1.18 1.26 35.63 33.07 24 1.3

700 32 1035 940 28 44.5 — — — — — 32 895 840 24 30 32 905 840 24 3330 1.26 43 39.25 28 2 1.26 39.25 36.5 20 1.38 1.26 37.99 35.43 24 1.3 1.26 38.19 35.43 24 1.3

750 32 1092 997 28 50.8 32 997 927.1 20 34.9 32 965 900 24 33 32 970 900 24 33

NominalPipe SizeIn./mm. Fl

ange

Wid

th

Flan

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.D.

Bol

tC

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e

# H

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Hol

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iam

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Flan

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Bol

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# H

oles

Hol

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iam

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Flan

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Flan

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Bol

tC

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# H

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Hol

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iam

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Flan

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idth

Flan

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.D.

Bol

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# H

oles

Hol

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iam

eter

American 250/300 #Conforms to ANSI B16.1

and B16.5

British Standard 10:1962Conforms to B.S. 10 Table E

(Other tables on request)

Metric SeriesConforms to ISO 2084-1974

Table NP-10(Holes to ISO/R-273)

J.I.S. Standard B-2212Conforms to J.I.S. 10KG/CM


Page 41

XX: Suffix material code. Please note Model 102HP is a special and please check delivery before ordering.

EASY-FLEX STYLE 102/102-HPTWIN-SPHERE FEMALE METAL THREADED

UNION RUBBER CONNECTORS

■ Easy to install■ Absorbs pipe wall and fluid borne noise■ Reduces system stress and strain / Compensates for misalignment■ Prevents electrolysis and electrolytic corrosion■ Isolates vibration and motion

Note 1. All standard styles furnished complete withgalvanized ductile iron female unions, with endsthreaded NPT (IPT) to ANSI B-2.1. For other materi-als, see above table. Other threading, including: BS,DIN, JIS, etc. are available on special order.

Note 2. This floating flange design can be furnishedwith bolt-on flange adaptors to connect to: coppertubing, threaded brass or PVC and cementable PVC,piping. Call Thorburn for details: 1-800-363-6613.

Easy-Flex Style 102 with screwed on female unions

Bolt-on Flange withAdapter for Connecting

to Copper or PVCavailable upon request

Available Metal Materials

Suff. Codes toStyle Number for Materials SelectionsScrew On Female Unions • Flanges

Unions

Standard (blank) Ductile Iron, GalvanizedS4 304 Stainless SteelS6 316 Stainless SteelB Bronze

Pressure

Maximum Operating Minimum

Thorburn Positive Negative Test BurstStyle # PSIG In. of Hg. PSIG PSIG

201 150 26” 225 600

201HP 250 26” 375 1000

Available Elastomer Materials

Material Tube Cover MaximumCode XX Elastomer Elastomer Operating

Temp. ºF

EE Butyl Butyl 250ºHH EPDM EPDM 250ºFC Hypalon Neoprene 212ºCC Neoprene Neoprene 225ºDC Nitrile Neoprene 212º

HOW TO ORDER

102-12HP-DC = 3/4” High pressure female union connectorwith nitrile tube and neoprene cover

To order connector with desired material insert above codeswhere XX is located. Please note that Thorburn’s Model102HP is available in EPDM tube and cover only.

102-12-XX 0.75 8 .87 .23 .87 32.2º 1.06 5.88 1.6102-12HP-XX 7 .75 .23 .63 32.2º 1.06 4.88 1.7102-16-XX 1.00 8 .87 .23 .87 25.3º 1.14 5.72 2.6102-16HP-XX 7 .75 .23 .63 25.3º 1.14 4.72 2.7102-20-XX 1.25 8 .87 .23 .87 20.7º 1.26 5.48 3.3102-20HP-XX 7 .75 .23 .63 20.7º 1.26 4.48 3.4102-24-XX 1.50 8 .87 .23 .87 17.5º 1.30 5.40 4.0102-24HP-XX 7 .75 .23 .63 17.5º 1.30 4.40 4.1102-32-XX 2.00 8 .87 .23 .87 13.3º 1.42 5.16 5.5102-32HP-XX 7 .75 .23 .63 13.3º 1.42 4.16 5.6

Styles • Sizes • Movements • Dimensions • WeightsAllowable Movement Dimensions Weight

from Neutral (lbs.)

ThorburnPart

Number

Nom

inal

Pipe

Siz

e

“F”

Ove

rall

Len

gth

In. o

f Axi

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on

In. o

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of F

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“B”

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OverallLength

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Thorburn’s Model 102 standard union connector comes withcontrol cables for added protection and to prevent over-extending

leakage during start-up

Available in limited rubbers.


Page 42

Thorburn’s Elbow-Flex connectors completely solve thevibratory directional problem at the pumps or any otherlocation where the piping must make a right angle turn as itleaves the equipment.

ELBOW-FLEX EXPANSION JOINTS SERIES REF/REFR

Thorburn’s spherical 90º elbow combines the basicshape and dimensions of the metal elbow with themovement/sound reduction/vibration absorbingfeatures of a flexible component into one unit

Thorburn’s rubber spherical 90º elbows are designed toreplace metallic or rubber lined elbows used in connectingpiping at a right angle and/or to be connected to operatingequipment such as: pumps, chillers, cooling towers,compressors, blowers, fans, absorption machines.

Thorburn’s problem solving elbow connectors are avail-able in standard series REF and reducing series REFR.

TYPICAL APPLICATIONS

■ Air conditioning, heating and ventilating systems■ Industrial process piping systems■ Power generating plants■ Waste water, water, sewage treatment plants■ Pulp and paper and steel mills■ Marine board piping■ Pollution control system

Typical Thorburn Elbow-Flex connector

When Thorburn rubber elbows are used,the pump foundation need no longer bemade large enough to support the baseelbows and this reduces the cost of thefoundation. Since the piping must beproperly supported from above rather thanrest on the pump foundation, there is abetter chance that the pump foundation canoperate properly. The reduced foundationweight is often important in lightweightequipment rooms as well.

COMPARE THESE ADVANTAGES

■ Absorbs pipe movement/stress■ Reduces system noise■ Isolates mechanical vibration■ Compensates for misalignment or offset■ Eliminates electrolysis■ Protects against start-up surge forces■ Simplifies installation

Piping supportedfrom above

Thorburn single-sphere acceptsmotion in all modes

Reducedfoundation sizeas there is noneed for elbowsupport


Page 43

ELBOW-FLEX EXPANSION JOINTS SERIES REF/REFR

ThorburnStyle REFR

Reducing elbowwith floating

flanges

ThorburnStyle REFStandard mouldedelbow withfloating flanges

Allowable Movements Relative to Stationary EndNominal Pipe MaximumSize x Length Working Horizontal Perpendicular Transverse Angular Approx.Center to Face Pressure Compression/Extension Compression/Extension Lateral Movement Weight

Number I.D. x C/F P.S.I.G. X X’ Y Y’ Z & Z’ ± Degree Pounds

1.25REF3.75-XY 1.25 x 3.75 195 .75 .63 .75 .63 .63 9.5 4.51.5REF4-XY 1.5 x 4 195 .75 .63 .75 .63 .63 8.9 5.42REF-4.5XY 2 x 4.5 175 .75 .63 .75 .63 .63 7.9 8.32.5REF5-XY 2.5 x 5 160 .75 .63 .75 .63 .63 7.1 12.43REF5.5-XY 3 x 5.5 160 .75 .63 .75 .63 .63 6.5 13.14REF6.5-XY 4 x 6.5 160 .75 .63 .75 .63 .63 5.5 18.05REF7.5-XY 5 x 7.5 140 .75 .63 .75 .63 .63 4.8 24.56REF8-XY 6 x 8 125 .75 .63 .75 .63 .63 4.5 30.588REF9-XY 8 x 9 125 .75 .63 .75 .63 .63 4.0 46.8

10REF11-XY 10 x 11 105 .75 .63 .75 .63 .63 3.3 65.812REF12-XY 12 x 12 100 .75 .63 .75 .63 .63 2.9 98.2

Allowable Movements Relative to Stationary EndNominal Pipe MaximumSize x Length Working Horizontal Perpendicular Transverse Angular Approx.Center to Face Pressure Compression/Extension Compression/Extension Lateral Movement Weight

Number I.D. x I.D. x C/F P.S.I.G. X X’ Y Y’ Z & Z’ ± Degree Pounds

3REFR2-XY 3 x 2 x 7.25 160 .75 .63 .75 .63 .63 4.9 14.03REFR2.5-XY 3 x 2.5 x 7.75 160 .75 .63 .75 .63 .63 4.9 15.04REFR3-XY 4 x 3 x 9 160 .75 .63 .75 .63 .63 4.0 19.05REFR4-XY 5 x 4 x 10.25 140 .75 .63 .75 .63 .63 3.5 26.06REFR3-XY 6 x 3 x 11.5 125 .75 .63 .75 .63 .63 3.1 31.06REFR4-XY 6 x 4 x 11.5 125 .75 .63 .75 .63 .63 3.1 32.08REFR5-XY 8 x 5 x 14 125 .75 .63 .75 .63 .63 2.6 48.08REFR6-XY 8 x 6 x 14 125 .75 .63 .75 .63 .63 2.6 49.0

10REFR8-XY 10 x 8 x 16.5 105 .75 .63 .75 .63 .63 2.2 67.012REFR10-XY 12 x 10 x 19 100 .75 .63 .75 .63 .63 1.9 99.0

Thorburn Part

Thorburn Part

X Y = Tube and cover material (see below right)

Note: 1) The amount of angular movement is based on the maximum allowable extension movementfrom neutral. Angular movement can be increased, if it is in conjunction with compression. 2)Pressure rating is based on 180ºF operating temperature. At higher temperatures, the pressure ratingis reduced slightly. Minimum burst pressure is 4.1. 3) Standard flange drilling 150# plated steel.Other drilling patterns and flange materials available upon request.

OPERATING PRESSURES/TEMPERATURESWITH NEOPRENE TUBE AND COVER

80øC/180ºF 225 PSI90ºC/195ºF 180 PSI95ºC/205ºF 150 PSI

100ºC/212ºF 145 PSI105ºC/225ºF 125 PSI

OPERATING CONDITIONSOperating pressure: 1475 KPA/214PSI

Burst pressure 5900 KPA/850PSI

Vacuum rating: 750 mm/30” Hg

Temperature: -10ºC to 105ºC

Tube and Cover Type of ElastomerMaximum Rated

Thorburn Tube Cover Operating PressureMaterial Codes Outside Inside Temperature

AC Natural Neoprene 180ºFDC Nitrile Neoprene 212ºFCC Neoprene Neoprene 225ºFFC Hypalon Neoprene 212ºFHH EPDM EPDM 250ºFEE Butyl Butyl 250ºF

MATERIAL CODES


Page 44

WARNING: Control unit cable or rod assembly usage: Thorburn control units are designed to protect Thorburn 60RPC connector from excessive elongation.Control rods are always recommended as a protection against: 1) thermal shrinkage in the piping, 2) hydrostatic tests at elevated pressures and 3) line pressuresurges. Thorburn control rods must be used: 1) when the piping containing the rubber connector is not anchored and 2) when the rubber connector is attachedto unsupported pipe or equipment.

FLANGED PUMP CONNECTORMODEL 60RPC

Cross sectional view of flanged type flexiblerubber connector

Ultra Quiet Sound Absorbing SystemThorburn’s 60RPC is an ultra quiet sound absorbing integral flanged pipeconnector. The flange is drilled to conform to the bolt pattern of thecompanion metal flanges of the pipeline. Thorburn’s 60RPC is manufac-tured from high quality elastomers to safely satisfy your chemical-abrasion-sound requirements. Specify Thorburn’s 60RPC and you areassured of the highest quality leak tight sound and movement absorbingpump connector system in the world.

• Reduce system stress and strainRigid attachment of piping to critical or mechanical equipment canproduce excessive loading. Thermal or mechanically createdstrains-stress-shock are cushioned and absorbed with the installa-tion of Thorburn 60RPC.

• Full flow with less turbulence or materialentrapmentThorburn’s 60RPC connectors’ smooth rubber lining allows fullflow without turbulence. Metallic connectors depend upon bellowsor convolutions to absorb motion. These bellows/convolutionscan create flow turbulence and also create an area for materialentrapment or bacteria growth.

THORBURN’S NEW SOUNDSENSITIVE ACOUSTICAL

CONTROL CABLES

TRADITIONAL CONTROLROD ASSEMBLY

Acoustical control cable assemblies are recommended for vibrationin noise sensitive applications.

• Absorbs pipe wall and fluid-borne noiseThe low sound transmission properties of rubber allow for pipe wall sounds to be absorbed by Thorburn’s 60RPCconnector by the volumetric expansion (breathing of Thorburn’s 60RPC connector). In other words, sound weakenstravelling through rubber. Thorburn’s 60RPC length influences sound absorption. See specifications on page 45 foroptimum length details.

• Isolates vibration and motionVibration originating from mechanical equipment is absorbed by Thorburn’s 60RPC connectors. As most machineryvibrates in a radial direction from the main shaft, Thorburn’s 60RPC should be installed horizontally and parallel tothis main shaft. Thorburn’s 60RPC will tolerate minimal axial motion. But for two-plane vibration/motion, it isrecommended to use two flexible rubber connectors installed at right angles, one to absorb the horizontal vibrationand one the vertical vibration. A tension anchor is usually needed to stabilize the elbow between the connectors.

• Piping system misalignment compensationInstallation in a rigid piping system is facilitated and Thorburn’s 60RPC connectors add a flexible component that isautomatically self correcting for misalignment created by structural movements caused by thermal expansion orground shifts. See page 40 for product specification details.

THORBURN’S 60RPC ADVANTAGES

NEW

Helical WireReinforcement Tube

Split RetainingRings

FabricReinforcement

Steel Washer

“HAW” WasherSystem

Control Cable Plate

Plow Steel CableSteel Washer

Rubber Washer

Control Rod Plate

Tie Rod

ACOUSTICAL CONTROL CABLESMODEL “TACC”

CONTROL RODSMODEL “CR”


Page 45

FLANGED PUMP CONNECTOR MODEL 60RPCQUIET PIPING SYSTEM

Now available withvirgin teflon lining for

the ultimate in chemicalcompatibility

Sizes up to 48” I.D. by50’ long

Notes: * 1: For optimum noise and vibration absorption, use thisor longer length

2: The degree of angular movement is based on themaximum rated extension

3: Larger I.D. or length sizes available

1.972.961.772.661.582.363.151.392.092.781.181.772.362.96.98

1.481.972.461.181.581.97.89

1.181.48.89

1.181.48.89

1.12.89

1.12.71.89

1.42.63.79

1.26.47.59.95.47.59.95.47.95.24.48.24.48

21.831.017.725.614.020.626.611.316.721.89.1

13.517.719.87.0

10.513.815.58.5

11.312.77.6

10.111.36.89.1

10.27.38.26.16.83.44.06.82.73.25.52.32.74.22.02.33.91.73.41.53.11.42.7

12*18

12*18

12*1824

12*1824

12*182430

12*182430

18*2430

18*2430

18*2430

24*30

24*30

24*3048

24*3048

24*3048

24*3048

24*48

24*48

24*48

.158

.236

.158

.236

.158

.236

.315

.158

.236

.315

.158

.236

.315

.354

.158

.236

.315

.354

.236

.315

.354

.236

.315

.354

.236

.315

.354

.315

.354

.315

.354

.236

.276

.472

.236

.276

.472

.236

.276

.472

.236

.276

.472

.236

.472

.236

.472

.236

.472

In. o

f Axi

alC

ompr

essi

on/e

xt.

± In

. of L

ater

alD

efle

ctio

n

± A

ngul

arD

efle

ctio

n(2)

2.43.23.34.24.05.06.04.35.46.55.66.88.09.26.98.29.5

10.010.611.714.612.214.717.214.517.419.720.123.124.127.235.740.259.448.759.092.066.581.0126.0108.0133.0208.0153.0294.0205.0394.0270.0519.0

Movement CapabilityFrom Neutral

3/4

1

1 1/4

1 1/2

2

2 1/2

3

3 1/2

4

5

6

8

10

12

14

16

18

20

Nom

inal

Pip

eSi

ze: P

ipe

I.D.

“F”

Nat

ural

Len

gth

“Fac

e-to

-Fac

e”(1

)

App

roxi

mat

e Wei

ght/L

bsC

onne

ctor

Onl

y

1.5

1.9

2.4

2.6

3.6

5.3

5.6

6.5

7.3

7.9

9.1

14.0

17.0

24.1

26.8

32.1

30.6

35.9

Ret

aini

ng R

ing

Set

Wei

ght i

n pd

s

Product Length Pressure Material Code*Part Code Inches Code Tube / Cover Rings

60RPC160 24 SP D C R

HOW TO ORDER THORBURN’S 60RPC FLANGED CONNECTORS

If required temperature is greater than 180ºF, please specifyAlso available with metallic plated steel floating flanges

125/150# Flange Dim.1Pipe - Rings - Rods

3.884.254.625.006.007.007.508.509.00

10.0011.0013.5016.0019.0021.0023.5025.0027.50

Flan

geO

.D.

2.753.123.503.884.755.506.007.007.508.509.50

11.7514.2517.0018.7521.2522.7525.00

Bol

tC

ircl

e

4 - .6254 - .6254 - .6254 - .6254 - .7504 - .7504 - .7508 - .7508 - .7508 - .8758 - .8758 - .875

12 - 1.00012 - 1.00012 - 1.12516 - 1.12516 - 1.25020 - 1.250

# H

oles

Size

of H

oles

60RPC-1260RPC-1660RPC-2060RPC-2460RPC-3260RPC-4060RPC-4860RPC-5660RPC-6460RPC-8060RPC-96

60RPC-11660RPC-16060RPC-19660RPC-22460RPC-25660RPC-28860RPC-320

Nom

inal

Pip

eSi

ze: P

ipe

I.D.

