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Trelleborg Sealing Solutions No.2, 2007
in thegrooveThe world of seals and service
Oil & Gas
Contracting and ExpandingOrkot® bushings, frozen to shrink fit housings, are used on aproduction platform in the Gulf of Mexico
Semicon
Smallest will soon be biggestNanotechnology will make electronicappliances smaller and potentiallythe quantum computer a reality
Chemical & Processing
Keeping up with the grindSealing in coffee machines that can brew up to 300 cups of coffee per hour
Research &Development
Oil & Gas
Oil & Gas
Oil & Gas
Chemical &Processing
Semicon
ProductCapabilities
Editorial 3
News 4
A material matter 8One seal may appear to be the same as another but leading edge technology allows them to function differently
Working to the extreme 10Our portfolio of sealing products is engineered to work at theextremes required by the oil & gas industry
The giants of oil & gas 14FlexiMoldTM is ideal for production of giant seals needed for large offshore equipment
Contracting and Expanding 18With Orkot® bushings, frozen to fit their housings, corrosion issues are solved on a production platform
Keeping up with the grind 22WMF coffee makers, designed to brew up to 300 cups an hour, adopts a Turcon® MF sealing solution
Smallest will soon be biggest 24Nanotechnology is already a reality in the semiconductor industry making continued miniaturization possible
Variations on a theme 28New Turcon® Variseal® profiles extend the uses of this popular product in processing applications
18
22
24
Contents
3
EditorialMeeting emerging sealing needs of the oil & gas industry, chemical processing, food production and for semiconductor fabrication
Welcome to our sixth edition of in the groove focusing on sealingsolutions in the oil and gas sector.
FlexiMoldTM, used to produce giant seals, is ideal for the offshoreindustry where equipment is on a large scale. One of their mainuses is to energize Turcon® PTFE based seals. This is just one ofour range of products we supply to the oil and gas sector. Findout more in ‘Working to the extreme’.
Our case story is about SBM Atlantia who provides turnkeyengineering, design and construction of offshore productionplatforms. We detail a unique solution we provided for NeptuneTLP, where Orkot® bushings were shrunk to fit into egg shapedhousings.
Variseal® is an important product not only to oil and gasproducers but also other sectors. Continually trying to meetemerging needs of these segments, a number of new profileshave been developed. We give an overview of these.
Our featured story for the food and beverage market is aboutseals supplied to WMF, the largest professional coffee machinemaker in the world. The sealing solution for them was in Turcon®
MF, specially formulated for hygienic applications. Like all newproducts and materials we develop, this went through ourresearch and development process, the subject of our first story.
Semiconductor manufacturing is always at the leading edge, andthis continues to be the case. Nanotechnology will allow chipsand electronic devices to become even smaller and potentiallymake the quantum computer a reality. Why not read our articleon this emerging technology.
Finally, as always, if you have any comments on our latest in thegroove, email me at [email protected]. We welcome yourviews.
Dr. Sandro Johannes SilverioGlobal Director - CPI, Semicon, Oil & Gas segments
International Technical Fair
23.9.2007 - 28.9.2007Plovdiv, Bulgaria
The International Technical Fair exhibits thelatest developments of world leaders in
machine engineering, automobiles,transport, information technologies,
software, electronics, electricalengineering, construction, chemistry,
power engineering, ecology, etc.
Katowice 2007International Trade Fair for Mining, Power Generation
and Metallurgy11.9.2007 - 14.9.2007, Katowice, Poland
The International Trade Fair for Mining, Power Generation and Metallurgy inKatowice is the largest European exhibition presenting the latest achievements of this
industry. Coming from all over the world, companies exhibiting represent the mining andmetallurgical sectors and their suppliers.
49th InternationalEngineering Fair -
MSV 20071.10.2007 - 5.10.2007
Brno, Czech Republic
MSV 2007 is the largesttechnology trade fair in central
Europe with over 2,000exhibiting companies,
including over 800 foreignexhibitors. MSV is a unique
portal for news, innovations andkey trends from all branches of
the engineering industry.
SEMICON Taiwan2007
12.9.2007 - 14.9.2007Taipei, Taiwan , Hall 1, Stand 2738
SEMICON® Taiwan is the preferred event forthe buyers in this region to see and comparesemiconductor equipment and relatedproducts and services from all over theworld. Besides being a leader inwafer fab processing, Taiwan ishome to many leadingsemiconductor packagingand test companies.
i-SEDEX 200718.9.2007 - 20.9.2007
Seoul, Korea
i-Sedex is Korea’s largestinternational exhibition in thesemiconductor and display area.It involves domestic and foreigndevice companies. It providesthe platform for companies inthis sector to show theirproducts and exchange ideas.
newsnewsExhibitions
Upcoming
4
To see all exhibits,visit Service/Fairs onour website:
www.tss.trelleborg.com
September sees us onceagain at OffshoreEurope. It’s held at theAberdeen Exhibition andConference Centre atBridge of Don, Aberdeenfrom 4th to 7thSeptember . We’reexhibiting with ourother colleagues fromwithin Trelleborg Groupwho are also involved inthe oil and gas industry.We’l l have on showeverything from glass microspheres to risers and fromfenders to seals. Why not come and visit us on stand 1177.