3/41

1 1/41 1/2

22 1/2

33 1/2

4568

101214161820

Tho

rbur

nPa

rt N

umbe

r

PipeDimensions

.591

.591

.591

.591

.591

.591

.591

.591

.591

.591

.591

.591

.787

.787

.787

.787

.8751.000

“A”

Flan

geT

hick

ness

.472

.551

.551

.551

.551

.591

.591

.669

.669

.669

.709

.787

.866

.984

.984

.9841.0001.000

“B”

Bod

yT

hick

ness

150150150150150150150150150150150150150150125100100100

Styl

eSP

Oper. Press.Positive

psig

Styl

eH

P300300300300250250250250250250250250250250200150150150

Note 1: Dimensions shown meet 125/150# standards of: ANSI B-16.1, B-16.24, B-16.5; AWWAC-207 Table 1 and 2, Class D; MSS SP-44 and NBS/PS 15-69.

2: Other flange drilling and dimensions available upon request.3: Vacuum rating is 30” hg. in all cases. Pressure rating is based on 180ºF operating

temperature. For higher temperatures pressure might be reduced. Contact Thorburn.

Code Tube Cover Max. Oper.Temp.

EE Butyl Butyl 250ºFJE Teflon Butyl 250ºFHH EPDM EPDM 250ºFBC Gum Neoprene 180ºFFC Hypalon Neoprene 212ºFCC Neoprene Neoprene 225ºFDC Nitrile Neoprene 212ºF

Material Codes

NEW

Flang

e & R

et. R

ing O

.D.No

mina

l Pipe

Size

Join

t I.D

.

SteelRetainingRing


Page 46

ULTRA-QUIET SMALL DIAMETER COUPLED PIPE CONNECTORS

Thorburn’s 660PC (150 psi) and 760PC (250 psi) rubber pipeconnectors are designed for smaller diameter pipelines andcome with factory attached couplings and are usually suppliedwith male/male couplings but are also available with male/female fittings. Thorburn’s 660PC are specifically designedto eliminate vibration between pump and pipeline either forsuction or discharge service.

Standard StandardPipe Size Overall Pipe Size Overall

I.D. (in.) - Code Length (in.) - Code I.D. (in.) - Code Length (in.) - Code

3/4 12 12 012 2 32 24 0241 16 18 018 2 1/2 40 24 24

1 1/4 20 18 018 3 48 36 0361 1/2 24 18 018 4 64 36 036

STANDARD DIMENSIONS FOR VIBRATION

Model #

660/760PC(T)-12660/760PC(T)-12660/760PC(T)-12660/760PC(T)-12

Thorburn’s 660PC coupled type rubber pipe connector with female end

PRODUCT SPECIFICATIONS

Maximum WaterWorking Pressure Service Temperature

Model (psi) (ºF)

660PC 150 180660PCT 150 250760PC 250 180

760PCT 250 250

Model Size I.D. Code First End Material Second End Material Length

760PCT 24 MPS6 MPS6 018

End CodesMale NPT = MPFemale NPT = FPSpecial = XX

Material CodesAluminium = ACarbon Steel = C316SS = S6Other Specify = 0

HOW TO ORDER THORBURN COUPLED RUBBER PIPE CONNECTORS

T = High temperature

Part number description for Thorburn’s Coupled Pipe ConnectorsHigh Temperature Model 760PCT

Overall LengthF

C BA

ID ofpart


Page 47

PAPER MILL SUCTION COUCH MODEL 28TW(accordion type)

Min. BendRadiusHose I.D. Hose O.D. Appr. Weight

ThorburnPart in. in. in. Lbs/

Number 100 ft

28TW32 2 2-11/16 4 28328TW38 2-3/8 3-1/16 5 32028TW46 2-7/8 3-9/16 6 35528TW48 3 3-3/4 6 36728TW56 3-1/2 4-1/4 7 40828TW64 4 4-5/8 8 44128TW66 4-1/8 4-3/4 8 46228TW68 4-1/4 4-7/8 9 47928TW72 4-1/2 5-1/8 9 50628TW80 5 5-5/8 10 54728TW80 5-1/4 6-1/8 11 58528TW84 5-9/16 6-3/16 11 58928TW89 6 168 12 62228TW96 6-1/4 181 13 662

28TW100 6-5/8 7-1/4 13 66528TW106 8 8-5/8 16 79328TW128 8-1/4 8-7/8 17 81828TW136 8-1/2 9-1/8 17 83228TW138 8-5/8 9-1/4 17 84028TW140 8-3/4 9-3/4 18 88628TW160 10 10-5/8 20 95728TW164 10-1/4 10-7/8 20 97928TW168 10-1/2 11-1/2 21 100928TW172 10-3/4 11-3/8 21 101928TW192 12 12-5/8 24 111928TW224 14 15 28 172928TW256 16 17 32 1902

SPECIAL NOTE

For custom tube, cover andend configurations see page

51 for hose assemblyordering information.

APPLICATIONThorburn's 28TW is a custom designed materialhandling hose that supports full vacuum suctionwith incredible minimum bend radius capabilities.Thorburn's 28TW will accept a high degree oflateral flexing as well as contraction due to endthrust. The 28TW is an ideal flexible componentfor services that require the suction box on papermachine to be raised or lowered.

CONSTRUCTIONTube: Corrugated black synthetic rubber.Reinforcement: Polyester fibre wire. Reinforcedfor full vacuum.Cover: Black synthetic corrugated rubber.

OTHERSSOFT CUFF, FLANGED, BEADED OR SPECIAL ENDS

Smooth bore type also available. Specify128TW. Flexibility will be reduced by 25%to 40%.

FOR ORDERING DETAILS, SEE PAGE 51

TECHNICAL SPECIFICATIONS

INCREDIBLE

FLEXIBILITY


Page 48

FLEXIPIPE (Wire-reinforced) 60TMHCustom built flexible piping connectors

APPLICATIONThorburn Flexipipe is a custom designed rubber piping system that replaces metalpipe and is used in lines requiring resistance to electrolysis, corrosion, abrasion andwater hammering. Thorburn Flexipipe is also specifically engineered for pipingsystems that require isolation and absorption of severe noise, vibration, misalignment,lateral deflection and flexing and/or movements caused by temperature changes.Thorburn Flexipipe can be custom designed and manufactured for piping systems

that require the benefits of moulded rubber elbows with tangents, or tees withvarious radius, multi-branch connections and transition joints. Thorburn Flexipipe's

typical applications are found in mines, quarries, cement plants, petrochemical plants, paper mills,ship building, offshore, sewage treatment plants and high rise heating ventilation systems.

FLEXIPIPE (Non wire-reinforced) 61TMHCustom built flexible piping connectors

APPLICATIONThorburn Flexipipe 61TMH is a heavy duty material handling hosespecifically designed for discharge service. The 61TMH has the ability

to withstand severe shock and abuse without transmitting vibration, and isthe companion hose to 60TMH, with the exception that it is non wire-reinforced.

CONSTRUCTION - 60TMHTube: 60TMH Flexipipe is available with varioustube compounds wall thickness to maximize servicelife and is determined by the application and themedia.

Reinforcement: 60TMH Flexipipe is made of multiplelayers of precisely angled cross woven fabric withcalendared polyester or fibreglass fabric. Flexipipe60TMH is integrally built with an evenly spaced heavyduty helix spring wire that withstands rated workingpressures from full vacuum to 1000 psi. Thorburn

Flexipipe can be designed to support a minimumbend radius from two times the diameter or maintainunsupported rigidity over long length. Please callThorburn for details.

Cover: Flexipipe is available with various covercompounds and wall thicknesses to maximize servicelife and is determined by the application.

Sizes: 1/2" to 30" I.D. up to 100 feet long. Longerlengths available on special order only.

CONSTRUCTION - 61TMHTube: 61TMH Flexipipe is available with varioustube compounds and wall thicknesses to maximizeservice life and is determined by the applicationand the media.Reinforcement: 61TMH Flexipipe is made ofmultiple layers of precisely angled cross wovenfabric with calendared polyester or fiberglass fabric;withstands rated working pressures to 1000 psi.

Cover: Flexipipe is available with various covercompounds and wall thicknesses to maximize servicelife and is determined by the application.Sizes: 1/2" to 30" I.D. up to 100 feet long. Longerlengths available on special order only.


Page 49

CUSTOM HANDCRAFTED RUBBER PIPE AND FITTINGSFROM 2” TO 30” I.D.

Elbows, tees, laterals, crosses, reducers, transitions

When the good people at Miramichi pulp and paper wanted to redesign their opentrough piping system between the caustizers and slaking tank, Thorburn’sflexible piping design team was called into action. The project involveddesigning, manufacturing and supplying a complete elastomeric piping system.

Thorburn provides flexibility you cancount on

Branch connector or custom transition connectionscan be handled by Thorburn flexible piping design

engineersThorburn can custom design and supply

rubber lateral connectors

Thorburn’s 14” I.D. rubber flexible piping system, consisting of a14” custom rubber long radius elbow connected to rubber flangedtee which is further connected to a 15 plus feet of rubber flangedpiping system.

CUSTOM ELASTOMERIC PIPING SYSTEMS MADE EASYWhen Norsk Hydro Becancour, Quebec, was looking for an economical and practical solution to its extreme abrasionproblem, Thorburn’s flexible piping specialists designed, manufactured and supplied a timely solution with Thorburnrubber piping.

Thorburn’s wire reinforced 60TMHrubber piping system

• Elbows • Tees• Laterals • Transition joints

SPECIALITYITEMS

BRANCH JOINTS, TEES ANDTRANSITION UNITS MADE EASY

BY THORBURN


Page 50

Available in lengths up to 50 feetDiameters up to 48” available

Corrugated cover toimprove flexibility

FLEXIPIPE HOSE ENDS

Soft endCode “SE”

Integral rubbertapered nozzle end

Code “ITN”

Enlarged endCode “EE”

Wire to endCode “WTE”

Integral flange endsCode “IFE”

Beaded ends with splitflanges - Code “BE”

Built-in nipple with flangeCode BINF 150 (300) Specify drillingBuilt-in nipple threaded/Code BIN

Built-in victaulic nippleCode BINFV

Built-in nipple flange Code NLS150

FLEXIPIPE CUSTOM DESIGNED FLEXIBLE PIPINGSee page 51 for ordering details

Teflon lined foradded corrosion

resistency

Capped endCode “PE”

Rubber and duck flangeswith split rings

Code “RDF”

Shown BIN


Page 51

HOW TO ORDER THORBURN FLEXIPIPE ASSEMBLIES

Tube and Cover CompoundsCode A Black natural rubber. Used for abrasive and corrosive materials. 180ºF.Code B Pure gum. Used for abrasive and corrosive materials. 180ºF.Code C Neoprene. Oil resistance good weathering and aging characteristics. 200ºF.Code D Nitrile. Oil resistance excellent tube compound for OS & D service. 225ºF.Code E H3 (Butyl). For temperature conditions up to 250oF.Code F Hypalon. Used for light acids and chemicals. 225ºF.Code G Cross linked polyethylene inert to most acids and chemicals to 150oF*.Code H EPDM used for abrasive and corrosive materials up to 250oF.*Code I Viton inert to most chemicals and acids up to 300oF.*Code J Teflon is inert to aggressive chemicals and acids to 350oF.*Our Flexipipe hoses are manufactured to the latest RMA standards.* When considering using these compounds, contact Thorburn Sales Department with all design

requirements i.e. working temperatures and possibly size production limitation.

Tube and Cover Thickness

Code 01 1/16" tube wallCode 02 1/8" tube wallCode 04 1/4" tube wallCode 06 3/8" tube wallCode 08 1/2" tube wall

Please note teflon lining is typicallyless than 1/8”

Working Pressure CodesCode 25: 25 psi Code 75: 75 psi Code 100: 100 psiCode 150: 150 psi Code 250: 250 psi Code 500: 500 psiCode 1000: 1000 psi

Flexipipe Hose EndsCode PE: plain end; Code SE: soft end; Code BINF300: built-in nipple with 300# flange; Code EE: enlarged end; CodeRDF: rubber and duck flanges; Code BE: beaded end; Code IFE: integral flanged end; Code BIN: built-in nipple threaded;Code BINV: built-in victaulic end; Code BINF150: built-in nipple with 150# flange; Code ITN: integral rubber taperednozzle; Code NLS150: Thorburn's exclusive never leak system; Code WTE: Wire to the end.

How to order straight Flexipipe assembly by part number

(I.D. is always in 1/16”; i.e. 64 = 4” 48 = 3” 128 = 8”)

Hose type Inside diameter Compound Thickness Working Ends Overall lengthinches material inches pressure PSI inches

Tube Cover Tube Cover First Second

60TMH 96 I H 04 02 150 RDF BE 120

Flexipipe 6 inches Viton EPDM 1/4" 1/8" 150 WP Rubber/duck flange 120"x

Beaded end

Example Flexipipe Code Assembly Number 60TMH6IH0402150RDFBE120

To order Thorburn rubber fittings please see pages 52 and 53 for details

Other Models 61TMH Flexi-Pipe non wire-reinforced: see page 4828TW Paper mill suction couch: see page 47128TW Paper mill suction couch smooth tube: see page 47


Page 52

THORBURN’S SPECIAL HANDCRAFTEDRUBBER FITTINGS

90º Long Radius

Tee Connectors

Model 60TMH-EC90

Model 60TMH-T

Custom special

Header Flex

Transition joints and elbowswith various tangents alsoavailable

■ Reduces noise and vibration

■ Protects pump casing

■ Relieves pipe stress and strain

Thorburn’s special handcrafted rubber fittings are strong, rugged andflexible. They will reduce noise and vibration from pumps, compressorsand other equipment and allow for minor misalignment where abrasionor corrosion will damage normal piping. These fittings are custom designedand can be manufactured from various materials. End configurations cansuit any piping applications. Samples are included below.

“Y” Connectors

Concentric reducer

90º Standard Radius

Model 60TMH-E90

Model 60TMH-Y

Model 60TMH-RC

45º Elbow

Cross Connectors

Model 60TMH-E45

Model 60TMH-C

Model 60TMH-EC

Eccentric reducer

NEW


Page 53

JJ

HH

HH HH NN

KKLL LL

MMHH HH

KK

JJHH

Notes 1) For compound codes please see page 512) For thickness codes please see page 513) Flange drilling 150# Standard for other types of drilling #300, DIN,

JIS, British standard, etc., please specify4) When specifying elbows with tangents different radius than shown,

transition joints and multi-branch connectors, please include a sketch5) Special requirements, please specify

FittingModel #

60TMH-C

NominalDiameter

(in.)

10

Compound1

Tube Cover

D C

Thickness (in.)2

Tube Cover

04 02

WorkingPressure

(psi)

150

Ends3

First Second

RDF RDF

Special5

HOW TO ORDER THORBURN’S CUSTOM RUBBER FITTINGS4

THORBURN’S HANDCRAFTEDALL RUBBER FLANGED PIPE FITTINGS

DIMENSION DETAILS

90º elbow Long radiuselbow 45º elbow Tee Cross Lateral Reducer

60TMH-E90

60TMH-E90L 60TMH-E45 60TMH-T 60TMH-C 60TMH-L 60TMH-RC60TMH-EC

DIMENSION DETAILS90º Elbow,

Nominal Pipe Movement Movement Tee, Cross, Long Radius 45º Elbow Lateral Long Lateral Short ReducerSize (in.) Axial Lateral HH (in.) Elbow, JJ (in.) KK (in.) Leg, LL (in.) Leg, MM (in.) NN (in.)

2 0.5 0.5 3 4 3 11 6 152.5 0.5 0.5 4 5 3.5 13 6 153 0.5 0.5 5 6 4 13 6 15

3.5 0.5 0.5 6 8 4.5 15 6 154 0.5 0.5 7 9 5 15 6 155 0.75 0.75 8 10 6 17 7 156 0.75 0.75 9 12 6.5 18 7 158 0.75 0.75 12 15 7.5 22 9 2210 0.75 0.75 14 17 8 25 9 2212 0.75 0.75 17 21 10 30 11 2314 0.75 0.75 19 24 12 32 11 2916 0.75 0.75 22 28 14 35 12 2918 0.75 0.75 26 32 16 37 12 2920 0.75 0.75 30 36 18 43 16 3224 0.75 0.75 34 42 21 49 17 32

Warning: Always include maximummedia temperature, pressure, if steam ispresent or what the media is whenspecifying Thorburn fittings. Otherwise,Thorburn’s warrantee is void.


Page 54

MODEL 42HP TEFLON LINED RUBBER EXPANSION JOINTSQUALITY YOU CAN COUNT ON!

Thorburn’s Model 42HP teflon lined rubber expansionjoints extends beyond the bolt holes to the outside diameterof the flange providing complete protection to the elasto-meric body. This feature will eliminate leaking/weeping

flange failure.

Thorburn Mighty-Spool Model 42HP teflon lined rubber expansionjoints were specifically designed to resist corrosive attack at elevatedtemperatures and pressures where metallic, plastic or elastomericexpansion joints would be inadequate. Thorburn’s 42HP teflon linedexpansion joints are installed next to mechanical equipment or betweenanchor points in your process piping system and will provide thefollowing advantages.

Advantages■ Corrosive resistant/antistick■ Absorbs pipe movement/stress■ Reduces system noise■ Isolates mechanical vibration■ Compensates alignment/offset■ Eliminates electrolytic action and electrolysis■ Protects against start-up/surge forces

MaterialsThorburn’s Model 42HP teflon lined rubber expansion joint tube is custom moulded virgin teflon (PTFE, FEP or PFA). Crystallinity iscarefully controlled, resulting in longer flexible and high tensile strength. In addition, no pigments or additives are used which can leachout and contaminate your process or result in premature failure of the expansion joint.

Shown is a Thorburn 42HP teflon linedrubber expansion joint which was usedin a “white water” piping system whichwas successfully used as a replacement

for a failed competitor’s chlorobutylrubber expansion joint.