On show
5
This year’s SEMICON West show took place from July 17th to July 19th in San Francisco,California. Trelleborg Sealing Solutions was represented by a global team from theUnited States, Germany, the UK, Korea and Taiwan.
SEMICON West is the largest and most comprehensive industry event in the UnitedStates, hosting more than 1,500 key players in the semiconductor, FPD, MEMS, displayand microelectronics industries. The conference, held in San Francisco, California,showcases the latest products andtechnologies currently used inmanufacturing while highlightingthe technology of tomorrow.
“It was a great atmosphere,” saysMark Russel l , SemiconductorSegment Manager for TrelleborgSealing Solutions Americas. “Wewere in a super location in theSouth Hall , and we had anoutstanding time interacting withpotential customers and also withone another.
In addition to the show, there wasalso a global semiconductor group meeting among the Trelleborg team that took placeon the 20th. With representatives from all over the world, the meeting was veryeffective. The team was able to work on a global semiconductor industry plan, as well asget insights into what goes on in other parts of the world.”
in bonny Scotland
Trelleborg Sealing SolutionsIn the groove, No. 2, 2007© Trelleborg AB, 2007. All rights reserved® All trademarks are the property of Trelleborg AB.The turqouise color is a registered trademark of Trelleborg AB.
Editorial Office:Trelleborg Sealing Solutions Germany GmbH, Handwerkstraße 5-7, 70565 Stuttgart,Germany Email: [email protected] Web: www.tss.trelleborg.com
Editorial team:Heather Castleman, Donna Guinivan, Whitney Killip, Wendy Sack, Dr. SandroSilverio, Robert Zahiri
Segment team:Dr. Burkhard Ledig, Eberhard Baisch, Elke Vöhringer-Klein, Bill Allan, Jonas Karlsson,Eric Bucci, Marty Hugney
Responsible under German Press Law: Robert ZahiriGraphic Arts: dialogart, Stuttgart, GermanyPrinting: W. Kohlhammer, Stuttgart, Germany
Disclaimer: The information in this magazine is intended to be for generalreference purposes only and is not intended to be a specific recommendation forany individual application. The application limits for pressure, temperature, speedand media given are maximum values determined in laboratory conditions. Inapplication, due to the interaction of operating parameters, maximum values maynot be achieved. It is vital therefore, that customers satisfy themselves as to thesuitability of product and material for each of their individual applications. Any reliance on information is therefore at the user’s own risk. While every effort ismade to ensure the accuracy of information contained herewith, Trelleborg SealingSolutions cannot warrant the accuracy or completeness of information. For exceptional operating conditions, please contact your Trelleborg SealingSolutions representative.
Success at SEMICON West
6
newsnewsThe term sustainable development involves suchareas as environmental issues, labor conditions,human rights, prevention of corruption and anti-competitive behavior. These are importantissues for Trelleborg Group and to emphasizeour focus on these, a new website area hasbeen created. Here detailed information canbe accessed on environment, social performanceand socioeconomics.
on the web
We’re pleased to announce our new customersupport center focusing on the needs of the oiland gas sector. It’s located in the InnovationCentre, Bridge of Don in Aberdeen, Scotland.Right in the middle of the area’s engineeringactivities, the new facility will providetechnical support to our exist ing anddeveloping customer base in the region.
“In the fast moving and challenging offshoreenvironment new solutions are constantlydemanded,” says Richard Everett, Director ofStrategic Growth Projects, who hadresponsibility for founding the new office.
“With our vast experience and specializedskills, the customer support center will closelyliaise with designers and engineers,” continuesRichard. “It will act as a link between ourmanufacturing and R&D facilities, enabling usto rapidly deliver innovative solutions to meetspecific requirements. Close location, rightwhere the action is, means we can respondrapidly in short timescales, to maximizeoperator efficiency.”
Customer support:
Where the action is!
www.tss.trelleborg.com/sustainability
To view the sustainabilitywebsite go to
Trelleborg Sealing Solutions opens an oil and gascustomer support center in Aberdeen
Sustainability
www.tss.trelleborg.com
For further details on the Trelleborgcustomer supportcenter go to:
7
Claus Barsøe,Business Area
President ofTrelleborg Sealing
Solutions.
Distributor AFMincreases presence inUS Northwest andcentral California In July, Trelleborg Sealing Solutions acquiredthe privately owned US AFM Inc, a rapidlygrowing distributor of hydraulic seals andcustomized rubber components. With itshead office in Portland, Oregon, and anoffice in Fresno, California, the company hasabout 45 employees and annual sales ofapproximately € 9 M ($13 M, SEK 85 M).
“AFM is a profitable and well-managedcompany with a wide range of products. Thisacquisition increases our market presence inthe US Northwest and central California,“ says Claus Barsøe.