■ Waste water-sewage■ Pollution control systems■ Industrial process piping systems■ Pulp and paper industries

ApplicationsThorburn’s Mighty-Spool teflon lined expansion joints have been specificallydesigned for tough demanding corrosive chemical applications that are foundin the following applications:

■ Petrochemical■ Power generating plants■ Steel mills■ Marine services

Mighty-Spool pulp & paper industryThorburn’s Mighty-Spool teflon lined expansion joints have been employed verysuccessfully for years on tough demanding pulp and paper applications, such as white-green-black liquor lines, bleach plant chlorination and caustic extraction piping, wherethe ability to resist corrosive attack at elevated temperatures and pressures would be orwere a problem for traditional metallic, plastic or elastomeric expansion joints.


Page 55

“Face to Face” MinimumRecommended Length

Nom

inal

Pip

e Si

zeE

xp. J

t. I.D

.

Sing

leA

rch

Two

Arc

h

Thr

eeA

rch

Single Arch1 MovementNon-concurrent

In. o

f Axi

alC

ompr

essi

on

In. o

f Axi

alE

xten

sion

In. o

f Lat

eral

Def

lect

ion

Working Pressureat 220ºF/104ºC

11 1/41 1/2

22 1/2

34568

1012141618202224303648607296

66666666668888881010101012121212

121212121212121212141414161616161818181818181818

101010101010101010101212121212121414141414141416

1/21/21/21/21/21/21/21/21/23/43/43/43/43/43/43/43/47/8111

1 1/81 1/81 1/8

1/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/21/2

1/41/41/41/41/41/41/41/4

1/43/83/83/83/83/83/83/83/8

7/161/21/21/21/21/21/2

Vacu

umin

. of H

g.

292929292929292929292929292929292929292929292929

42H

PPS

I

225225225225225225225225225200200200200150150150150150150150100757575

22.534

4.55.589

11152334404756677079117143198309385485

2.32.534

5.56

7.5891218222527293544486691

138200300432

Join

tsi

ngle

arc

h

Ret

aini

ngri

ng se

t

Est. Weight(lbs)

Special notes on movement capability

1) To calculate movement of multiple archtype for compression extension and lateralmovements, take movement shown in theabove table and multiply by the numberof arches.

2) Movement capability shown is non-concurrent percentage used in onemovement position and must be deductedfrom the other movement position so thatsum of movements don’t exceed 100%.

3) Movements shown are based on properinstallation practices.

Special notes on pressures/temperatures4) For higher temperatures of 220ºF/104ºC

pressures might be reduced. Please callThorburn engineering with applicationdetails if MCOT (maximum continuousoperating temperature) exceeds 220ºF/104ºC.

MODEL 42HP MIGHTY-SPOOL TEFLON LINEDRUBBER EXPANSION JOINTS

Thorburn’s teflon linercovers the “flange face”

to prevent leaking/weeping flanges. In

addition, Thorburn’smodel 42HP has no

pigments to leach outand cause failure. When

you want qualityexpansion joints, specify

Thorburn!

Mighty-Spool constructionTube: The tube is a single moulded teflon (TFE, FEP or PFA)leakproof lining extending from flange to flange. The outside ofthe teflon tube is etched to adhere to the elastomeric overlay.Carcass: This is a high strength calendared polyester or Kevlarreinforcing fabric between the teflon tube and the cover.Metallic reinforcement: These are chemically treated solid roundendless rings or high tensile strength helical wire embedded in thecarcass. The metallic reinforcement provides additional strengthfor pressure and vacuum service.Cover: This is the exterior elastomeric overlay designed to pro-tect the carcass from external elements. Available in neoprene,EPDM, viton.

How to order 42HP teflon lined jointsModel Size Arch type Material Retaining Number of Special

ID x F to F Rings Control rods42HP 10 x 8 SO JC R CR2

Special = XSpecify

Tube/Elastomeric Cover Code MCOTTeflon/Neoprene JC 250ºFTeflon/EPDM JH 300ºFTeflon/Viton JI 350ºF

CR(#) = Plated steelCRS4(#) = 304SSCRS6(#) = 316SS

R = Plated steelRS4 = 304SSRS6 = 316SS

Single open SODouble open DOTriple open TO

Special notes: For Spring rate force/pounds, see technical specifications for 42HP on page 16. Standard drilling ANSI B16.1-1975, ANSI B16.24-1991 Class 150#.


Page 56

EASY-FLEX STYLE 101 TEFLON LINEDMOLDED SINGLE SPHERE EXPANSION JOINT SYSTEM

FOR APPLICATIONS REQUIRING ONLY POSITIVE PRESSURE CONTAINMENT

NOTESNote 1: Pressure rating is based on 180ºF operatingtemperature. At higher temperatures the pressurerating is reduced. Contact Thorburn for details.Note 2: Pressures shown are recommended“operating”. Test pressure is 1.5 times “operating”.Burst pressure is approximatly 4 times “operating”.Note 3: Thorburn style 101 teflon joints have aloose fit PTFE liner and are not recommended forvacuum service.Note 4: Floating flanges drilling meets 125/150lbstandards. Control units are available on specialorder. Add suffix CR2 or CR3, depending on thenumber of rods required.Note 5: On some sizes, cover available in EPDM.Contact Thorburn for details.

WARNING: Safety shields must be used atall times in hazardous service.

WARNING: Thorburn control units re-quired always in unanchored piping.Thorburn control units must be installedwhen pressures (test, design, surge, operat-ing) exceed rating below.

Pipe size Pressure1” through 4” 180

5” through 10” 13512” 90

■ Long flowing arch reduces turbulence, sediment build-up

■ Design for positive pressure “only”

■ All wetted parts corrosion resistant teflon lined

■ Floating flanges provide simplified installation

■ Absorbs vibration, noise, shock

■ Absorbs thermal and/or agitated movement

■ Wide service range with low cost

■ Service temperature up to 225ºF


1A Body 1A tube lining teflon1B Body 1B Cover neoprene2 Reinforce Nylon tire cord3 Wire Hard spring steel wire4 Flange Mild steel galvanized,various

drilling and materials available

Thorburn introduces its Easy-Flex style 101spherical arch “Loose fitting” teflon linedexpansion joint system. These elastomericexpansion joints were specifically designedfor positive pressure applications that requirethe corrosion resistance of teflon. Typicallythey are more economical than our Mighty-Spool series and provide an excellent meansto absorb movement, noise, shock andvibration in your piping system.

101-1-5JC 1 5 1 1.3 1 35 225 N/A 3.8 3.2101-1.25-5JC 1.25 5 1 1.3 1 35 225 N/A 5.0 3.2101-1.5-5JC 1.5 5 1 1.3 1 35 225 N/A 5.1 4.5101-2-5JC 2 5 1 1.3 1 35 225 N/A 7.1 6.4101-2.5-5JC 2.5 5 1 1.3 1 30 225 N/A 10.6 7.5101-3-5JC 3 5 1 1.3 1 30 225 N/A 13.3 8.1101-3.5-5JC 3.5 5 1 1.3 1 25 225 N/A 16.0 7.2101-4-5JC 4 5 1 1.3 1 25 225 N/A 16.5 7.2101-5-5JC 5 5 1 1.3 1 25 225 N/A 20.3 8.1101-6-5JC 6 5 1 1.3 1 20 225 N/A 22.6 10.3101-8-5JC 8 5 1 1.3 1 15 225 N/A 35.5 13.2101-10-5JC 10 5 1 1.3 1 10 225 N/A 49.3 21.0101-12-5JC 12 5 1 1.3 1 10 225 N/A 73.4 26.5

“A”

Nom

inal

Pipe

ID

“F”

Neu

tral

Len

gth

Axi

al C

ompr

essi

on(in

.)

Axi

al E

xten

sion

(in.

)

Lat

eral

Def

lect

ion

(in.±

)

Ang

ular

Def

lect

ion

(deg

rees

º ±)

Posi

tive

PSI

Neg

ativ

e In

. of H

g3

Join

t & F

lang

esA

ppro

x. lb

s

Con

trol

Uni

t &R

od S

et A

ppro

x. lb

s

ThorburnPart

Number

Size Movement Pressure Weights82ºC/180ºF

EXAMPLE101-1-5-JC = Style 101, 1” Nominal diameter with a 5” face-to-face,

teflon lined, neoprene cover


Page 57

POWER-FLEXULTRA HIGH QUALITY TEFLON

EXPANSION JOINT SYSTEMPower-Flex teflon expansion joints are used primarily in fluid conducting systems as resilient connectors andtremor barriers. They are designed to compensate for misalignment, to absorb expansion and contraction and toisolate vibration and shock. They are also frequently used to reduce stress on fragile mating flanges.

WARNING

When expansion joints are used, they must not be viewed as a pipingcommodity. They must not be casually specified or arbitrarily dropped into apiping system. Their application requires careful engineering analysis.Expansion joints should never be used to compensate for misalignment unlesssuch misalignment is a calculated basis of design. The safety and operabilityof a Power-Flex teflon expansion joint, like that of any piece of critical processequipment, depends upon proper installation, good operating practice andregular inspection and maintenance.

WHY SPECIFY POWER-FLEX

1) Power-Flex is made from high molecular weight virgin PTFE (polytetrafluoroethylene) resin. Crystallinity is carefully control-led, resulting in a long flex-life and high tensile strength. No pigments, lubricants or additives are used which can leach out andcontaminate your process. Rigid inspection for impurities and inclusions is possible, since any contaminants or liner defect is readilydiscernible against the white PTFE.

2) Uniform wall thickness Power-Flex is isostaticly moulded providing uniform wall thickness for consistent performance.

3) Power-Flex offers “T” bands standard

a) The “T” bands prevent damage from overcompression of the expansion joint be-cause the shoulders of the “T” band will “butt” when the Power-Flex has reached itsmaximum compression limit.

b) The “T” band gives the Power-Flex greater stability, safety, and alonger flex-life because it supportsthe “roots” and the side wall of theconvolution under pressure.

Special note: Teflon is a plastic and as such will “creep” under pressure. Thegreater the pressure, the greater the “creep”, the more the teflon/convolution/side wall will be supported by the Power-Flex “T” band.

4) The cable limit primary function is to prevent overexpansion of thePower Flex when mating flanges are not aligned. Power-Flex allows for theflanges to oscillate without adding stress or affecting expansion joint flexibility.

Universal Power-Flex: Two Power-Flex tied together by aflanged pipe spool in the middle. Gives maximum amountof angular and parallel movement. Substantially reduces

the amount of force (spring rate) required to causemovement.


Page 58

LateralAngularNormal

Special note: Up to 10 convolutions availablefor increased movement capability. ContactThorburn Flexible piping specialist fordetails.

ExpandedContracted

Warning: Safety shields must be used at all times in hazardous service to protect against serious personal injury in the eventof expansion joint failure. Liner sleeves must be used in abrasive service or where sharp-edged solids are or may be present.

Demonstrated MovementPositions for Power-Flex

POWER-FLEXPREMIER TEFLON EXPANSION JOINT SYSTEM

MOVEMENT SPECIFICATIONS

Pressure temperature rating, see page 59Vacuum temperature rating, see page 60

Note: Applications involving combined axial, parallel and angular movement:Design Axial Movement + Design Lateral Movement + Design Angular Movement - 1Max. Allowable Axial Max. Allowable Parallel Max. Allowable Angular

Movement Movement Movement

2 Convolutions 3 Convolutions 4 ConvolutionsSize Normal Plus or Angular Parallel Normal Plus or Angular Parallel Normal Plus or Angular Parallel

Length Minus Axial (º Degree) Length Minus Axial (º Degree) Length Minus Axial (º Degree)

1/2 1 5/8 5/16 19 7/32 2 5/32 15/32 28 11/32 2 11/16 5/8 37 15/32 3/4 1 5/8 5/16 17 7/32 2 3/16 15/32 25 11/32 2 23/32 5/8 34 15/32

1 1 3/4 11/32 16 1/4 2 5/16 1/2 24 3/8 2 29/32 21/32 31 1/21 1/4 1 25/32 11/32 14 1/4 2 3/8 1/2 21 3/8 2 31/32 11/16 28 1/21 1/2 1 13/16 11/32 13 1/4 2 13/32 17/32 20 3/8 3 11/16 26 17/32

2 1 7/8 11/32 12 9/32 2 1/2 17/32 17 13/32 3 1/8 23/32 23 17/322 1/2 2 1/8 13/32 11 5/16 2 13/16 19/32 17 15/32 3 17/32 13/16 22 19/32

3 2 3/16 13/32 10 5/16 2 29/32 5/8 15 15/32 3 5/8 27/32 20 5/84 2 9/32 7/16 9 5/16 3 1/16 21/32 13 1/2 3 13/16 7/8 17 21/325 2 13/32 15/32 8 11/32 3 7/32 11/16 11 17/32 4 1/32 29/32 15 11/166 2 17/32 15/32 7 3/8 3 3/8 23/32 10 17/32 4 3/16 31/32 14 23/328 2 3/4 17/32 6 13/32 3 21/32 25/32 9 19/32 4 19/32 1 1/16 12 25/3210 2 31/32 9/16 5 7/16 3 15/16 27/32 8 5/8 4 15/16 1 1/8 11 27/3212 3 3/16 19/32 5 15/32 4 1/4 29/32 7 11/16 5 5/16 1 7/32 10 29/3214 3 3/8 5/8 5 15/32 4 15/32 31/32 7 23/32 5 19/32 1 9/32 9 31/3216 3 11/16 11/16 5 17/32 4 29/32 1 1/16 7 25/32 6 1/8 1 13/32 9 1 1/1618 4 3/4 4 9/16 5 11/32 1 5/32 7 7/8 6 11/16 1 17/32 9 1 5/3220 4 5/32 25/32 4 19/32 5 17/32 1 3/16 6 29/32 6 15/16 1 19/32 8 1 3/1624 4 21/32 7/8 4 21/32 6 7/32 1 11/32 6 1 7 25/32 1 25/32 8 1 11/3228 5 1/8 1 4 3/4 6 7/8 1 1/2 6 1 1/8 8 9/16 2 8 1 7/1630 5 5/8 1 1/16 4 13/16 7 17/32 1 5/8 6 1 3/16 9 13/32 2 5/32 8 1 5/832 6 1 1/8 4 7/8 8 1 3/4 6 1 5/16 10 1/16 2 5/16 8 1 11/1636 6 5/16 1 1/4 4 15/16 8 7/16 1 27/32 6 1 3/8 10 17/32 2 13/32 8 1 13/1642 7 1 3/8 2 1 9 3/8 2 5 1 1/2 11 11/16 2 11/16 7 2

5 Convolutions 6 ConvolutionsSize Normal Plus or Angular Parallel Normal Plus or Angular Parallel

Length Minus Axial (º Degree) Length Minus Axial (º Degree)

1/2 3 7/32 25/32 45 9/16 3 25/32 15/16 53 11/16 3/4 3 9/32 25/32 41 19/32 3 13/16 15/16 49 11/16

1 3 1/2 27/32 39 5/8 4 1/16 1 45 3/41 1/4 3 9/16 27/32 34 5/8 4 5/32 1 1/32 41 3/41 1/2 3 5/8 7/8 32 21/32 4 7/32 1 1/32 40 25/32

2 3 3/4 7/8 29 21/32 4 3/8 1 1/16 34 13/162 1/2 4 1/4 1 28 3/4 4 15/16 1 7/32 33 29/32

3 4 3/8 1 1/32 25 25/32 5 3/32 1 1/4 30 15/164 4 9/16 1 3/32 21 13/16 5 11/32 1 5/16 26 31/325 4 27/32 1 5/32 19 7/8 5 5/8 1 3/8 23 1 1/326 5 1/32 1 3/16 17 29/32 5 7/8 1 7/16 20 1 3/328 5 1/2 1 5/16 15 31/32 6 13/32 1 9/16 18 1 3/1610 5 15/16 1 13/32 13 1 1/16 6 29/32 1 11/16 16 1 9/3212 6 3/8 1 17/32 12 1 1/8 7 7/16 1 13/16 14 1 3/814 6 23/32 1 19/32 12 1 3/16 7 27/32 1 29/32 14 1 7/1616 7 11/32 1 3/4 11 1 5/16 8 9/16 2 3/32 13 1 9/1618 8 1/32 1 29/32 11 1 7/16 9 11/32 2 9/32 13 1 23/3220 8 5/16 1 31/32 10 1 1/2 9 11/16 2 3/8 12 1 25/3224 9 5/16 2 7/32 10 1 21/32 10 7/8 2 21/32 12 228 10 5/16 2 7/16 10 1 13/16 12 2 15/16 12 2 3/1630 11 5/16 2 11/16 10 2 13 3/16 3 7/32 12 2 7/1632 12 1/16 2 7/8 10 2 3/16 14 1/16 3 7/16 12 2 9/1636 12 5/8 2 27/32 10 2 1/4 14 3/4 3 5/8 12 2 11/1642 14 3 3/8 8 2 1/2 16 3/8 4 10 3


Page 59

HOW TO CALCULATE PRESSURE TEMPERATURERELATIONSHIP FOR POWER-FLEX TEFLON

EXPANSION JOINT SYSTEM

Pressure temperature ratings (non-shock)Since PTFE is a thermoplastic its physical properties are sensitive to changes in temperature.Hence, the bursting pressure of a Power Flex is a function of temperature. In addition, burstingpressure is related to a number of other variables, such as:1. Diameter2. Number of convolutions3. Rate of pressure application4. Extent of contraction from normal length5. Extent of expansion from normal length6. Degree of angular misalignment7. Amount of parallel misalignment8. Magnitude, frequency and duration of cycle vibrationGraph 1 to the right is a curve relating operating temperature to a “Pressure Factor” (Fp). Theshape of this curve is similar to that relating the drop in tensile strength of PTFE with increasingtemperature. The “Pressure Factor” must then be modified by a second factor, “F”, derivedfrom Table A. Fs is a function of pipe size, number of convolutions and style.The recommended non-shock maximum operating pressure can then be determined by equation.Equation (1) Pmax = (Fp) X (Fs)If the operating pressure of the system is known and the maximum safe temperature at thispressure is to be determined, Equation 1 is still applied, using the data from Graph 1 and Table A.

Example: A 6 inch, 5 convolution Power Flex expansion joint is needed for a pipe operating at a maximum pressure of 50 PSI. What is the maximumsafe operating temperature for this Power-Flex expansion joint? From Equation 1:

50 = (1.30) X Fp

Fp = 38.5From the curve in Graph 1, the operating temperature at Fp = 38.5 is 275ºF.

Table A - Pipe size and number of convolutions function (Fs)

Graph 1 - Relationship between pressurefactor (Fp) and operating temperature

Squirm Proof 2.25 1.93 1.87 1.82 1.80 Squirm Proof 2.10 1.80 1.77 1.74 1.71Standard Power-Flex 2.25 1.93 1.60 1.25 1.07 Standard Power-Flex 2.10 1.80 1.53 1.30 1.11Squirm Proof 2.25 1.93 1.87 1.82 1.80 Squirm Proof 2.04 1.75 1.72 1.69 1.66Standard Power-Flex 2.25 1.93 1.62 1.27 1.10 Standard Power-Flex 2.04 1.75 1.50 1.28 1.10Squirm Proof 2.25 1.93 1.87 1.82 1.80 Squirm Proof 1.95 1.72 1.69 1.64 1.64Standard Power-Flex 2.25 1.93 1.63 1.29 1.13 Standard Power-Flex 1.95 1.72 1.45 1.22 1.07Squirm Proof 2.25 1.93 1.87 1.82 1.80 Squirm Proof 1.85 1.65 1.61 1.60 1.57Standard Power-Flex 2.25 1.93 1.65 1.31 1.15 Standard Power-Flex 1.85 1.65 1.37 1.19 1.04Squirm Proof 2.25 1.93 1.87 1.82 1.80 Squirm Proof 1.78 1.58 1.55 1.53 1.51Standard Power-Flex 2.25 1.93 1.66 1.38 1.19 Standard Power-Flex 1.78 1.58 1.31 1.10 0.94Squirm Proof 2.25 1.93 1.87 1.82 1.8 Squirm Proof 1.70 1.53 1.52 1.50 1.48Standard Power-Flex 2.25 1.93 1.67 1.39 1.20 Standard Power-Flex 1.70 1.53 1.20 0.98 0.84Squirm Proof 2.25 1.93 1.87 1.82 1.8 Squirm Proof 1.62 1.51 1.49 1.47 1.45Standard Power-Flex 2.25 1.93 1.67 1.39 1.20 Standard Power-Flex 1.62 1.51 1.18 0.96 0.83Squirm Proof 2.25 1.93 1.87 1.82 1.81 Squirm Proof 1.54 1.41 1.39 1.38 1.36Standard Power-Flex 2.25 1.93 1.67 1.42 1.18 Standard Power-Flex 1.54 1.41 1.16 0.93 0.80Squirm Proof 2.25 1.86 1.82 1.78 1.75 Squirm Proof 1.47 1.34 1.33 1.31 1.30Standard Power-Flex 2.25 1.86 1.58 1.34 1.14 Standard Power-Flex 1.47 1.34 1.15 0.92 0.79Squirm Proof 2.20 1.84 1.81 1.77 1.74 Squirm Proof 1.38 1.28 1.27 1.26 1.24Standard Power-Flex 2.20 1.84 1.56 1.33 1.13 Standard Power-Flex 1.38 1.28 1.11 0.87 0.75

Pipe Style Number of Convolutions Pipe Style Number of ConvolutionsSize 2 3 4 5 6 Size 2 3 4 5 6

1/2

3/4

1

1-1/4

1-1/2

2

2-1/2

3

4

5

6

8

10

12

14

16

18

20

24

30


Page 60

Special drillingANSI 150 lb. is standard drilling for Power-Flex flanges. Thorburn can readily supply anyflange drilling (Corning, DIN, 300 lb.,clearance holes, etc.). Power-Flex expansionjoints are carried in stock with ANSI 150 lb.drilling, and a combination of ANSI 150 lb.drilling with Corning drilling. Please consultThorburn for any non standard drilling youmay require.

POWER-FLEX VACUUM AND DIMENSIONAL FLANGE DATA

Vacuum rating for Power-Flex teflon expansion jointsThe vacuum rating of Power-Flex teflon expansion joints decreases with increasing temperature, diameter and number ofconvolutions. Vacuum rings enable Power-Flex through 42” diameter to be rated for full vacuum at temperatures to 400ºF. Thevacuum ring is a metal hoop, inserted into the root of the convolution. Metal selection is based on the customer’s specification.Tantalum, Hastelloy, Monel, stainless steel, Nickel and Zirconium vacuum rings have been used to date. Also available PTFEcoated.

Consult Thorburn for vacuum rating on vacuum rings above 14” diameter.--: Use vacuum rings for full vacuum service.Notes: 1) When vacuum rings are used with any Power-Flex 3” diameterand larger, a full vacuum rating to 400ºF is obtained. 2) Please consultThorburn for data on partial vacuum applications.

Maximum temperature (ºF) for fullvacuum service (without vacuum rings)

Power-Flex with vacuum rings in place

Dia. Number of Convolutions(in.) 2 3 4 5 6

1 400 400 400 400 4001.5 400 400 400 400 4002.5 400 400 400 400 4003 400 400 400 400 4004 400 350 350 350 3005 400 350 350 300 2506 350 300 275 250 2008 300 250 200 150 100

10 250 200 150 100 —12 150 150 100 — —14 100 — — — —

A B C E F G H

Power Flare Flange PTFE Flange Number BoltFlex Face Outside Inside Thickness of Thread CircleSize (in.) Dia. (in.) Dia. (in.) (in.) Holes (in.)

0.5 1.38 3.50 0.56 0.38 4 0.5 x 13 2.380.75 1.69 3.88 0.81 0.38 4 0.5 x 13 2.75

1 2.00 4.25 1.00 0.41 4 0.5 x 13 3.131.25 2.50 4.63 1.38 0.41 4 0.5 x 13 3.501.5 2.88 5.00 1.63 0.44 4 0.5 x 13 3.882 3.63 6.00 2.06 0.44 4 .63 x 11 4.75

2.5 4.13 7.00 2.44 0.50 4 .63 x 11 5.503 5.00 7.50 3.06 0.53 4 .63 x 11 6.004 6.19 9.00 4.00 0.56 8 .63 x 11 7.505 7.31 10.00 5.06 0.56 8 .75 x 10 8.506 8.50 11.00 6.06 0.59 8 .75 x 10 9.508 10.63 13.50 8.00 0.69 8 .75 x 10 11.7510 12.75 16.00 10.00 0.69 12 .88 x 9 14.2512 15.00 19.00 11.94 0.75 12 .88 x 9 17.0014 16.25 21.00 13.13 0.81 12 1 x 8 18.7516 18.50 23.50 15.00 0.88 16 1 x 8 21.2518 21.00 25.00 16.88 0.94 16 1.13 x 7 22.7520 23.00 27.50 18.81 1.00 20 1.13 x 7 25.0024 27.25 32.00 22.63 1.13 20 1.25 x 7 29.5028 31.25 36.50 26.44 1.25 32 1.25 x 7 34.0030 33.75 38.75 28.00 1.38 28 1.25 x 7 36.00

A B

E

C

F holes tappedG on H circle


Page 61

EXAMPLES1) Power-Flex 8” diameter, 4 convolutions, 150 lb. ANSI, drilling with cable limits PTFE liner and safety shield. The ordering code would be: P8 DIPA-4-PS2) Power-Flex 20” diameter, 5 convolutions, one flange 150 lb. ANSI – one flange clearance holes with limitbolts, carbon steel flanges and Titanium vacuum

rings. The ordering code would be: 20 COBA-4-S2. 1) Titanium vacuum rings. 2) One flange 150 lb. ANSI – one flange clearance holes.

WARNING S p e c i f ymaximum continuous pres-sure and temperature withall part numbers

POWER-FLEX TYPICAL STYLES

Limitbolt Power-Flex:Conventional limit bolt

design.

Safety shield “PS”: Photograph showsPTFE fabric safety shield prior to installa-tion over Power-Flex and mating flanges.

Cable-limit Power-Flex: Offers maximumflexibility and permits installation where

mating pipe is not aligned.

Squirmproof Power-Flex:Increases working pressure

for multi-convolutionapplications.

Power-Flex liner systemUse a liner in a Power-Flex as shownbelow when:1. Abrasives are present2. Metallic or other sharp-edged

particles are or may be present3. Fluid velocity is high4. Fluid holds solids that might settle

out in convolution

Power-Flex top hat liner system

WARNING: Safety shields must be used at all times in hazardous service to protect against serious personal injury in the event of expansionjoint failure. Liner sleeves must be used in abrasive service or where sharp-edged solids are or may be present.

Power-Flex Size Flange Mat. Axial Restraint Liner Drilling # convolutions # of specials Safety shield

P 8 D I P A 4 S2 PS

Suffix PSA = Standard 150 lbs. ANSIO = CorningE = Clearance holesS = Other

B = Non linerP = PTFE linerS = Stainless steel

D = Ductile ironC = Carbon steelF = FRPS = Stainless steel

I = Cable limitO = Limit BoltsU = Squirmproof

How to order Power-Flex teflon expansion joints system


Page 62

Please consult Thorburn Engineering if pressures andtemperatures exceed those shown above.

WARNING: Operating Tef-Flex at conditions beyond pres-sure temperature curve may result in premature failure and/or rupture thus causing property damage or personal injury.

TEF-FLEX MOULDED PTFE EXPANSION JOINTS

Thorburn’s Tef-Flex, is a moulded PTFE expansion joint which hasbeen specifically designed for piping systems requiring the transferof corrosive medias at higher pressures and temperatures. Thorburn’sTef-Flex provides tremendous flex life and unmatched reliability.The virgin unpigmented properties of Tef-Flex increase its physicalproperties, adding strength, impermeability and stability at high tem-peratures. Only known chemicals to react with Tef-Flex are moltenalkali metals, liquid or gaseous florine.

■ Dependability under adverse conditions

■ Chemically inert and impervious to acids, sol-vents, caustics and oxidizers

■ Available in sizes from 1” to 24”

■ Temperature ranging from -300ºF to 400ºF

Thorburn’s skilled flexible pipingspecialists installing a PTFE liner to the

Tef-Flex bellows

Tef-Flex operating curve pressure / Vacuum vs temperature

Available with2, 3 or 5 convolutions

PRESSURE

Burst pressure4 times

working pressureVACUUM


Page 63

TEF-FLEX MOVEMENT, WEIGHT ANDLINER LENGTH DATA

ANGULAR MISALIGNMENT PARALLEL MISALIGNMENTCOMPRESSED EXPANDED

Special notes: 1) Maximum travel is based on installation with no misalignment or angular deflection. 2) Maximum misalignment is based on installation with no travelor angular deflection. 3) Combined travel and misalignment are proportionately lower for each type of deflection according to the percentage of the “Maximum” that isrequired for the other. 4) 5 convolution joints also available to provide increased movement capabilities.

How to orderModel # Liner (option) Special

4TF2 L S

L = PTFELM = Metal liner

Specify

Shown arestandard

dimensions. Otherflange drillingavailable upon

request

Model TF2 (2 convolutions) - Non-concurrent Model TF3 (3 convolutions) - Non-concurrent

NominalPipeSize

ModelNumber

NeutralLength

(in.)

± MaxTravel

AngularDegrees

(º)

± Max.Misa-

lignment(in.)

ShippingWeight

(lbs)

LinerLength

(in.)

ModelNumber

NeutralLength

(in.)

± MaxTravel

AngularDegrees

(º)

± Max.Misa-

lignment(in.)

ShippingWeight

(lbs)

LinerLength

(in.)

Movement (in.) Movement (in.)

1.5 1.5TF2 2.00 0.25 19 0.13 3.00 2.50 1.5TF3 2.75 0.50 34 0.25 3.00 3.502 2TF2 2.50 0.38 21 0.13 8.50 3.13 2TF3 3.25 0.50 28 0.38 8.50 4.00

2.5 2.5TF2 2.50 0.38 17 0.13 11.25 3.13 2.5TF3 3.25 0.50 22 0.38 11.25 4.003 3TF2 2.50 0.38 14 0.13 19.50 3.13 3TF3 3.25 0.50 20 0.38 19.75 4.004 4TF2 3.00 0.50 14 0.25 25.75 3.75 4TF3 4.00 0.75 20 0.5 26.00 5.005 5TF2 3.00 0.50 11 0.25 27.50 3.75 5TF3 4.00 0.75 12 0.5 28.00 5.006 6TF2 3.00 0.50 10 0.25 27.50 3.75 6TF3 4.00 0.75 14 0.5 28.00 5.008 8TF2 3.00 0.50 7 0.25 48.00 3.75 8TF3 4.00 0.75 14 0.5 48.50 5.00

10 10TF2 3.75 0.75 7 0.25 67.00 4.75 10TF3 5.00 1.00 12 0.63 68.50 6.2512 12TF2 3.75 0.75 6 0.25 95.50 4.75 12TF3 5.00 1.00 10 0.63 96.75 6.25

ASA Standard Holes Corning Style II Holes C D EPipeSize(in.)

No. ofHoles

Thread BoltCircle(in.)

No. ofHoles

Thread BoltCircle(in.)

FlangeO.D.(in.)

FlareFace(in.)

FlangeThickness

(in.)

1.5 4 .5 - 13 3.88 4 .31 - 18 3.88 5 2.75 0.382 4 .63 - 11 4.75 4 .31 - 18 4.75 6 3.5 0.44

2.5 4 .63 - 11 5.5 4 .31 - 18 5.5 7 4 0.53 4 .63 - 11 6 4 .31 - 18 6 7.5 5 0.694 8 .63 - 11 7.5 8 .31 - 18 7.5 9 6 0.695 8 .75 - 10 8.5 8 .38 - 16 8.5 10 7 0.696 8 .75 - 10 9.5 8 .38 - 16 9.5 11 8 0.698 8 .75 - 10 11.75 — — — 13.5 10.25 0.8810 12 .88 - 9 14.25 — — — 16 12.25 112 12 .88 - 9 17 — — — 19 14.5 1


Page 64

DO’S

• Inspect for damage during shipment, i.e. dents, broken hardware,water marks on carton, etc.

• Store in clean dry area where it will not be exposed to heavytraffic or damaging environment.

• Use only designated lifting lugs.• It is good practice to leave one flange loose until the expansion

joint has been fitted into position. Make necessary adjustment ofloose flange before welding.

• Install joint with arrow pointing in the direction of flow.• Install single Van Stone liners pointing in the direction of flow.

Be sure to install a gasket between the metallic liner and Van Stoneflange as well as between the mating flange and liner.

• With telescoping Van Stone liners, install the smallest I.D. linerpointing in the direction of flow.

• Remove all shipping devices after the installation is complete andbefore any pressure test of the fully installed system.

• Remove any foreign material that may have become lodgedbetween the convolutions.

• Refer to EJMA Standards for proper guides.

DON’TS

• Do not drop or strike carton.• Do not remove shipping bars until installation.• Do not use hanger lugs as lifting lugs without approval of

manufacturer.• Do not use chains or any lifting device directly on the bellows or

bellows cover.• Do not allow weld spatter to hit unprotected bellows.• Protect with wet chloride-free asbestos.• Do not use cleaning agents that contain chlorides.• Do not use steel wool or wire brushes on bellow.• Do not make the piping system fit the expansion joint by stretching,

compressing or offsetting the joint to fit the piping, it may beoverstressed when the system is in service.

• Do not force-rotate one end of an expansion joint alignment ofbolt holes. Ordinary bellows are not capable of absorbing torque.

• Do not hydrostatic pressure test or evacuate the system beforeproper installation of all guides and anchors.

• Pipe hangers are not adequate guides.• Do not exceed a pressure test of 1-1/2 times the rated working

pressure of the expansion joint.• Do not use shipping bars to retain the pressure thrust if tested prior

to installation.

“THOR-SHIELD” SAFETY SHIELDSPROTECTION FOR HAZARDOUS CONTAINMENT

Thorburn part number TSS(To order, add suffix TSS toexpansion joint part number)

Tef-Flex Torque Values

IPS Torque IPS Torque IPS TorqueFt.-Lbs. Ft.-Lbs. Ft.-Lbs

1 10 4 30 14 701 1/2 15 6 45 16 65

2 25 8 60 18 902 1/2 30 10 50 20 80

3 40 12 60 24 90

Special note: After 24 hours, or one temperature/pressure cycle, all bolts should be checked. Those falling below the minimum torque must beretorqued.

Tef-Flex recommended installation procedures

Thorburn recommends “Thor-Shield” to be used in all applications involving hazardousservice. Use Thor-Shield and contain spray-out of conveyed liquid in the event of

expansion joint failure.

WARNING: Thorburn’s warranty will be void if improperinstallation procedures have been used.

Thorburn Teflon Expansion Joints’ Installation Considerations


Page 65

Thorburn Hot-Flexexpansion joint systemcombines theproperties of metaland teflon into themost advanced andversatile expansionjoint available in theworld today

HOT-FLEX “HF”HEAVY DUTY TEFLON LINED METAL EXPANSION JOINT SYSTEM

Thorburn’s Hot-Flex expansion joint system is an engineeredproduct that was specifically designed to provide highpressure/temperature transfer containment of highly corrosivemedias that could not be safely handled by conventionalmetallic, elastomeric or teflon expansion joints.

Thorburn’s Hot-Flex combines the high pressure rating of ametallic expansion joint with the high temperature corrosionresistance of teflon, creating a product that will outperformthem both.

Engineering data shown is just a sample of Thorburn’s Hot-Flex capabilities. Each Hot-Flex expansion joint can be customengineered to your specific application: pressure/temperaturerating, spring rate movement (axial, lateral and angular),metallic carcass (stainless steel, monel, inconel, hasteloy, etc.),various lengths.