Precision sealmanufacturer HCRDwill aid growth May 31 saw the acquisition of Hydro-Components Research & DevelopmentCorporation (HCRD). Employingapproximately 80 people and with annualsales of about € 5.4 M ($7.3 M, SEK 50 M) it isbased in Streamwood, Illinois.Manufacturing high-precision components,it focuses specifically on large diameterseals and bearings.
“HCRD’s technology and products are atthe leading edge of development in thecompany’s area of focus and will make anextremely valuable contribution to us,“
says Claus Barsøe. “The products fit inideally with our current portfolio, willexpand our offering and enable us togrow more rapidly in North America.”
US acquisitions
expandcapabilities in NorthAmerica
8
On the outside, one seal may appear to be thesame as the other. But the technology behindtheir material means that one type can functionvery differently from another. Making sure thecompounds meet industry needs means thatseals can be matched to a specific application,optimizing performance.
Leading edge materials technologyis fundamental to effective sealing
A materialmatter
9
Research & Development
Why are more sealing materials required?
For compatibility with newcontact media
To comply with more stringentregulations
Provision of a solution to acustomer’s specific problem
To withstand increasedtemperature in an application
For improvement inperformance to extend seal life
Systematic development ofmaterials based ontechnological expertise
New compounds reflectlatest industry needs
Trelleborg Sealing Solutions has over 2,000proprietary compounds to its name. That’smore than any other seal developer andmanufacturer. Thousands of hours of researchand unrivalled years of experience combine tomake our sealing formulations successful.
“We invest a substantial amount of resourcesevery year in development of new sealingmaterials,” says Nils Kohlhase, Director,Research and Development Europe. “Ourlaboratories for mixing and testing aresituated globally. We gather ideas fordevelopment projects continuously throughour Innovation Management Process. To dothis we listen to our customers, segmentexperts, sales people and engineers.”
Continuous material evolution is important asthe demands of different industries areconstantly changing. Even though the rangefrom Trelleborg Sealing Solutions may appearto fulfill all requirements, new variations arenecessary to meet the latest challenges.
“There are many reasons why we need toadd materials. Changing market requirementsare always a key focus for us,” continuesKohlhase. “In the chemical processing sectorwe’re facing increasingly aggressive media atextreme temperatures. There are special issuestoo such as explosive decompression in oil &gas applications and sealing in vacuums andplasma in semiconductor processing. When wehave new requirements it is possible that oneof our existing compounds is suitable. If not,then priority is put on creating one that willbe effective. This ensures we can continue tomeet our customers’ needs as quickly aspossible.”
Europe StuttgartHelsingorAshchurchBridgewaterMalta
USA Fort Wayne
Asia TokyoShanghai
Our global research anddevelopment centers arelocated in:
10
In oil and gas applications, seals andbearings need to operate at theextremes of their capabilities.Trelleborg Sealing Solutions provides awide portfolio of products that meetthe most demanding of needs.
On seabeds 3000 meters /9800 feetbeneath the ocean’s surface or drilling12000 meters / 38000 feet belowground, oil and gas equipment issubject to some of the most difficultconditions faced. The seals andbearings within them must stand upto the environment otherwise theycan cause delays for frequent plannedor possibly unplanned maintenance.For oil field operators that meanslengthy and expensive downtime.Trelleborg Sealing Solutions canminimize this by working withengineers to specify the optimumsealing or bearing solution for eachjob.
Resistant to virtually all media, withstandingtemperatures fromcryogenic to 850°C
The product portfolio of TrelleborgSealing Solutions provides seals andbearings that are capable of operatingat extremes. Specifically developedfor the requirements of the oil andgas sector, they wil l withstandmedia such as hydrocarbons, sour gasor corrosion inhibitors. Elastomersolutions are available with operatingtemperatures up to 325°C/ 617°F.While Wills Rings®, the originalmetal O-Ring, are suitable for evencryogenic situations or exceptionaltemperatures up to 850°C/ 1560°F.
Combine these characteristics with theability to operate under pressure,outstanding friction capabilities andan almost unlimited size range, thenthe ultimate solution is available foralmost any oil and gas sealing orbearing need.
Sealing materials and products offered for the oil and gas industry have:
Temperature resistance from cryogenic up to +850°C / 1560 °F
Almost universal chemical resistance; withstanding aggressivesour gas, corrosive fluids, hydrocarbons, carbon dioxide, acids,solvents and amine-based corrosion inhibitors
Excellent thermal stability
Steam and explosive decompression resistance
Good mechanical strengths
Low long-term compression set
NORSOK approval
Sealing solutions meetindustry needs
Oil & Gas
11
12
Isolast® Perfluoroelastomer: the ultimate in elastomer sealing
Isolast® is the Trelleborg Sealing Solutions range of premiumperfluoroelastomers (FFKM). It presents the ultimate inelastomer sealing. Virtually inert and demonstrating almostuniversal chemical compatibility, it is ideal for hydrocarbonprocessing applications. Specialized grades can operate atcontinuous temperatures up to +325°C /+617°F, and speciallyformulated explosive decompression and steam resistantcompounds are available. In addition, the resistance ofIsolast® to amines extends the life of seals in contact withcorrosion inhibitors, a known problem in environmentallyfriendly water-based drilling equipment.