Note 1 Available in different lengths for increased movement capabilities.Note 2 Rods and flanges also available in stainless 304SS, 316SS, inconel, hasteloy, monel. Also teflon coated for special externally corrosive applications. Call

Thorburn for details.Note 3 Also available with other drilling patterns: 300, DIN, JIS, British standard, etc. Please specify requirement.Note 4 Always specify required design pressure and temperature requirements.Note 5 Available in sizes up to 120”.

AccessoriesModel Size OAL Convolutions Flange Rod & Flange XX=Specify design

(in.) (in.) Type/Material Material pressure psi & temp. F.

HF 12 16 10C FC AC 50/212

HOW TOORDER

Typical Design Movements and Force Specifications - Shown to 24” - Available up to 120” ID

ThorburnPart

Number Dia

met

er

Neu

tral

Len

gth

Net

Wei

ght

(lbs)

Axi

alC

ompr

essi

on

Axi

alE

xten

sion

Lat

eral

(±)

Ang

ular

(deg

.)

Axi

al(lb

s. pe

r 1/

8 in

.)

Lat

eral

(lbs.

per

1/8

in.)

Ang

ular

(ft.•

lbs.

per

deg.

)

Non-Concurrent Movement Spring Rate

HF1.5 #C-FM-XX 1.5 7.00 18 0.69 0.44 0.25 14 38 60 0.60HF2 #C-FM-XX 2 8.00 20 0.69 0.44 0.25 14 42 65 0.54HF3-#C-FM-XX 3 9.00 27 0.87 0.56 0.25 10 43 79 1.08HF4-#C-FM-XX 4 10.00 36 0.87 0.56 0.31 10 62 71 3.28HF6-#C-FM-XX 6 12.00 51 1.75 1.12 0.62 12 66 100 6.25HF8-#C-FM-XX 8 12.00 73 1.94 1.25 0.56 10 99 78 18.00HF10-#C-FM-XX 10 14.00 96 2.12 1.31 0.62 10 82 368 22.00HF12-#C-FM-XX 12 16.00 138 2.12 1.31 0.56 10 195 953 55.00HF14-#C-FM-XX 14 16.00 165 2.12 1.31 0.56 10 209 562 79.00HF16-#C-FM-XX 16 16.00 239 2.12 1.31 0.69 10 154 912 78.00HF18-#C-FM-XX 18 16.00 280 2.25 1.44 0.75 10 222 1082 135.00HF20-#C-FM-XX 20 16.00 343 2.25 1.44 0.62 10 309 1537 191.00HF24-#C-FM-XX 24 16.00 390 2.25 1.44 0.50 8 326 1888 281.00

PTFE Liner Thicknesses 1/8” thick

Notes: 1) #C = number of convolutions, i.e. 10C (Thorburn to specify)2) FM = Flange type and material i.e. V = vanstone; F = fixed

Flange material codes: C = Plated carbon steel, S4 = Plated SS304S6 = Plated SS316 Other: specify XX = Standard drilling #150


Page 66

HOT-FLEX “HF” CONSTRUCTION DETAILS

Hot-Flex PTFE or FEP teflon tube formed into astainless steel, inconel, monel or hasteloy corru-gated tube.

Flanges: Floating type (150#, 300# or metric).Available in carbon steel, stainless steel or tefloncoated to meet your specific requirements.

Options: Gimbal-hinged-dual-externally pressu-rized-pressure balanced.

Working temperatures: from -300ºF to +400ºF.

Working pressures: 50 - 150 - 300 psi available(please specify).

• Absorbs pipe move-ments and stress

• Isolates mechanicalvibration

• Reduces system noise• Protects against surge

forces

Note: For environmentally corrosiveapplications, laminated elasto-meric or teflon covers available

DANGER: Thor-Shields must be used at all times in hazardous service to protect against serious personal injury in the event of expansion joint failure.Thorburn internal liners must be used in abrasive service or where sharp-edge solids are or may be present.

HOT-FLEX REQUIRED SPECIFICATION DESIGN DETAILS

1. SAFETYIs fluid hazardous? Yes ❏ No ❏

Are abrasive solids present? Yes ❏ No ❏

(If yes to any of those questions, a Thor-Shield must be used)2. FLUID PROPERTIESMediumVelocity3. MATERIALS OF CONSTRUCTIONMetallic carcassFlangesInternal liner (if required)4. EXPANSION JOINT FEATURESSize in. nominal diameterInternal liner Yes ❏ No ❏

Safety shield Yes ❏ No ❏

Installation positionHorizontalVertical

Installed length in.Flange drilling lb.5. MARKING: CONDITIONS NOT TO BE EXCEEDEDPressure test psig. @ ºFOperating pressure psig @ ºFAxial movement in.Lateral movement in.Angular movement in.Angular movement degreesAre limit bolts to be factory set to eliminate pressure thrust?Yes ❏ No ❏

6. SPRING RATE REQUIREMENTS IF APPLICABLEAxial lbs./in.Lateral lbs./in.Angular ft.-lbs./degree

Up ❏

FlowDown ❏

7. DESIGN PARAMETERSCondition Pressure Vacuum Temp. MOVEMENTS*

(psig) (in., Hg.) (ºF) Axial (in.) Lateral (in.) Angular (deg.)Testing

InstallationToleranceNormal

OperationCold Weather

ShutdownDesign


Page 67

Hibernia offshore developmental project usedThorburn’s flexible piping technology to provide

external pressure containment, stress and movementabsorption on its permanent ballast water contain-

ment piping system over 80 meters under theAtlantic Ocean, off the East coast of Newfoundland

ADVANTAGES

■ Contains over 200 psi external orinternal pressure differential

■ Absorbs pipe movement and stress

■ Protects against surge forces

■ Isolates mechanical vibration

■ Sea water resistantThorburn’s Model 42HP-HDX being assembled, ready for external testing.

Thorburn proprietary system was successfully tested in the pressure chamber onthe right to 225 psi external pressure.

BALLAST WATER SECONDARY CONTAINMENTEXTERNALLY PRESSURIZED EXPANSION JOINT SYSTEM

Thorburn is the only manufacturerof rubber expansion joints in theworld who has designed, built andtested its elastomeric expansionjoints for external pressure up to225 psi (1052 kPa), in sizes up toand including 28” (111 mm) diam-eter. This proprietory design wasdeveloped for one of the world’slargest offshore oil rigs, Hibernia,situated off the coast of St.John’sNewfoundland, Canada.

Non-Concurrent MovementThorburn Basic Number Nominal Arches Face Axial Weight

Size (in.) to face Compression Extension Lateral (lbs)42HPHDX-24S-XY 24 Single 14 1.5 0.75 0.75 22542HPHDX-24D-XY 24 Double 18 3.0 1.5 1.5 25042HPHDX-24T-XY 24 Triple 22 4.5 2.25 2.25 27542HPHDX-26S-XY 26 Single 14 1.5 0.75 0.75 25042HPHDX-26D-XY 26 Double 18 3.0 1.5 1.5 27542HPHDX-26T-XY 26 Triple 22 4.5 2.25 2.25 30042HPHDX-28S-XY 28 Single 14 1.5 0.75 0.75 27542HPHDX-28D-XY 28 Double 18 3.0 1.5 1.5 30042HPHDX-28T-XY 28 Triple 22 4.5 2.25 2.25 325

XY = Tube / Cover elastomer Other sizes available upon request Bolt pattern to suit mating flange requirements

225 PSI EXTERNALPRESSURE DESIGN

Rubbercodes(XY)

ACCCDCFCHCHH

Tube

NaturalNeoprene

NitrileHypalonEPDMEPDM

Cover

NeopreneNeopreneNeopreneNeopreneNeoprene

EPDM

Max. Op. Temp. ºF

180225225212225250

Patented and Patent Pending

Tube/Cover Elastomer CodesMaterial


Page 68

FLEXI-DUCT SERIESFDR Elastomeric and FDC Composite ducting expansion joint system

• Pressures to ± 3 psi• Available in round or rectangular profiles

Model FDR: Elastomeric for ducting temperaturesbelow 400ºF

Model FDC: Composite type for ducting temperaturesabove 400ºF

Thorburn’s Flexi-Duct Series FDR & FDC are non-metallic ductingexpansion joints that are custom built and designed to provide stressrelief in ducting systems by absorbing movement caused by thermalchanges. Thorburn Flexi-Duct expansion joints also act as vibrationisolators, shock-absorbers and make up for minor misalignments.

1. Gas Seal Flexible MembraneThorburn Flexi-Duct gas seal flexible membrane is designed towithstand system pressure and be resistant to chemical attack fromthe interior and the exterior. The gas seal must also have theflexibility to absorb thermal movements. Depending on the systemtemperature, it may or may not require additional thermalprotection.

2. Insulating LayersThorburn Flexi-Duct insulating layers provide a thermal barrierto ensure that the inside surface temperature of the gas seal mem-brane does not exceed its maximum service temperature. The in-sulating layer can also reduce condensation caused by the gasstream coming in contact with the “cool” surface of an uninsulatedgas seal membrane.

3. Insulating Retainer LayerThis layer is provided solely to keep the insulating layers in placein order to maintain thermal integrity. The retaining layer must becapable of withstanding gas stream temperatures and must bechemically compatible with system media.

Flexi-Duct Typical Expansion Joint Components4. Back-Up Bars

Thorburn Flexi-Duct backup bar, positioned at the flange attachment,uses clamping pressure to create the fabric-to-duct seal and restrainsthe fabric when it is subjected to the system pressure. The thicknessand width of Thorburn’s backup bar should be sufficient to performthis function with the bolt spacing being used. The edges of Thor-burn’s backup bar have a radius to preclude cutting of the fabric.

5. Metal Liner or BaffleThorburn Flexi-Duct liner is designed to protect the gas seal mem-brane and insulating layers of the flexible element from abrasive par-ticles which may be present in the gas stream. A liner is also used toreduce flutter of the fabric element caused by turbulence, to help con-trol the accumulation of dust or ash in the expansion joint cavity andto reduce the temperature of the flexible element.

6. Fly ash BarrierThorburn Flexi-Duct fly ash barrier system is intended to deter flyash from building up in the expansion joint cavity. It is typically used,in conjunction with a liner, in duct runs from boilers to air clean-upequipment such as precipitators, scrubbers and bag houses, or when-ever high amounts of dust or ash are present in the gas. A fly ashbarrier must be capable of retaining its strength and flexibility whilebeing exposed to maximum system temperatures and media.

7. Fabric Attachment FlangesThorburn Flexi-Duct attachment flanges are required to connect theflexible element to the ductwork. Properly designed, they can be at-tached directly to the duct work and thus eliminate the necessity foran adjoining duct flange. Thorburn Flexi-Duct flanges can be de-signed with a “landing bar” duct attachment which allows some in-stallation misalignment without affecting the flexible element. Theflanges establish the stand off height of the fabric, which is necessaryto achieve thermal integrity during all movement conditions.


Page 69

WHY USE THORBURN NON-METALLICFLEXI-DUCT EXPANSION JOINT SYSTEMS

BENEFITS■ Lower System Design Costs: Since Flexi-Duct expansion joints can

accommodate all of the types of movements concurrently, the resultantsystem cost can be reduced as follows:• The number of total expansion joints may be reduced to take advantage

of the large, multi-plane movements.• The same movements can be derived in shorter face-to-face

dimensions than metal expansion joints.• The system geometry can be simplified.• The use of costly toggles, hangers, support structures and guides can

be extensively reduced.• The engineering time required to design the system is significantly

reduced.■ Low Material Costs: The use of high alloy metals may not be required

to meet the corrosion resistance required by the application. The variety of Flexi-Duct elastomers and plastics available will allowthe selection of the precise, least expensive material.

■ Lower Shipping and Installation Costs: Flexi-Duct non-metallic expansion joint can be factory pre-assembled and shipped tothe jobsite for ease of installation. Flexi-Duct expansion joints are relatively light weight and can be hoisted into place with aminimum of field assembly required.

■ No Gaskets Required: Since most installations are either welded into place or use integral rubber flanges, the use of gaskets maynot be required (For those installations utilizing metal flanges bolted into place, gaskets will be required.).

■ Lower Replacement Cost: Changing Flexi-Duct non-metallic expansion joints can be done with a minimum of downtime. Theexpansion joint can be provided either factory spliced or open ended for field splicing.

FEATURES■ Large Movements: Flexi-Duct non-metallic expansion joint offers multi-plane movements in

a shorter face-to-face dimension. The ability to accommodate axial, lateral (in two planes),torsional and angular movements concurrently is an inherent capability of the non-metallicexpansion joint designs.

■ Low Loads: The spring rates generated by the movements or required to move the expansionjoints are very low.

■ Corrosion Resistance: Flexi-Duct non-metallic expansion joint’s use of the wide variety ofelastomers, fabrics and plastics allows the selection of the correct materials for each applica-tion. The superior corrosion resistance of Flexi-Duct rubbers and plastics can extend the life ofthe expansion joint.

■ Sound and Vibration Elimination: The outstanding vibration and sound attenuation

Chemical and TemperatureResistance for Design Conditions

Temperature -100ºC to +1000ºC-150ºF to 1850ºF

Pressure ± 3 psi

Thorburn Flexi-Duct iscustom designed for air and

gas ducting systems

Thorburn Flexi-Duct expansion joints are a practical andeconomical solution that is indivudually designed to meet

the specific requirements of each application

characteristics of Flexi-Duct elastomers helpprevent premature system degradation.

■ High Temperature: With the use of specialmaterials, Flexi-Duct non-metallic expansionjoints can withstand over 1000 degreesFahrenheit operating temperatures.


Page 70

FLEXI-DUCT SERIES FDR & FDCAPPLICATIONSIncreasing environmental considerations have resulted in rigid regulations on stack gas emissions for power generating and industrialfacilities. Therefore, layouts for dust removal and gas scrubbing equipment have required increasingly complex duct work systems.The complexity of these new systems have provided Thorburn with the need to design and develop the world’s most technologicallyadvanced ducting expansion joint systems to solve problems created by the thermal and mechanical stresses developed in the ductingand associated equipment. Thorburn’s Flexi-Duct type expansion joints are being specified by designers and operators of large fluegas and combustion air systems for power generating stations and industrial plants.

SYSTEMS

• Gas turbine exhausts• Low pressure process gas and air• Exhaust gas and air• Heat recovery• Air pollution and fume control

INDUSTRIES• Refineries• Cement plants• Pulp & paper mills• Food processing plants• Chemical plants• Petrochemical plants

Powerplant ducting with long runs, multiple air or gas paths and high temperatures, are extremely demanding on Thorburn metallic and non-metallic expansion joints

• Scrubber• Precipitator• Baghouse• Stack hot air• Flue gas duct

• Steel mills• Foundries• Smelters• Marine• Incinerators• Power generation

Typical Flexi-Duct Non-MetallicExpansion Joint Applications

Expansion jointinstalled on the outletflange of a gas turbine

Custom-engineered roundexpansion joints ready for

shipment

Flexi-Duct expansion joint can bedesigned for high temperature

service up to 1800ºF

Vertical expansion jointlocated between

precipitator and stack

Typical Flexi-Ductradius corner


Page 71

FLEXI-DUCT SERIESFDR Elastomeric and FDC Composite Ducting Expansion Joint Systems

DESIGNS

Thorburn’s Flexi-Duct expansion joint designs will fall into two ba-sic types; elastomeric FDR or composite FDC. Within the two basictypes, Flexi-Duct is manufactured either in a belt or integral mouldedflange design (please see sketches on the right).

An important consideration in selecting Thorburn’s Flexi-Ductexpansion joint is the system temperature. In general, there are twoclassifications: those operating under 400ºF (typically elastomeric)and those operating above 400ºF (typically composite).

MATERIALS USED IN THORBURN’S FLEXI-DUCT NON-METALLIC EXPANSION JOINTS

The performance of Thorburn’s Flexi-Duct non-metallicexpansion joints for various gas ducting systems isdetermined by the severity of the environment and bythe selection of the materials for each component of theexpansion joint. Selection of materials must be based onboth operating temperature and chemical resistance. Acorrosive atmosphere that might not have a noticeableeffect at low temperature could have a disastrous effectat higher temperatures still within the basic heat resistancecapability of the material. Conversely, systems at or belowthe dew point can result in highly corrosive condensates.

The proper selection of materials will endure long termperformance of Thorburn’s non-metallic expansion jointsin even the most adverse ducting system environment.

TYPICAL FLEXI-DUCT CONSTRUCTION ELEMENTS

Elastomers: Are used to provide gas sealings of the ductingmedia.

Fabrics: Are used to provide pressure containment of theducting system. In addition, fabrics are used forinner and intermediate layers in composite stylejoints as thermal barriers and mechanicalreinforcement. The selection of fabrics is basedupon compatibility with the specific thermal,chemical and mechanical requirements of thesystem.

Insulating layers: Are designed to reduce interface temperatures toa level which permits satisfactory performanceand life of the fabrics and gas seal membrane.Fiberglass blankets perform well to 1000ºF andceramic blankets perform well to 1800ºF, but dohave mechanical and chemical limitations.

Liners and barriers: Are designed to protect the expansion jointagainst system mechanical damages such aserosion or abrasion.

SINGLE PLYDESIGN

DOUBLE PLYDESIGN

For pressures up to ± 3 psi

For pressures up to ± 2 psi

Typical High Temperature Flexi-DuctComposite Construction

Nominal 1850° F. (1000° C,)

Maximum 1300° F. (700° C,)

Maximum 930° F. (500° C,)

Nominal 250°F. (120°C,)

Approximately140°F. (60°C,)


Page 72

■ FLANGE HEIGHT AND SETBACK

• The Setback (Stand-off Height)

This is the distance to which the expansion joint(flexible element) is moved outward from the gasstream to allow for lateral movements and to preventthe joint from protruding into the gas stream or rubbingon the baffle when operating under negative pressures.Proper setback also reduces the thermal transfer effecton the inner face of the expansion joint and preventsabrasion from particles in the gas stream. ConsultThorburn for their recommended setback.

• The Flange Height

The standard flange height for the elastomeric type is3 inches. Variations are available to meet certainapplications.