Inventive designs extend seal capabilities
A development of the standard O-Ring, FEP encapsulatedO-Rings consist of a fluoroelastomer or silicone elastomerO-Ring housed within a seamless FEP jacket. They are idealwhen a cost-effective solution is required that offersbetter chemical compatibility, equivalent elasticity toan O-Ring and the added benefit of improvedfriction characteristics. QUAD-RING®, manufacturedfrom the same materials and to the same groovedimensions as standard O-Rings, can directlyreplace these when movements are found tocause twisting, reducing sealing integrity.
Variseal®: field-proven inextremes
An important product to the oil and gasindustry, Variseal® spring-energized Turcon® PTFEseals are field-proven in extreme gas and liquidhandling situations. They have been used in themost demanding of production and refiningapplications and are designed to fit in existing O-Ringgrooves. With the correct selection of PTFE, filled PTFEcompounds and appropriate spring material and profile,Variseal® can provide the highest level of system integrity.Suitable for use even in the most aggressive and corrosiveof chemical media, they provide excellent explosivedecompression resistance.
Flexible product and material offerings inelastomers
A wide range of elastomer solutions is available. For staticapplications, any size of O-Ring (standard or custom) can bemanufactured, even to giant dimensions, alongside custommolded designs and bonded products. These can be supplied inmaterials ranging from basic elastomer grades to leading edge,high specification compounds, particularly developed for the oiland gas industry. HNBR and FKM materials, including our highspecification Resifluor®, are engineered to maximizeeffectiveness at high temperatures and when in contact withaggressive chemicals.
13
Oil & Gas
Turcon®: better wear and frictioncharacteristics
A range of Turcon® PTFE based solutions offers advanced sealingfor rotary applications. In Turcon® Glyd Ring®, Turcon® Roto
Glyd Ring® and Turcon® AQ-Seal®, an elastomer O-Ring orQUAD-RING® energizes a PTFE sealing ring. Engineered to
reduce friction with high wear and abrasion resistance,they are ideal for high-pressure situations. The Double
Delta® fits in an existing O-Ring groove and expandsthe parameters of the O-Ring used with it, improvingwear and friction characteristics.
Bearing solutions
Bearings manufactured from Turcite®, anengineered PTFE based thermoplastic, prevent metal
to metal contact between piston and rods, bores andglands, absorbing transverse load and with low
friction, minimize stick-slip. Bearings from Orkot®, anon-asbestos synthetic, composite material incorporating
solid lubricants, provide exceptional wear resistance andvirtually no swell in water. Ideal for subsea environments
they offer effective and maintenance free solutions in seawater.
Wills Rings®: metal seals for high temperatures
Wills Rings® are the original metal seals, providing the optimumsolution in static sealing on connectors, flanges and plates for gasesand liquids. They operate effectively under extremes oftemperature, ranging from cryogenic to 850°C /1560°F and severepressures, often being utilized when fire safe sealing is required.Wills Rings® are available in a variety of metals, O or C cross sectionswith either pressure filled or system pressure activation.
See article on FlexiMoldTM on
page 14,
our new technology forproduction of giant seals
The
of oil & gasgiants
Oil & Gas
In the oil and gas industry theequipment used tends to be on a largescale. The typical diameter of a swivelstack and some of the connectors usedcan be two meters /six feet. The sealsrequired for these are beyond thesizes available as standard moldedcomponents, and usually the volumesrequired can never justify productionwith a dedicated tool.
Large seals for largeapplications
The conventional method of producing largediameter O-Rings and seals is by splicingextruded cord. However, inherent in thismethod of fabrication is a weakness at thejoin, along with poor surface finish anddifficulty in achieving tight tolerances.
FlexiMoldTM is a superior solution; aproprietary technology specifically developed byTrelleborg Sealing Solutions for manufacturingof large O-Rings and other seal profiles. Withthis method, production of giant high qualityseals is possible without the leadtime andcost associated with dedicated tooling.Importantly, the FlexiMoldTM processeliminates the risks associated with splicedO-Rings, ensuring the full visual, dimensionaland functional integrity of a molded seal.
Superior giant sealsfabricated by theproprietary FlexiMoldTM
process
14
Equipment in the oil and gasindustry tends to be on a largescale. That means seals producedfrom the unique FlexiMoldTM
process are an ideal solution.
An important use for large FlexiMoldTM
O-Rings in oil and gas applications is as anenergizer for Turcon® seals such as RotoGlydring®, Vector or VL SealTM.
“Turcon® PTFE based seals are ideal for usein oil and gas applications,” says Bill Allan,European Oil and Gas Segment Manager.“They withstand extreme temperaturesand are resistant to virtually all media. Asthese seals are machined, they can beproduced in large sizes up to three meters/ten feet in diameter.
“However, PTFE has no elasticity and needsto be energized. In Variseal®, this is donewith a spring, but for closed grooves thisdesign is not compact enough. For thesean O-Ring energized seal is better. Up untilnow it has been difficult to source anO-Ring to do this with the requiredintegrity, cost-effectively. The tool costtended to make them too expensive formost customers.”
FlexiMoldTM is anexcellent energizer
“The FlexiMoldTM process now meanswe have the ideal energizer for ourlarge Turcon® PTFE seals,” continuesBill. “FlexiMoldTM O-Rings have thesame integrity as a molded productbut more importantly can bemanufactured without the need for adedicated tool. When O-Rings arefabricated in Isolast®, theircombination with a Turcon® PTFEseal represents the ultimate inmedia compatibility, capableof operating in extremes oftemperature in dynamicapplications. “
Turcon® PTFE andIsolast® sealcombination providesthe ultimate in mediacompatibility
15
16
Features and Benefits:• Capable of producing any diameter above
500 mm/ 20 inches• Full visual and dimensional product integrity• High quality, tight tolerances• Performance capabilities matching molded
O-Rings• Elimination of leakage risks associated with
spliced O-Rings• No tooling charges for standard cross
sections• Available in Isolast® perfluoroelastomer and
a wide range of other elastomers
Service:• O-Rings supplied to standards ISO 3601-1,
AS568 and JIS B 2401• Product inspected to zero defect policy• Parts packaged and labeled individually• Washed and packed in Class 100 Cleanroom
if required• Express delivery service available
Materials:• Isolast® perfluoroelastomer (FFKM)• ResifluorTM High Performance Fluorinated
Elastomers• Fluorocarbon (FKM)• Ethylene Propylene (EPDM)• Acrylonitrile Butadiene Rubber (HNBR)• FDA, USP Class IV approved compounds
Product availability:
Sizes:• Recommended for diameters
> 500 mm / 20 inches Cross Sections:
• All standard cross sections available withoutpurchase of dedicated tool
• Larger and special size cross sectionsavailable upon request
• Non-standard seal profiles available uponrequest
International Cross Reference Standard Section, Section,
mm inches
Metric 3.00 0.118JIS B 2401 3.10 0.122Metric/JIS 3.50 0.138AS-568 3.53 0.139JIS B 2401 3.55 0.140Metric 4.00 0.157Metric 5.00 0.197JIS B 2401 5.30 0.209AS-568 5.34 0.210Metric/JIS 5.70 0.224AS-568 6.99 0.275JIS B 2401 7.00 0.275Metric 8.00 0.315JIS B 2401 8.40 0.330Metric 10.00 0.394
17
Oil & Gas
Oil and gas applications for FlexiMoldTM seals
Any large scale static sealing requirement
Swivel stacks on Floating Production,Storage and Offloading (FPSO) vessels
Pipeline corrosion monitoring equipment
Connectors both offshore and onshore
Heat exchangers
Compressors
Gas turbines
As an O-Ring energizer for large machinedTurcon® PTFE based seals
18
Oil & Gas
Trelleborg Sealing Solutions solves corrosionissues for SBM Atlantia on an offshore rig inthe Gulf of Mexico. This involved innovativeassembly technology where bushings areshrunk before installation in their housings,to give optimum fit.
Contracting and Expanding
19
SBM Atlantia, headquartered in Houston,Texas, provides turnkey engineering, designand construction of offshore productionplatforms around the world. For one of theselarge scale projects, the Neptune TLP (TensionLeg Platform) in the Gulf of Mexico, SBMAtlantia required eight new bushings to bedesigned and manufactured. They contactedTrelleborg Sealing Solutions Southwest forhelp.
Corroding of pull-in shoehousings in seawater was anissue for SBM Atlantia
The project called for eight bushings to beused in pull-in shoe housings and aid as pivotsfor installation of their SCR (Steel Catenary
Riser) systems. The riser system is the verticalpipeline from the wellhead on the ocean floorto the production platform stationed at thewaterline. A pull-in shoe is a large drum thatis horizontally welded to the platformstructure just above the riser hangers. A craneon the platform is then strung behind this andaids in directing the riser system as it is liftedinto place. Traditionally the pull-in shoehousings were not fitted with bushingsbecause of the weight but seawater wascorroding these parts together, making themno longer usable.
Neptune TLP
The Neptune TLP (Tension Leg Platform) getsits name from the offshore field in which it islocated. The Neptune Field is in the Gulf ofMexico, about 222 km/ 120 nautical miles offthe coast of Louisiana in the southeasternUnited States. The Neptune TLP is the fifthSBM Atlantia SeaStar® TLP in the Gulf ofMexico. It is stationed in 1,311 meters / 4,300ft of water, and has seven subsea wells whichare connected to the facility. The NeptuneTLP has the design capacity to produce up to50,000 barrels of oil and 50 million cubic feetof gas per day.
20
Due to the massive weight of the risers, thebushings, with a diameter of 1,270 mm/ 50inches, needed to be designed to allow thepull-in shoe to continue to rotate underextreme loads. Also, the pull-in shoe system issubmerged in seawater and must remainoperational for future use. The solutionproposed by Trelleborg Sealing Solutions wasfor bushings in Orkot®, a proprietary advancedcomposite bearing material, which hasexceptional resistance to seawater.