• Overall Duct Flange Height

To determine overall mating duct flange heights, expansion joint flange height plus Thorburn’s recommended setbackmust be considered. To accommodate deviations from standard dimensions, custom modifications to standard sizesare available. Consult Thorburn for details.

FLEXI-DUCT ENGINEERING DESIGN CONCEPTS

■ BOLT SPACING

In order to properly seal the expansion joint at the ductflange, all flange bolt holes spacing is standardized at afour inch or six inch center-to-center distance. Holesare typically slotted, but round holes are available.

Bolt size Flange bolt hole spacing

1/2” 4 inch C-C

5/8” 4 or 6 inch C-C

A “corner hole” is required on all rectangular expansion joints

Typical examples of flange setback and calculation of flange outside diameter


Page 73

FLEXI-DUCT ENGINEERING DESIGN CONCEPTS

■ MOVEMENTS

The face-to-face dimension of Thorburn’s Flexi-Ductexpansion joint, as installed, is a major design consideration.In general, an increased face-to-face dimension results ingreater movement capabilities.

Three dimensional system movements can occur five waysand in any combination. They are outlined below.

A Axial Compression: The dimensional shortening of theexpansion joint face-to-face gap parallel to its longitudinalaxis.

B Axial Extension (elongation): The dimensionallengthening of the expansion joint face-to-face gap parallelto its longitudinal axis.

C Lateral: The dimensional displacement of the inlet andthe outlet flanges of the expansion joint perpendicular toits longitudinal axis.

D Torsional rotation: The twisting of one end of the expansion joint with respect to the other end about its longitudinal axis.

E Angular rotation: That movement which occurs when one flange of the expansion joint is moved to an out-of-parallel positionwith the opposite flange.

Belt BreachSpan/ Opening/

Belt free Installed Axial Axial Laterallength length compression extension deflection

6 5-1/2” 1” 1/2” ± 1”9 8-1/2” 2” 1/2” ± 2”

12 11” 3” 1” ± 3”16 15” 4” 1” ± 4”

TYPICAL MOVEMENT CAPABILITIES

The movements shown are representative of a movement occuring in anydirection from the true centerline of the expansion joint. Greater

movement can be accommodated by pre-offsetting the duct-work oppositethe anticipated movement.

■ BACK-UP AND CLAMPING BARS

These are metal bars used for the purpose of clamping the Flexi-Duct expansion joint to the mating ductwork flanges or clampingthe fabric portion of a belt-type expansion joint to the metal adapter flanges.

Standard back-up bar sizes are 3/8” x 2” and 3/8” x 1-1/2”; other sizes may be available. Back-up bar selection depends upon the boltspacing, bolt hole size and expansion joint flange height.

Other forms of clamping bars include “L” shapes, channels and bars with clamp strips on the clamping surface.

To prevent damage to the Flexi-Duct expansion joint, Thorburn removes all sharp edges from the back-up bars which may come intocontact with the flexible element by grounding smooth to a radius.


Page 74

FLEXI-DUCT DESIGN CONSIDERATIONS

WHEN THE MAXIMUM CONTINUOUS SYSTEM OPERATING TEMPERATURE (MCSOT) IS NEAR THE GAS DEW POINT ANDLESS THAN THE ALLOWABLE SERVICE TEMPERATURE OF THE GAS SEAL MEMBRANE MATERIAL:

GOOD DESIGNDew Point Composite “Belt Style”

■ Expansion joint flexible element is fully insulated to conserve energy,yet easily accessible for inspection and replacement.

promote problems. The following examples help illustrate correctdesign methods for expansion joints and ducting insulation.

Insulating Layers

The thermal barrier of a multilayer fabric element must resistheat, moisture and acid attack. Additional retaining layers mustbe made of materials which remain strong and flexible whenexposed to high temperatures and acids or condensates resultingfrom operation at or below the dew point.

Single Ply “Belt Style”

POOR SELECTION OF MATERIALSSingle Ply Gas Seal Membrane

■ Ducting and expansion joint are not properly insulated.■ Severe condensation is possible.■ Costly heat energy is lost.

Misapplication of a “hi-temp” composite belt causes:■ Ducting and expansion joint are not properly insulated.■ Severe condensation is possible.■ Costly heat energy is lost.

WHEN THE MAXIMUM CONTINUOUS SYSTEM OPERATING TEMPERATURE (MCSOT) EXCEEDS THE ALLOWABLE SERVICETEMPERATURE OF THE GAS SEAL MEMBRANE MATERIAL:

GOOD DESIGN

■ Minimizes heat loss and permits optimum cooling of the gas seal membrane■ Flange standoff reduces the temperature of the belt and the critical

attachment area, thereby maximizing service life.

POOR SELECTION OF MATERIALS ANDCONSTRUCTION

■ Gas seal membrane is exposed to full system temperature.■ Attachment flanges are insulated and turned-in, preventing adequate

cooling and accelerating deterioration of the gas seal membrane.

■ Exterior insulation prevents the necessary cooling of the gas seal mem-brane and attachment flanges, resulting in severe degradation of theexpansion joint.

High temperaturecomposite belt to900ºF MCSOT

■ Additional insulation reduces the temperature in the expansion jointcavity to an acceptable level.

Extreme hi-tempconstruction to1200ºF MCSOT

SYSTEM TEMPERATUREInsulation and Condensation Within the DuctingHigh temperature ducting systems are frequently insulated toconserve energy and help prevent internal condensation andcorrosion of the ducting. Properly designed expansion jointelements meet these criteria. Poorly designed components will

Outer weather plyFlexible insulation

Gas seal membrane Duct fullyinsulated

Flow

Retainer layer

Permanent ductinsulation by others

Gas seal membrane,replaceable frominside the duct

Flexible insulation

Flow

Outer gas sealmembrane

Insulation

Porousretainerlayer

Single ply gas sealmembrane

Outer gas seal membrane

Flow

Flow

4” min.

6” min.

Hi-temp insulation bag

Hi-temp composite belt isolated fromflanges using insulation tape


Page 75

FLEXI-DUCT DESIGN CONSIDERATIONS

Flexi-Duct Abrasion Resistance CapabilityWhen fly ash and solid particulate matter are present, theiraccumulation or abrasiveness must be considered.Thorburn Flexi-Duct expansion joint has excellentabrasion resistance when the inner ply is elastomer coated.When the inner ply is TFE, TFE coated fabric or variousfiberglass and asbestos fabrics, the inside surface of theexpansion joint must be protected from the directimpingement of particulates. This protection is providedby internal metal liner either welded, bolted or integral tothe expansion joint or the duct.

Fly Ash AccumulationThorburn Flexi-Duct expansion joint typically creates a cavity in theduct-work where fly ash or dust can accumulate. When this accumulationbecomes severe, it can inhibit movement of the expansion joint. Flyash accumulation can be minimized by carefully designing linerclearances and adding a fly ash barrier.

1) ACCUMULATION BARRIER

Thorburn’s accumulation barrier design, which fills the entire cavitywith a material less dense than fly ash, is commonly used on hightemperature, dry systems or where fly ash accumulation is only aproblem on one side, such as the bottom of a horizontal duct.

2) MEMBRANE BARRIER

Thorburn’s membrane barrier design, consisting of a thin, flexiblematerial such as fabric, wire mesh or high alloy metal sheet, isused in a variety of environments where a barrier is required aroundthe entire perimeter of Thorburn Flexi-Duct expansion joint.

3) INSULATION BARRIER

Thorburn’s insulation barrier design includes placing insulatingmaterials in the cavity between the expansion joint and the liner.

External Environment ConsiderationsCorrect operation of Thorburn’s high temperature Flexi-Duct expansion joints requires that a portion of the system heat be dissipatedto the external environment. Abnormally hot ambient conditions or an adjacent heat source, reflective surface or duct insulation maycreate temperatures which exceed the limits of the gas seal membrane and should be considered when designing the system.

An external cover may be desirable to help protect against falling objects or the accumulation of combustible materials such as coal orsaw dust. Covers should be designed by the expansion joint manufacturer to ensure that proper air circulation requirements aresatisfied.


Page 76

ANGLE FRAME STYLES FOR RECTANGULAR,SQUARE OR ROUND DUCTS

• Best choice when liners (baffles) are required• Landing bar type fit allows for duct misalignment• Accommodates any flat belt selection• Shipped fully assembled for easy installation

• Accommodates any flat belt selection• Rectangular joints have full radius corners• Shipped fully assembled for easy installation• Low cost• Includes factory bolt holes• Tack-welded nuts are optional• Also available weld frame design

• Designed for easy, low cost replacement offlexible element

• Designed for operation below the allowableservice temperature of the gas seal membrane

• Adaptable to any flat belt frame style• Flexible element can be replaced from inside

the ducting

• Accommodates a flanged duct• Bolting accessible from exterior of duct• Designed for operation below the allowable

service temperature of the gas seal membrane• Tack-welded nuts are optional


“B” BELT ONLY “BB” BELT & BACK-UP BARS

“BF” BOLTED FLANGES “FLW” FLANGE LINER WELDED

“AFW” ANGLE FLANGE WELDED

Thorburn Flexi-Duct expansion joints with flatexpansion belts must always be installed with a radiuscorner to assure a leak tight seal. A 3” radius issatisfactory for most conditions.

• Rectangular joints have full radius corners• Low replacement cost of flexible element• Best choice for attachment of a fly ash barrier• Flanges can act as duct stiffeners

SPECIAL ANGLE FRAME STYLES

“EBF”EXTERNALLYINSTALLED -BOLTED INFLANGE

“IBF”INTERNALLYBOLTEDFLANGE

“EIBF”EXTERNALLY/INTERNALLYINSTALLED -BOLTEDFLANGE

Back-upbars

Gas flow

Active length

Typical beltprofile

Breach opening

Angleframes

Clamping bars

Gas flow

Active length

Typical beltprofile

Breach opening

Angleframes

Back-up bars

Gas flow

Typical beltprofile

Breach opening

Angleframes


Page 77


Thorburn’s LAM expansion joint has a diaphragmdesign for accommodating very large axialmovements. The special belt geometry eliminatesstress and overlap problems.

Please note that bolts and nuts are available upon request

Installed length / Breach opening 5-1/2” 8-1/2” 11” 15”Free length / Span 6” 9” 12” 16”Set-back height flat belt, positive pressure 3” 3” 4” 6”Set-back height flat belt, negative pressure 4” 6” 6” 7”

TYPICAL SET-BACK HEIGHTS (MINIMUM)

“UB” BELT ONLY “UBB” BELT & BACK-UP BARS

“UBF” BOLTED FLANGES “UFL” FLANGE/LINER

“UAFW” ANGLE FLANGE WELDED

Thorburn Flexi-Duct expansion joints must always beinstalled with a radius corner to assure a leak-tight seal.A 3” radius is satisfactory for most conditions.

3 3

BREECHOPENING

A

BREECHOPENING

A

SET BACK

A

SET BACK

BREECHOPENING

A

LATERAL MOVEMENT

BREECHOPENING

A

SET BACK

BREECHOPENING


Page 78

FLEXI-DUCT MOULDED CORNER TYPE “MC”Rectangular or Square Ducting Systems

Thorburn frame Type MC expansion joint features integrally moulded fabric reinforced elastomer belt cornersrequiring only one longitudinal splice. Flat mounting-bars connect the fabric to the integrated flanges.Thorburn frame Type MC has many advantages. Its design allows for maximum movement capabilities. It isalso a low cost joint because it eliminates the need for an additional metal frame (corrosion-affected hardware)and installation time is minimized. Thorburn Type MC is bolted and self-seals itself to the existing duct flange.Temperature ranges are from -60º to +500ºF, depending upon the elastomer/fluoroplastic fabric selection. Weld-in or bolt-on flow liners may be added when the medium contains erosive dust or heavy particulate matter.Higher temperature capabilities are possible utilizing the Thorburn composites build-up.

• Accommodates a flanged duct• Bolting accessible from exterior of duct• Replaces existing moulded corner joints• Low initial cost• Designed for operation below the

allowable service temperature of the gasseal membrane

Thorburn MCBL mouldedcorner with bolt-in flow liner

Thorburn MCWL moulded cor-ner with weld-in flow liner

Thorburn MC moulded corner

Breach opening installed length 6” 9” 12” 16”Setback height Moulded corner, positive pressure 3” 4” 4” 5” Moulded corner, negative pressure 5” 6” 7” 8”

TYPICAL SETBACK HEIGHTS (MINIMUM*)

Typical moulded corner rectangular expansion joint. Thisdesign is routinely used for scrubber, precepitator, baghouse

and stack hot air or flue gas duct.

* Manufacturing procedures may require slightly greater standoff;special clearance restrictions should be specified.


Page 79

FLEXI-DUCT TYPICAL MATERIALS FOR CONSTRUCTION,TEMPERATURE LIMITS AND CHEMICAL COMPATIBILITY

Elastomer or Thorburn Minimum Typical System Typical Material Intermittent Use**Polymeric Coating Codes Temperature Temperature Continuous

Gas Seal (Low Temp. Uncoated Materials Temp. Time/Hrs.Membrane Brittle Point) Temperature*

Neoprene C -40 180-225 180 250 168

Hypalon F -40 225-275 225 250 2600350 70

EPDM H -60 260-325 260 300 500350 200

Butyl/Chlorobutyl E -40 260-300 260 350 150

Viton™ (Dupont)/Flurel™ (3M) I -40 400-450 400 550 240600 48650 1

Teflon J -110 500-625 550 650 100700 75

Temperature Limits of Flexi-Duct Elastomeric and Composite Materials (ºF)

Chemical Compatibility of Flexi-Duct Elastomeric and Composite MaterialsNeoprene EPDM Hypalon Butyl/ Viton Teflon

(C) (H) (F) Chlorobutyl (E) (I) (J)Dilute sulfuric acid, R.T.** A A A A A ADilute sulfuric acid, Hot* C B A B A AConc. sulfuric acid, R.T.**¨ C C A B A AConc. sulfuric acid, Hot* C C A C A ADilute hydrochloric acid, R.T.** A A A A A ADilute hydrochloric acid, Hot* C B A B A AConc. hydrochloric acid, R.T.** C B A A A AConc. hydrochloric acid, Hot* C C C C B ASulfur dioxide, Wet A A A A A ASulfur trioxide, Dry C B C B A ASteam, 212ºF B A B A A A

Monel orInconel

AAAA ReinforcedChrysotile AAA Alumina-

Nylon Polyester Aramid Asbestos Fiberglass Asbestos Silica Silica Temperature ºF 230 250 450-700 900 700-1000 1200 1800 2000 Dilute sulfuric acid Good Good Good Fair V. Good Good V. Good V. Good Conc. sulfuric acid Poor Fair Poor Poor Good Fair V. Good V. Good SO2, SO3 Good Good Good V. Good V. Good V. Good V. Good V. Good

Temperature Limits & Chemical Compatibility of Various Flexi-Duct Uncoated Fabrics

* These temperatures represent materials capabilities, in a soaking temperature environment where heating occurs only on one side, not system temperature.** Excessive intermittent use at high temperatures may have a detrimental effect on useful life at maximum operating temperatures.

Rating code: A: Little or no effect; B: Minor to moderate effect; C: Severe effect * Hot temperature: 158ºF ** Room temperature: 70ºF


Page 80

HOW TO ORDER FLEXI-DUCT

Thorburn’s Flexi-Duct round and rectangular fabric expansion joints can be specified or ordered by part numberdirectly from this catalogue. The following instructions will help determine the correct part number. Completionof the “Expansion Joint Specification Sheet”, on page 80 of this catalogue, is also helpful and enables Thorburn’sengineering staff to verify that the correct design has been selected.

How to determine a Flexi-Duct part numberFollow the instructions below to complete Thorburn Flexi-Duct part number. Several examples have been selectedto demonstrate different designs (page 81).

1 ASSEMBLY INSTRUCTIONS

A Assembled - Ready for immediate installation. Includes back-up bars, nuts and bolts.

U Unassembled - Match-marked and packaged to minimizeassembly at the jobsite.

BA Belt, Assembled - Fabric belt elements are provided as afactory-spliced, endless loop, to fit existing frames.

BU Belt, Unassembled - Fabric elements are prepared for splicingat the jobsite (see item 7).

Factory holes, back-up bars, nuts and bolts must be specified ifrequired.

2 MAXIMUM CONTINUOUS SYSTEMOPERATING TEMPERATURE (ºF)

This is the highest temperature at which the system normallyoperates. Excursion (upset) temperatures and durations should bespecified on the “Expansion Joint Specification Sheet”. Forapplications exceeding 1200ºF, please consult Thorburn’sEngineering Department.

3 SYSTEM OPERATING PRESSURE

P Positive pressure only

N Negative pressure only

NP Negative and positive pressure

Maximum rated operating pressure: ±90 in. H20 (±3 psig)

4 FRAME STYLE

Select the appropriate frame style from the standard designs onthe preceeding page. Enter the respective two or three letter codein the part number. For frame styles, see pages 76 and 77.

Assembly MCSOT Pressure Style Liner Span Duct Size Materials AdditionalFree Inside Instructions

Length Dimension

1 2 3 4 5 6 7 8 X

FD

5 LINER REQUIREMENT

L Integral liner - factory assembled as part of the metal frame.

LP Loose liner by Thorburn - shipped loose, properly sized andmatch-marked to minimize field installation.

LO Liner by others.

NL No liner.

When the Frame Style includes an integral liner, such as ULF,RLFW, MCBL or MCWL designs, enter “L” in the part number.

6 SPAN (Face to Face Dimension)

“Span” (the working face to face dimension) defines theunrestrained width of the fabric element, and is typically thedistance between the inner edges of the back-up bars. Thisdimension determines the amount of movement the expansion jointis capable of absorbing, and should not be confused with theinstalled face to face dimension / breach opening of the entireassembly.

The graphs on page 81 show maximum concurrent movementcapabilities for four standard spans.

Notes:

• Torsion and angular movement capabilities may be obtainedby consulting Thorburn’s Engineering Department.

• Larger spans are possible, depending on system pressures andmovements, and require consultation of Thorburn’sEngineering.