Installation of each bushing into their housingwas a large concern. A particularly difficultaspect to this project was that the bushingshad to be installed into egg-shaped metaldrums supplied through a constructioncompany contracted by SBM Atlantia. “It wasa logistical nightmare for Atlantia,” says EricBucci, Oil & Gas Segment Manager forTrelleborg Sealing Solutions Americas. “Wesolved this for them by having the drumsshipped to the Trelleborg Sealing Solutionsfacility in Eugene, Oregon and completing theinsertions ourselves.”
Orkot® bushings have excellent resistance toseawater and could help prevent corrosion
Bushings are shrunk prior to installation toensure optimum fit
On delivery to Eugene, due to the irregularshape and surface finish of the drums, theywere re-machined to specification. But thatwas only half the battle. In order for theOrkot® bushings to fit properly, they had to beshrunken for insertion inside the drums.Trel leborg Sealing Solutions Eugeneconstructed a large chamber to freeze thebushings and submerged them in liquidnitrogen to shrink them to a smaller diameter. The Orkot® bushings were inserted
successfully, and the assemblies were shippedback to Atlantia in a short time frame. “Thesuperior service and quality delivered for theNeptune project has certainly positionedTrelleborg for extensive opportunities onfuture SBM Atlantia projects,” says ClayThompson, Instal lation Manager, SBMAtlantia.
Oil & Gas
Products made from Orkot® composite materials have exceptionalwear resistance and virtually no swell in water, providingdimensional stability. They offer tolerance to edge loading andmisalignment even with the heaviest loads and are particularly suitedto freeze fitting without the danger of shattering. Orkot® TLMMarine is the standard grade of material incorporating woven fabricreinforcement and solid lubricants within a thermosetting resinmatrix. The material can be used in conjunction with water andgrease lubrication and can be run dry for limited periods.
21
Orkot® TLMM
22
Chemical & Processing
Keeping up with the grindYou can’t compare the professional coffee machines manufactured byWMF to those you’ll find in the average home. Their machines areengineered to brew up to 300 cups of coffee per hour. That means eachcomponent must be of the highest quality and durability. The samerobustness is required from the seals that Trelleborg Sealing Solutionssupplies for these appliances.
In WMF coffee machines, the standardnon-abrasive plastic internal parts of
domestic models are replaced withmetal. Not only must seals be able to
withstand movement against theseharder counter surfaces, they must also
stand up to heat, acid, pressure, cleaningmedia and abrasive coffee grounds.
23
The demands on seals in the WMF coffee machines are high.They need to have:
• Excellent friction characteristicsFor movement against the equipment’s metal counter surfaces
• Exceptional wear resistanceTo withstand abrasion from ground coffee beans
• Compatibility with process mediaIncluding acids in coffee, fats in milk and the aggressivechemicals in cleaning regimes
• Capability to operate under pressureBoiling water is forced through the coffee grounds at up to 16 bar / 232psi
• Outstanding lifeTo stand up to brewing of at least 100,000 cups of coffee
To meet all these requirements a seal was specified in Turcon® MF, our proprietary PTFE based material specificallydesigned for food, beverage and pharmaceutical processing.A modified Stepseal® design was selected, engineered toendure this intensely dynamic environment.
A modified Stepseal® manufactured in Turcon® MF, supplied byTrelleborg Sealing Solutions, is used for sealing this piston. It isproving to offer extended life in this harsh processing environment.
Turcon® MF designed for processing needs
Based on ultra-clean technology, these compounds aremanufactured from high-purity PTFE grades andadditives. Their smooth finish, with high gloss and lowporosity, avoids the risk of contamination buildup andreduces particle shedding. Each batch of MF material ismanufactured using high-purity material only and can beissued with a certificate of conformity.
Our range of Turcon® based PTFE materials offers:
Temperature resistance from –253°C /-423°F to +260°C /500°F
Almost universal chemical compatibility
Outstanding low long-term compression set characteristics
High wear resistance
Minimal creep and permeation
Surface finish minimizes contamination risk
Materials perform well in a broad range of chemicalmedia including organic and inorganic oxides, acids, alkalis,amines, esters and steam
Materials compliant to FDA 21 CFR177.1550, 3-A, USP Class VI and sanitary standards
WMF... coffee wakes up the world
From cappuccino to latte macchiato, WMF hastechnologically advanced machines to make them all.The world leader in manufacturing of professionalcoffee makers, their equipment is heavy duty anddesigned to meet caterers’ needs.
Making the perfect cup of coffee… 300 times per hour
In the WMF bistro range of machines, coffee is freshlyground. A piston presses these grounds into a cylinder,at the bottom of which is a metal sieve. To make thecoffee, boiling water is jetted through the cylinder witha 70 mm / 2.7 in stroke of the piston at a pressure of16 bar / 232psi. The sieve then swings down and thepiston pushes the used coffee grounds out of the cylinderinto a collecting tray. This process is repeated for everysingle cup of coffee, up to 300 times per hour.
24
Smallest
will soon be
biggestWindows that clean themselves,material that is light as a feather andstronger than steel, an elevator intospace… In the world of nanotechnology,fantasy and reality converge.
25
SemiconMartin Magnusson is LiaisonScientist at the NanometerConsortium, University of Lundin Sweden. He serves as a linkbetween research and thebusiness sector.
Through the relatively newnanotechnology, the future is alreadyhere. The possibility at atom level ofmixing physics, chemistry and biologyto produce new materials withcustomized properties opens the wayfor highly innovative products andapplications in a number of areas.
Nanoscience has become perhaps themost prominent area in research and,in the long term, nanotechnologycould become the hub of a newindustrial revolution. But what isnanotechnology?
In the new, advanced nanolaboratoryat the Lund Institute of Technology,Martin Magnusson serves as a linkbetween research and the businesssector at the interdiscipl inaryNanometer Consortium.
“Nanotechnology is used tomanufacture articles on the scale of1–100 nanometers and to make use ofthese structures. Nanoscience is aboutthe aspects that are specific to suchsmall systems and what can be donewith the help of nanotechnology,” hesays. the central feature of nano-science is that a material’s propertiesare changed at nano level.
For physicists, this phenomenonmeans that a new type of physicsoccurs; chemists can achieve moreaccurate measurements and createnew structures; in biomedicine, it ispossible to measure individualmolecules; and materials scientists cancreate new materials.
“For example, gold has certainmaterial properties. But if you take asingle gold atom, it has none of these,
except perhaps the density. At nanolevel, it is also possible to mixmaterials in a way that would beimpossible if they were bigger. Thisfacilitates the creation of new,exciting composite materials.”
There are already a number ofproducts based on nanotechnology:car t ires with superior wearproperties, stainless textiles andultra-thin surgical needles. The self-cleaning windows are also reality,but we will probably need to waitfor NASA’s nanovision of using ultra-thin, extremely strong wires to takean elevator straight out into space –although it is already possible intheory.
“The area is usually divided accord-ing to application: electronics,medicine and material. We are
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becoming increasingly effective atcreating material with morecontrolled properties. They canbecome stronger, lighter, conductheat better or less well… Whatever itis we want them to do,” says MartinMagnusson.
Using nanotechnology, a manufacturerhas succeeded in producing asynthetic rubber that has improvedheat resistance, elasticity andflexibility. With nano-size particles, itis even possible to reinforce siliconrubber so that it becomes bothtransparent and robust.
“One of the most exciting features iscombination solutions that involvemixing active elements and sensorsfrom biology and physics in materialsscience. There has been success increating air-cleaning and self-washingconcrete and work is being conductedon self-repairing plastics. By nano-structuring surfaces, attempts are alsobeing made to make them self-sealingso that no packing is needed,” saysMartin Magnusson.
Slowly but surely, researchers aredeveloping nanotechnology, but themass-production of nanostructureswith sufficient precision remains thestuff of science fiction. The integralcomplexity of the technology meansthat costs become too high.
“It will be some time before it takes18 months from the research lab toindustry earning money on a solution.But there is plenty that can be doneand companies have to tel l usresearchers what they need. There isnothing we want more than tocooperate with industry,” says MartinMagnusson.
Quantum leap
A key focus for the semiconductorindustry is the quest to produce thequantum computer. Following thelaws of quantum physics, thequantum computer would haveenormous processing powerthrough the ability to be in multiplestates and to perform tasks using allpossible permutations simultaneously.Nanotechnology is a key element tomaking this dream a reality.
The init ial implementation ofnanotechnology will help make chipsthat are smaller, faster and morepowerful. It is estimated that by2015 the spend on nanotechnology-based applications will be major inthe semiconductor industry withinvestment in developmentsincreasing year on year.
SemiconNanotechnology in semiconductor equipment:The 90 nm node is already in production and the industry is workingtoward 63 nm.
In lasers quantum wells are to be substituted with quantum dotsproduced from nanometer sized crystalline particles.
Nanowire technology will allow the pushing of electrons into eversmaller spaces.
Films are in development made of carbon nanotubes (CNTs) andnanoparticles to help make chips smaller and faster.
Spintronic theory has led to nanoscale devices that increase readhead sensitivity of a hard disk drive, significantly expanding storagecapacity.
Self assembly on hard disks is resulting in higher percentage particlealignment, giving greater magnetism and more storage in the samespace.
Nanoimprint lithography is moving from the 32 nm mode to 1 nmdimensions.
A millionth of amillimeter
Within nanotechnology, researcherswork with individual atoms, making itpossible to move atoms, create newmaterials and change the properties ofexisting materials. An atom is about 0. 2nanometers in diameter and you getone nanometer if you divide onemill imeter a mil l ion times. Onenanometer has the same size in relationtennis ball as the tennis ball has to theglobe.
The name “nanotechnology” was firstused in the 1970s. A breakthrough wasachieved in 1981 with the invention ofthe scanning tunnel microscope, whichmeant that it was possible for the firsttime to see the surface of atoms and toactually touch individual atoms.
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Sealing - the future - with nanotechnology“As our customers’ equipment moves into the nano-dimension sowill our sealing products,” says Elke Voehringer-Klein, EuropeanSemiconductor Segment Manager. “Certainly sealing in thesemicrostructures will present new and possibly yet unknownchallenges. We expect our sealing materials will have to embracenanotechnology too.