• Non-standard face to face dimensions are available.

• Movements must be specified in the description accompanyingthe part number.

*For Codes, see page 79


Page 81

A significant difference exists between the movement capabilities of round expansion joints and large rectangular joints (sides exceeding3’0” length). This difference is due to the folding characteristics of the fabric element which vary depending on whether it is attachedto straight or curved flanges.

The curves indicate the lateral movement capability corresponding to each increment of axial movement. When little or no axialmovement is specified, lateral capability can be obtained by precompressing the joint (and installing at a shorter face to face dimension)or increasing flat belt width.

CAUTION:INSTALLATIONTEMPERATURE ANDDUCT TOLERANCESMUST BE CONSIDEREDIN DETERMININGINSTALLED FACE TOFACE DIMENSIONS ANDMOVEMENTS.

7 DUCT SIZE

■ Assembled and unassembled assemblies

Size is specified as the inside duct measurements, in inches, forboth rectangular and round joints. Standoff height, if non standard,should be specified under “Additional Instructions”.

■ Belt only designs

If only a fabric element is to be supplied, the size of the beltattachment flanges should be accurately specified. The diagramabove shows the required dimensions. A dimensional sketch,including belt width and length, must be supplied when ordering.

Pre-punching bolt holes is not recommended.

X ADDITIONAL INSTRUCTIONS

Adding an “X” to the end of a Flexi-Duct part number enables thedesigner to specify additional requirements, using a writtendescription following the part number. Examples are:

• Heat seal iron or vulcanizing equipment• Fly ash barrier (membrane or accumulation)• Dew point composite belt desired• Alternate frame or backing bar material or size• Alternate bolting size, material or pattern• Special liner instructions (such as telescoping liner)• Corner radius• Tack-welded nuts• Frame alignment holes (size and location)• Preset of expansion joint assembly (or special face to face for

shipping)• Drain connection required• Insulation tape or pillow• Special belt materials• Special painting or packaging instructions

Model Assembly MCSOT Pressure Frame Liner Span Duct Size/ MaterialDeg. F Free Belt Inside Gas Backup Frame

Length Dimension Seal Bars Flange/(in) Membrane Liner

FDC A 675 N AFW L 16 106 x 140 J CS S4

FDC U 450 P B LO 12 36 x 96 J S6 S6

FDR BU 320 NP UB NL 9 78 I S4 CS

How to Order

Model codes Gas seal membrane material codes Backup bars/flanges material codesFDR = Elastomeric C = Neoprene H = EPDM F = Hypalon CS = Carbon steel A36/44W S4 = 304SSFDC = Composite with E = Butyl/Chlorobutyl I = Viton J = Teflon S6 = 316SS XM = Specify material

installation S = Silicon Model FDR = Elastomeric type < 400°F. (204°C.)Model FDC = Composite type > 400°F. (204°C.)

HOW TO ORDER FLEXI-DUCT

8 MATERIALS


Page 82

FLEXI-DUCT INSTALLATION INSTRUCTIONS

■■■■■ CHECK BREACH OPENING for misalignment. Ensure the face to face is to the drawing. All flanges shouldbe parallel. If misalignment exists or the breach opening exceeds the face to face tolerance by ± 1/4”, consult withThorburn technical department.

■■■■■ CHECK THE ATTACHMENT FLANGES OR EDGES to be sure they are clean, smooth and free of burrs.

■■■■■ CLEAR WORK AREA of all protrusions or sharp objects.

■■■■■ PLACE BAFFLES OR LINERS (if part of installation) inside the duct-work before beginning the expansionjoint installation.

■■■■■ TRANSPORT THE EXPANSION JOINT to the installation area in its shipping container. If the expansionjoint is to be transported outside of its shipping container, all surfaces contacting with ropes, slings or fork-liftsshould be protected with soft materials.

■■■■■ REMOVE THE EXPANSION JOINT from its container, unfold and layout in its approximate installed shape.Prevent the joint from coming in contact with any sharp objects.

■■■■■ INSPECT ALL COMPONENTS for shipping damage.

1. BUILD A PLATFORM of 3/4” plywood or other available material. This platform must be moveable and suffi-ciently large to layout the expansion joint in the approximate installed shape. If the joint is factory assembled, theplywood may not be necessary.

General Instructions Before Installation

Flexi-Duct Installation in Vertical Ducting

2. COMPRESS THE EXPANSION JOINT by squeezing theflanges together. Tie down with tape in several places to hold thejoint in compression. The total compressed dimension must beless than the breach opening to allow for clearance during posi-tioning. Factory assembled units are pre-compressed and heldwith shipping bars which should be left intact.

3. SLIDE PLYWOOD AND JOINT INTO THE BREACHOPENING. The plywood should rest on the bottom flange. Placethe joint in the approximate position in relation to the flanges.Cut the tape or remove the shipping bars.

4. POSITION TOP FLANGE AND RETAINING BARS so theflange holes are aligned. Ensure the joint is properly centeredand install several position bolts.

5. BOLT THE TOP FLANGE AND RETAINING BAR COMPLETELY. All bolts should be installed with thebolt head against the retaining bar and the nut against the duct flange. Mould the expansion joint from the inside toremove all wrinkles and to ensure the corner develops the correct configuration.

6. REMOVE THE PLYWOOD CAREFULLY AND REPEAT STEPS 4 AND 5 for the bottom flange.


Page 83

FLEXI-DUCT INSTALLATION INSTRUCTIONS

1. LASH STIFFENER BARS (wood, steel, etc.) to theinside of the top of the expansion joint with nylon tape orrope for use when lifting and positioning.

2. COMPRESS THE EXPANSION JOINT by squeezingthe flanges together. Tie down with tape in several placesto hold joint in compression. The total compresseddimension must be less than the breach opening to allowclearance during positioning. Factory assembled units arepre-compressed and held with shipping bars which shouldbe left intact. Tie the center bottom of the joint to the topwith tape.

3. PLACE A PLYWOOD SHEET AT BOTTOM OFDUCT OPENING for support during installation.

Flexi-Duct Installation in Horizontal Ducting

Installation of Baffles or Liners1. PLACE THE BAFFLES IN DUCT-WORK prior

to installation of the expansion joint.

2. IF THE BAFFLES ARE TO BE WELDEDINTO PLACE, the welding should be done afterthe expansion joint installation.

a) The expansion joint must be covered with awelding blanket to protect from weld splatter.

Pre-Installation StorageIf the expansion joints are to be stored for any period of time, they should be kept in their original shipping container.The storage area should be relatively cool and dry. The area should be removed from any ozone generating equipment(electrical motors) or heat sources.

b) The welding blanket should be removedbefore putting the joint in service.

3. IF THE BAFFLES ARE TO BE BOLTEDINTO PLACE, the baffle flange should beinserted between the duct-work and jointflanges. A gasket should be installed betweenthe duct-work and baffle flanges when the joint,retaining bar, baffle and ductwork flange arebolted together.

4. HOIST THE EXPANSION JOINT INTO BREACH OPENING. Place the joint in the approximate positionin relation to the flanges. Cut the compression tape or remove the shipping bars and cut the tape connecting thecenter bottom to the top.

5. POSITION THE JOINT FLANGES AND RETAINING BARS so the flange holes are aligned. Ensure thejoint is properly centered and install several positioning bolts.

6. BOLT THE UPPER FLANGE AREAS COMPLETELY. All bolts should be installed with the bolt headagainst the retaining bar and the nut against the duct flange. Mould the expansion joint from the inside to removeall wrinkles and to ensure the corner develops the correct configuration.

7. REMOVE THE STIFFENER BARS AND THE BOTTOM SUPPORT. Repeat steps 5 and 6 for the balanceof the expansion joint.


Page 84

DATA REQUIRED FOR FLEXI-DUCT EXPANSION JOINT DESIGN

Customer’s Name Date Page

Mailing Address Project Name Delivery Req’d.

City, Province (State), Postal Code (Zip Code) Specification No. Inquiry No.

Name of Person Submitting Data Phone No. Item No./Tag No. Item No./Tag No. Item No./Tag No.

QUANTITY PER ITEM

NEW OR REPLACEMENT

TYPE OF PLANT/SERVICE (PRECIP., SCRUBBER, ETC.)

TYPE OF FUEL AND PERCENT SULFUR (if applicable):

Ph of MEDIA AT THE EXPANSION JOINT ACID _____ CAUSTIC _____ BOTH _____

NUMBER OF STARTUPS AND SHUTDOWNS PER YEAR PEAK LOAD ___ BASE LOAD ___

LOCATION OF E.J. (I.D. FAN OUTLET, STACK, ETC.)

DUCT SIZE (INSIDE DIMS. OR DIA.) Ft In Ft In Ft In

FACE TO FACE DIM. (IF REPLACEMENT OR REQUIRED) Inches Inches Inches

FLOWING MEDIUM (AIR, FLUE GAS, ETC.)

DUST LOAD PSF PSF PSF

FLOW VELOCITY FPS FPS FPS

FLOW DIRECTION (UP, DOWN, HORIZ., ANGULAR UP, ANGULAR DOWN)

MAXIMUM In H20 In H20 In H20

NORMAL In H20 In H20 In H20

MCSOT ºF ºF ºF

TEMPERATURE ºF ºF ºF

DURATION PER EVENT Hr Hr Hr

CUMULATIVE DURATION Hr Hr Hr

MAXIMUM ºF ºF ºF

MINIMUM ºF ºF ºF

AXIAL COMPRESSION Inches Inches Inches

AXIAL EXTENSION Inches Inches Inches

LATERAL DEFLECTION Inches Inches Inches

ANGULATION / IN PLACE OF LATERAL (YES OR NO) º / Y N º / Y N º / Y N

TORSION º º º

DUCT MATERIAL

DUCT THICKNESS Inches Inches Inches

DUCT CORNER: RADIUS OR SQUARE

INTERNAL LINER

DUCT OR FLY ASH BARRIER DESIRED (YES OR NO) Y N Y N Y N

DESIGN PRESSURE

GAS TEMPERATURE

AMBIENTTEMPERATURE

MAXIMUMEXCURSION(UPSET)

SERV

ICE

SIZ

EG

AS

PRE

S.T

EM

PER

ATU

RE

MO

VE

ME

NT

SD

UC

T

OTHER COMMENTS


Page 85

-325 -198 -2.37 -2.22 -3.85 -2.04 -3.00 -2.62-300 -184 -2.24 -2.10 -3.63 -1.92 -2.83 -2.50-275 -171 -2.11 -1.98 -3.41 -1.80 -2.66 -2.38-250 -157 -1.98 -1.86 -3.19 -1.68 -2.49 -2.26-225 -143 -1.85 -1.74 -2.96 -1.57 -2.32 -2.14-200 -129 -1.71 -1.62 -2.73 -1.46 -2.15 -2.02-175 -115 -1.58 -1.50 -2.50 -1.35 -1.98 -1.90-150 -101 -1.45 -1.37 -2.27 -1.24 -1.81 -1.79-125 -87 -1.30 -1.23 -2.01 -1.11 -1.60 -1.59-100 -73 -1.15 -1.08 -1.75 -0.98 -1.39 -1.38-75 -59 -1.00 -0.94 -1.50 -0.85 -1.18 -1.18-50 -46 -0.84 -0.79 -1.24 -0.72 -0.98 -0.98-25 -32 -0.68 -0.63 -0.98 -0.57 -0.78 -0.770 -18 -0.49 -0.46 -0.72 -0.42 -0.57 -0.5725 -4 -0.32 -0.30 -0.46 -0.27 -0.37 -0.3750 10 -0.14 -0.13 -0.21 -0.12 -0.16 -0.2070 21 0 0 0 0 0 0100 38 0.23 0.22 0.34 0.20 0.28 0.28125 52 0.42 0.40 0.62 0.36 0.51 0.52150 66 0.61 0.58 0.90 0.53 0.74 0.75175 79 0.80 0.76 1.18 0.69 0.98 0.99200 93 0.99 0.94 1.46 0.86 1.21 1.22225 107 1.21 1.13 1.75 1.03 1.45 1.46250 121 1.40 1.33 2.03 1.21 1.70 1.71275 135 1.61 1.52 2.32 2.38 1.94 1.96300 149 1.82 1.71 2.61 1.56 2.18 2.21325 163 2.04 1.90 2.90 1.74 2.43 2.44350 177 2.26 2.10 3.20 1.93 2.69 2.68375 190 2.48 2.30 3.50 2.11 2.94 2.91400 204 2.70 2.50 3.80 2.30 3.20 3.25425 218 2.93 2.72 4.10 2.50 3.46 3.52450 232 3.16 2.93 4.41 2.69 3.72 3.79475 246 3.39 3.14 4.71 2.89 3.98 4.06500 260 3.62 3.35 5.01 3.08 4.24 4.33525 274 3.86 3.58 5.31 3.28 4.51 4.61550 288 4.11 3.80 5.62 3.49 4.79 4.90575 302 4.35 4.02 5.93 3.69 5.06 5.18600 316 4.60 4.24 6.24 3.90 5.33 5.46625 330 4.86 4.47 6.55 4.10 5.60 5.75650 343 5.11 4.69 6.87 4.31 5.88 6.05675 357 5.37 4.92 7.18 4.52 6.16 6.34700 371 5.63 5.14 7.50 4.73 6.44 6.64725 385 5.90 5.38 7.82 4.94 6.73 6.94750 399 6.16 5.62 8.15 5.16 7.02 7.25775 413 6.43 5.86 8.47 5.38 7.31 7.55800 427 6.70 6.10 8.80 5.60 7.60 7.85825 441 6.97 6.34 9.13 5.82 7.89 8.16850 454 7.25 6.59 9.46 6.05 8.19 8.48875 469 7.53 6.83 9.79 6.27 8.48 8.80900 482 7.81 7.07 10.12 6.49 8.78 9.12925 496 8.08 7.31 10.46 6.71 9.07 9.44950 510 8.35 7.56 10.80 6.94 9.37 9.77975 524 8.62 7.81 11.14 7.17 9.66 10.091000 538 8.89 8.06 11.48 7.40 9.95 10.421025 552 9.17 8.30 11.82 7.62 10.24 10.751050 566 9.46 8.55 12.16 7.95 10.54 11.091075 580 9.75 8.80 12.50 8.18 10.83 11.431100 593 10.04 9.05 12.84 8.31 11.12 11.771125 607 10.31 9.28 13.18 8.53 11.41 12.111150 621 10.57 9.52 13.52 8.76 11.71 12.471175 635 10.83 9.76 13.86 8.98 12.01 12.811200 649 11.10 10.00 14.20 9.20 12.31 13.151225 663 11.38 10.26 14.54 9.42 12.59 13.501250 677 11.66 10.53 14.88 9.65 12.88 13.861275 690 11.94 10.79 15.22 9.88 13.17 14.221300 704 12.22 11.06 15.56 10.11 13.46 14.581325 718 12.50 11.30 15.90 10.33 13.75 14.941350 732 12.78 11.55 16.24 10.56 14.05 15.301375 746 13.06 11.80 16.58 10.78 14.35 15.661400 760 13.34 12.05 16.92 11.01 14.65 16.02

1 lb. per square in. = 27.7 inches w.g.

1 oz per square in. = 1.7 inches w.g.

1 inch mercury = 13.6 inches w.g.

1 inch w.g. = 0.249 kPa

Temp.deg. F

Temp.deg. C

Carbon steelCarbon-MolyLow-Chrome

(thru 3 Cr Mo)

5 Cr Mothru

9 Cr Mo 18

Austeniticstainless

steelsCr 8 Ni

12 Cr17 Cr27 Cr

25 Cr20 Ni

Monel67 Ni30 Cr

Thermal Expansion of Pipe (in inches/100 feet) Pressure Equivalents


Page 86

CONVERSION FACTORS

MULTIPLY BY TO OBTAINAtmospheres 33.90 Feet of waterAtmospheres 29.92 Inches of mercuryAtmospheres 10330 Kilograms/sq.m.Atmospheres 14.70 Pounds/sq. in.Atmospheres 760 M.M. of mercuryAtmospheres 1.058 Tons/sq. ft.Bars 1.0 x 106 Dynes/sq. cm.Barrels (42 gals.) 0.84 Barrels (50 gals.)British Thermal Units 777.5 Foot-poundsBritish Thermal Units 3.927 x 10-4 Horse-power hrs.British Thermal Units 1054.6 JoulesBritish Thermal Units 0.2520 Kg.-caloriesBritish Thermal Units 2.928 x 10-4 KW.-hoursBrisith Thermal Units 0.5556 P.C.U. (Pound-Cent. Unit)B.T.U./cube ft. 8.90 Kg.-cal/cu. meterB.T.U./Hr. 0.2520 Kg.cal/Hr.B.T.U./Minute 12.96 Ft.-Lbs./sec.B.T.U./Minute 0.02356 Horse-powerB.T.U./Minute 0.01757 KilowattsB.T.U./Pound 0.556 Gm.cal./gm.B.T.U./Pound/deg.F. 1.0 Gm.cal./gm./deg.C.B.T.U./Pound mol 0.556 Gm.cal./gm.molB.T.U./Sq.Ft. 0.2712 Gm.cal./sq.cm.B.T.U./Sq.Ft. 2.712 Kg.cal./sq.m.B.T.U./Sq.Ft./in. 0.6892 Gm.cal./sq.cm./cm.B.T.U./Hr. 2.93 x 10-4 KW/HoursB.T.U./Sq.Ft./in. 6.892 Kg.cal./sq.m./cm.Centimeters 0.0328 FeetCentimeters 0.3937 InchesCentimeters of mercury 0.01316 AtmospheresCentimeters of mercury 0.4461 Feet of waterCentimeters of mercury 5.36 Inches of waterCentimeters of mercury 136.0 Kgs./sq. meterCentimeters of mercury 27.85 Lbs./sq.ft.Centimeters of mercury 0.1934 Lbs./sq.in.Centimeters/deg.C. 0.2188 Inches/deg.F.Centimeters/sec. 1.969 Feet/min.Centimeters/sec. 0.03281 Feet/sec.Centimeters/sec. 0.036 Km./HoursCentimeters/sec. 0.60 Meters/min.Centimeters/sec. 0.02237 Miles/HourCubic Centimeters 6.29 x 10-6 Barrels (42’s)Cubic Centimeters 3.531 x 10-5 Cubic FeetCubic Centimeters 6.102 x 10-2 Cubic inchesCubic Centimeters 10-6 Cubic MetersCubic Centimeters 1.308 x 10-6 Cubic YardsCubic Centimeters 2.642 x 10-4 GallonsCubic Centimeters/hr. 0.000151 Barrels (42’s)/DayCubic cm./gm. 0.01602 Cu.ft./lb.Cubic cm./gm.mol 0.01602 Cu.ft./lb.molCubic Feet 0.1781 Barrels (42’s)Cubic Feet 1728 Cubic inchesCubic Feet 0.02832 Cubic metersCubic Feet 0.03704 Cubic yardsCubic Feet 7.481 GallonsCubic Feet 28.32 LitersCubic Feet/min. 472.0 Cu.cm./sec.Cubic Feet/min. 0.1247 Gallons/sec.Cubic Feet/min. 62.43 Lbs. of water/minuteCubic Feet/pound 62.43 Cu.cm./gm.Cubic Feet/second 60 Cu.ft./min.Cubic Feet/second 26915 Gallons/hr.Cubic Feet/second 15380 Barrels (42’s)/DayCubic Feet/sec./sq.ft. 0.0305 Liters/sec./sq.cm.Cubic Inches 16.39 Cubic centimetersCubic Inches 5.787 x 10-4 Cubic feetCubic Inches 1.639 x 10-5 Cubic metersCubic Inches 2.143 x 10-5 Cubic yardsCubic Inches 4.329 x 10 GallonsCubic Meters 6.29 Barrels (42’s)Cubic Meters 35.31 Cubic feetCubic Meters 61023 Cubic inchesCubic Meters 1.308 Cubic yards

MULTIPLY BY TO OBTAINCubic Meters 264.2 GallonsErgs 10-7 JoulesFeet 30.48 CentimetersFeet 0.3048 MetersFeet of Water 0.0295 AtmospheresFeet of Water 2.241 Centimeters of mercuryFeet of Water 0.8826 Inches of mercuryFeet of Water 304.8 Kgs./sq. meterFeet of Water 62.43 Pounds/sq.ft.Feet of Water 0.4335 Pounds/sq.in.Feet/degree F. 54.864 Cm./degree C.Feet/minute 0.5080 Cm./secondFeet/minute 0.01667 Feet/secondFeet/minute 0.01829 Km./hourFeet/minute 0.3048 Meters/minuteFeet/minute 0.01136 Miles/hourFeet/second 30.48 Cm./secondFeet/second 1.097 Km./hourFeet/second 18.29 Meters/min.Feet/second 0.6818 Miles/hourFoot-pounds 1.286 x 10-3 B.T.U.Foot-pounds 1.356 x 10-7 ErgsFoot-pounds 5.050 x 10-7 Horse-power hoursFoot-pounds 1.356 JoulesFoot-pounds 3.241 x 10-4 Kg.-caloriesFoot-pounds 0.1383 Kg.-metersFoot-pounds 3.766 x 10-7 Kw.-hoursFoot-pounds 7.141 x 10-4 P.C.U.Foot-pounds/Min. 3.030 x 10-5 Horse-powerFoot-pounds/Min. 2.260 x 10-5 KilowattsFoot-pounds/Sec. 7.717 x 10-2 B.T.U./Min.Foot-pounds/Sec. 1.818 x 10-3 Horse-powerFoot-pounds/Sec. 1.945 x 10-2 Kg.-cal/min.Foot-pounds/Sec. 1.356 x 10-3 KilowattsGallon (Imperial) 1.20096 U.S. GallonsGallons (U.S.) 0.0238 Barrels (42’s)Gallons (U.S.) 0.020 Barrels (50’s)Gallons (U.S.) 3785 Cubic centimetersGallons (U.S.) 0.1337 Cubic feetGallons (U.S.) 231 Cubic inchesGallons (U.S.) 3.785 x 10-3 Cubic metersGallons (U.S.) 4.951 x 10-3 Cubic yardsGallons (U.S.) 3.785 LitersGallons/Hour 0.5715 Barrels (42’s)/dayGallons/Hour 0.480 Barrels (50’s)/dayGallons/Hour 3.71 x 10-5 Cu.ft./sec.Gallons/Minute 34.3 Barrels (42’s)/dayGallons/Minute 28.8 Barrels (50’s)/dayGallons/Minute 2.228 x 10-3 Cu.ft./sec.Gallons/Minute 0.227 Cu.meters/hr.Gallons/Minute 0.06308 Liters/sec.Gram-centimeters 9.302 x 10-8 B.T.U.Gram-centimeters 980.7 ErgsGram-centimeters 7.233 x 10-5 Foot-poundsGram-centimeters 2.344 x 10-8 Kg.-caloriesGrams/centimeter 5.60 x 10-3 Pounds/inchGrams/millimeter (c.c.) 1 Spec. Grav. at 4 deg.C.Grams/cubic cm. 62.43 Lbs./cu.ft.Grams/cubic cm. 0.03613 Lbs./cu.in.Grams/sq.cm. 9.678 x 10-4 AtmospheresGrams/sq.cm. 0.07355 Cms. of mercuryGrams/sq.cm. 3.281 x 10-2 Feet of waterGrams/sq.cm. 0.394 Inches of waterGrams/sq.cm. 10 Kgs./sq. meterGrams/sq.cm. 2.048 Lbs./sq.ft.Grams/sq.cm. 1.422 x 10-2 Lbs./sq.in.Inches 2.54 CentimetersInches of mercury 0.03342 AtmospheresInches of mercury 1.133 Feet of waterInches of mercury 345.3 Kgs./sq. meterInches of mercury 70.73 Lbs./sq.ft.Inches of mercury 0.4912 Lbs./sq.in.Inches of water 2.458 x 10-3 Atmospheres


Page 87

CONVERSION FACTORS

MULTIPLY BY TO OBTAINInches of water 0.07355 Inches of mercuryInches of water 0.1869 Cms. of mercuryInches of water 25.40 Kgs./sq. meterInches of water 0.5781 Ounces/sq.in.Inches of water 5.202 Lbs./sq.ft.Inches of water 0.03613 Lbs./sq.in.Inches/degrees F. 4.572 Cms./degree C.Kilograms 980665 DynesKilograms 70.93 PoundalsKilograms 2.205 PoundsKilograms 1.102 x 10-3 Tons (short)Kilogram-calories 3.968 B.T.U.Kilogram-calories 3086 Foot-poundsKilogram-calories 1.558 x 10-3 H.P.-hoursKilogram-calories 4186 JoulesKilogram-calories 426.6 Kg.-metersKilogram-calories 1.162 x 10-3 Kw.-hoursKilogram-calories 2.205 P.C.U.Kg.-cal./hour/sq.meter 0.3685 B.T.U./hours/sq.ft.Kg.-cal/hr./sq.m./deg.C. 0.2048 B.T.U./hr./sq.ft./deg.F.Kg.-calories/min. 51.43 Foot-pounds/sec.Kg.-calories/min. 0.09351 Horse-powerKg.-calories/min. 0.06927 KilowattsKilogram-meters 9.302 x 10-3 B.T.U.Kilogram-meters 9.807 x 107 ErgsKilogram-meters 7.233 Foot-poundsKilogram-meters 2.344 x 10-3 Kg.-caloriesKilogram-meters 2.724 x 10-6 Kilowatt-hoursKilogram-meters 0.005165 P.C.U.Kilograms/cu. meters 10-3 Gram/cu.cm.Kilograms/cu. meters 0.06243 Pounds/cu.ft.Kilograms/cu. meters 3.613 x 10-5 Pounds/cu.in.Kilograms/meter 0.6720 Pounds/footKilograms/sq. meter 9.678 x 10-5 AtmospheresKilograms/sq. meter 98.07 BarsKilograms/sq. meter 7.355 x 10-3 Cms. of mercuryKilograms/sq. meter 3.281 x 10-3 Feet of waterKilograms/sq. meter 2.896 x 10-3 Inches of mercuryKilograms/sq. meter 0.2048 Pounds/sq.ft.Kilograms/sq. meter 1.422 x 10-3 Pounds/sq.in.Kilometers 3281 FeetKilometers 0.6214 MilesKilometers 1094 YardsKilometers/hour 27.78 Cms./sec.Kilometers/hour 54.68 Feet/min.Kilometers/hour 0.9113 Feet/sec.Kilometers/hour 16.67 Meters/min.Kilometers/hour .6214 Miles/hr.Kilowatts 56.92 B.T.U./min.Liters 6.29 x 10-3 Barrels (42’s)Liters 103 Cubic centimetersLiters 0.0351 Cubic feetLiters 61.02 Cubic inchesLiters 1.308 x 10-3 Cubic yardsLiters 0.2642 Gallons (U.S.)Liters 1.057 Quarts (liq.)Liters/gram mol 16.02 Cu.ft/lb. molLiters/kilogram 0.01602 Cu.ft./lb.Liters/minute 9.06 Barrels (42’s)/DayLiters/minute 60000 Cu.cm./hourLiters/minute 5.885 x 10-4 Cu.ft./sec.Liters/minute 15.851 Gals./hourLiters/minute 4.403 x 10-3 Gals./sec.Liters/sec./sq.cm. 32.8 Cu.ft./sec./sq.ft.Mercury at 0 deg. C. 13.595 Grams/cu.cm.Mercury at 0 deg. C. 849 Pounds/cu.ft.Meters 3.281 FeetMeters 39.37 InchesMeters 1.094 YardsMeters/degree C. 1.824 Feet/degrees F.Meters/minute 1.667 Cms./sec.Meters/minute 0.05468 Feet/sec.Meters/minute 0.06 Kilometers/hour

MULTIPLY BY TO OBTAINMeters/minute 0.03728 Miles/hourMeters/second 196.8 Feet/min.Meters/second 3.6 Kilometers/hourMeters/second 2.237 Miles/hourMiles 5280 FeetMiles 1.609 KilometersMiles 1760 YardsMiles/hour 44.70 Cms./sec.Miles/hour 88 Feet/min.Miles/hour 1.467 Feet/sec.Miles/hour 1.609 Kilometers/hourMiles/hour 26.82 Meters/min.Ounces 28.35 GramsOunces 0.0625 PoundsOunces (fluid) 1.805 Cubic inchesOunces (fluid) 0.02957 LitersOunces/sq. inch 1.732 Inches of waterPounds of water 0.01602 Cubic feetPounds of water 27.68 Cubic inchesPounds of water 0.1198 GallonsPounds of water/min. 2.669 x 10-4 Cu.ft./sec.Pounds of water/hr. 2.669 x 10-4 Cu.ft./min.Pounds of water/hr. .1198 Gallons/hourPounds/cubic foot 0.01602 Grams/cu.cm.Pounds/cubic foot 16.02 Kgs./cu. meterPounds/cubic foot 5.787 x 10-4 Pounds/cu.in.Pounds/cubic inch 27.68 Grams/cu.cm.Pounds/foot 1.488 Kgs./meterPounds/foot/hr. 4.13 x 10-3 Grams/cm./sec.Pounds/foot/hr. 0.413 CentipoisesPounds/gallon 0.1198 Grams/cu.cm.Pounds/inch 178.6 Grams/cm.Pounds/square foot 0.01602 Feet of waterPounds/square foot 4.882 Kgs./sq. meterPounds/square foot 6.944 x 10-3 Pounds/sq.in.Pounds/square inch 0.06804 AtmospheresPounds/square inch 2.307 Feet of waterPounds/square inch 2.036 Inches of mercuryPounds/square inch 51.7 Mm. of mercuryPounds/square inch 703.1 Kgs./sq. meterPounds/square inch 144 Pounds/sq.ft.Square centimeters 1.076 x 10-3 Square feetSquare centimeters 0.1550 Square inchesSquare centimeters 10-4 Square metersSquare feet 2.296 x 10-5 AcresSquare feet 929 Square cms.Square feet 144 Square inchesSquare feet 0.0929 Square metersSquare feet 3.587 x 10-8 Square milesSquare inches 6.452 Square cms.Square inches 6.944 x 10-3 Square feetSquare inches 645.2 Square mms.Square kilometers 247.1 AcresSquare kilometers 10.76 x 106 Square feetSquare kilometers 0.3861 Square milesSquare meters 10.76 Square feetSquare meters 1.196 Square yardsSquare yards 2.066 x 10-4 AcresSquare yards 9 Square feetSquare yards 0.8361 Square metersSquare yards 3.228 x 10-7 Square milesSteres 1000 Liters


Page 88

QUALITY, INNOVATION, SERVICE

Thorburn Equipment Inc. is committed to a policy ofcontinuous development and research to provide flexiblepiping products that set the industry standards for quality,safety, environmental protection, durability and ease ofhandling. Therefore, the company reserves the right toalter and modify designs without notice.

WARNING

Since performance depends largely upon local conditionsand proper care in use, which are outside of ThorburnEquipment's control, Thorburn Equipment Inc. can acceptno liability for any defect, damage, injury or loss arisingfrom the products and information contained in thiscatalogue. Readers and customers are encouraged toconduct their own tests before using any product.

THORBURN'S WARRANTYThorburn warrants its products to be free from any defects of workmanship and material. Thorburn's warranty shall onlycover the components of such assemblies manufactured by Thorburn. Should any such defects be discovered withinthree (3) months from the date of purchase by the end user, the questionable part should be returned to Thorburn. If, uponinspection, the part proves to be defective, Thorburn will furnish a replacement or, at its option, repair the part.

This warranty shall not apply to any part or parts of expansion joints, fittings or connectors products if it has been installed,altered, repaired or misused, through negligence or otherwise, in a way that in the opinion of Thorburn affects the reliabil-ity of, or detracts from, the performance of the product. Nor does this warranty cover replacements or repairs necessitatedby loss or damage resulting from any cause beyond the control of Thorburn, including but not limited to acts of God, actsof government, floods and fires.

The obligation of Thorburn under this warranty is limited to making a replacement part available or the repair of thedefective part, and does not include the furnishing of any labour involved or connected therewith, such as that required todiagnose trouble or to remove or install any such product, nor does it include responsibility for any transportation ex-penses or any damages or losses incurred in transportation in connection therewith.

The foregoing is in lieu of any other warranties, expressed, implied or statutory, and Thorburn neither assumes norauthorizes any person to assume for Thorburn any other obligation or liability in connection with the sale of its products.

ACKNOWLEDGEMENTSDesign and preparation: Robert Thorburn

Typesetting and layout: Viviane Katz

Proof reading: Marie Valin

Printing: Québecor

Fluorel is a trademark of 3M companiesViton, Hypalon, Teflon are trademarks of DuPont Power-Flex is manufactured for Thorburn by Ethelene Corporation

The Heart & Soul of the CompanyOur people have turned Thorburn into a leanmanufacturing company. We’re nimble, ready torespond instantly to your needs with products andservices unique in our industry. Through ourcombined efforts, we have designed systems foradministration, engineering and manufacturing,based on what we know and learn about eachcustomer and application.

Our company may be known by its products but Thorburn knowsthat our products are the result of people who emphasize core

competences, work for excellence and keep the customer satisfied.


Thorburn’s metallic expansion joints arecustom designed to accommodate specificpipe and duct motion problems caused bythermal growth, pressure contraction, machinevibration, seismic disturbances andinstallation irregularities. Thorburn’s metallicexpansion joints transfer various mediasincluding steam, emission gases, water, acids,alkalies, hydrocarbons and molten sodium.

Metallic Bellows Expansion Joint Technology

Thorburn’s exclusive 24 hour fieldservicing and repairing by skilledcraftsmen, technicians andengineers at your service.

Thorburn’s metallic expansion joints can beused to relieve stress and absorb movementin aerospace hot air ducting, hydraulic and fuelpiping systems.

Thorburn’s Single-Flex hightemperature diesel generatingexhaust expansion joint system.

Thorburn in-line universal joint used to absorb16” of axial movement in a water treatmentplant piping system.

Thorburn’s tied Dual-Flex expansion jointused to transfer high pressure steam at acogeneration facility.

Applications which useThorburn’s metallicexpansion joint technology■ Fossil fuel power generating■ Gas turbines, nuclear reactors

(primary and secondary systems)■ Petroleum refining and chemical

processing■ Hot metal industries■ Ship building ■ Cogeneration■ District heating and steam

distribution systems■ HVAC equipment engine exhaust

system■ Aviation and aerospace duct work■ Pulp and paper processing■ Heat exchanges■ Industrial piping systems

Quality Assurance■ Designs as per EJMA and ASME

Section III, VIII, B31.1, B31.3■ Welders and welding procedures

ASME section IX■ ASME Section III nuclear service

Class 1, 2, 3■ Certification ASME Section III

NQA-1 NCA-4000, CSA N285.0■ Certification ISO 9001/CAN3 Z299.1

IN A JAM?THORBURN’S 48

HOURS EMERGENCYSHIPMENT POLICYCAN SOLVE YOUR

PROBLEM!

PIPE SIMULATING TECHNOLOGY

TORONTO / ONTARIOTHORBURN FLEX INC.

49-6A The Donway West, Suite 815Don Mills, Ontario M3C 2E8

Tel.: (905) 715-7013Fax: (905) 715-7816

MONTREAL HEAD OFFICEMARITIMES / WESTERN CANADATHORBURN FLEX INC.Manufacturing Division173 Oneida DrivePointe-Claire, Quebec, Canada H9R 1A9Tel.: (514) 695-8710 Fax: (514) 695-8716

UNITED STATESTHORBURN FLEX INC.

151 New Park AvenueHartford, Connecticut, USA 06106

Tel.: 1-800-363-6613Fax: (514) 695-8716

TOLL FREE: 1-800-363-6613 - CALL US NOW AND LET US HELP YOU!


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Non-Metallic Expansion Joints