“Research and development is increasingly being devoted to thedevelopment of the ultimate that can be accomplished fromnanotechnology, the intelligent seal. In the meantime we areseeing, in response to demands from the semiconductor market,focus on material fillers based on nanotechnology principles.These organic compounds offer increased resistance tochlorinated and fluorinated gases, high temperatures and harshprocess chemicals while lowering particulation.”
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Variationson a theme
Turcon®
Variseal® is apopular seal for use in
processing systems.Always looking to maximize
the applications for thisproduct, Trelleborg SealingSolutions has engineerednew variations to meet
specific marketdemands.
Product Capabilities
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At the leading edge of sealing technology,Trelleborg Sealing Solutions introduced Turcon®
Variseal®, the original PTFE based spring-energized seal, in the 1970s. Continuallyenhancing the product, advances have focused onmaterials, profiles and spring designs. Eachvariation is engineered to meet specif icrequirements within the marketplace and here wefeature some of the latest developments.
Why Turcon® Variseal®?Turcon® is a PTFE based material. This has major advantages inprocessing applications due to the fact that it is resistant tovirtually all media. That includes the aggressive chemicals inCIP (Cleaning In Place) and SIP (Sterilization In Place) regimesalong with gases and plasma in semiconductor equipment. Italso withstands extreme temperatures, such as those seen in oiland gas production. With exceptional friction properties, it isideal for dynamic applications, preventing sticking to countersurfaces, even after extensive periods of rest.
Turcon® Variseal®:development andmanufacturing on two continentsSignificant ongoing research and development istaking place with the Turcon® Variseal® product onboth sides of the Atlantic. Within the UK,manufacturing of Turcon® Variseal® takes place atTrelleborg Sealing Solutions Bridgwater, while inthe US it is produced at Trelleborg SealingSolutions Broomfield. Product development iscoordinated through extensive test facilities onboth continents, the facilities working together tomaximize the uses for Variseal®.
Product Capabilities
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Meeting
market needs
Turcon® Variseal®
Ultra-CleanTM
In this design, the spring required to activatethe seal is fully enclosed in a Turcon® PTFEbased case. This ensures that no bacteria canbe caught in the dead space around thespring, important in food, beverage andpharmaceutical systems. It also prevents metalextractables entering semiconductorfabrication processes.
Features and Benefits:
• Operates in extreme temperatures from -253°C / -423°F to +260°C / +500°F
• Withstands high pressures in excess of100bar /1450psi
• Excellent wear and friction characteristics
• Compatible with virtually all chemicals
• Unrivalled cleanability in food & beverageand pharmaceutical applications
• Materials available compliant to FDA 21 CFR 177.1550, 3-A, USP Class VI,Cytotoxicity <USP 87>, NSF and the EU Machinery Directive
• Suitable for piston, rod, face, rotary,reciprocating and static situations
• Easy retrofit into standard AS-568 O-Ringand Variseal® grooves
Turcon® Variseal®
NWA flange seal where its Turcon® PTFE basedcase encompasses the energizing spring insuch a way that there can be no possiblecontact between the spring or spring cavityand system media. Ideal for semiconductorapplications, it can operate in a vacuum and isproven in fluorine gas.
Features:
• Operates in extreme temperatures from -253°C / -423°F to +260°C / +500°F
• Vacuum capability in air to 10-9mbar/ l/s
• Excellent wear and friction characteristics
• Compatible with virtually all media andgases
• Materials available compliant to FDA 21 CFR 177.1550 3-A, USP Class VI,Cytotoxicity <USP 87>, NSF and the EU Machinery Directive
• Available in custom sizes or standarddimensions with easy retrofit of current NWelastomer seals
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Turcon® Variseal®
SASpring-energized seals are sometimes proneto installation damage when they are fittedinto small diameter closed grooves. The newTurcon® Variseal® SA is energized with aSlantcoil® spring which can accommodatemore deformation than other springs.Additionally, the Turcon® Variseal® SA featuresa unique profile geometry which supportsthe sealing lip while the seal is beingdeformed. This allows it to be installed inclosed grooves, even when these are of asmall diameter.
Features and Benefits:
• Excellent sealing capabilities
• Operates in extreme temperatures from -70 °C / -94 °F to +230°C / +446°F
• Withstands high pressures up to80 MPa / 11600 psi
• Excellent wear and friction characteristics
• Compatible with virtually all chemicals
• Suitable for piston, rod, face, reciprocatingand static situations
• Easy retrofit into standard AS-4716 andVariseal® grooves
• Complies to the EU Machinery Directive
A business area of the Trelleborg Group
Employees: 5700
Research and Development Centers in Europe and America
30 manufacturing plants worldwide
40 Marketing Companies globally
Quality Certifications: ISO 9001:2000 and ISO/TS 16949:2002
In-house polytetrafluoroethylene, polyurethanedevelopment and elastomer development
More than 2000 material formulations
Worldwide distribution network
Contact your local Trelleborg Sealing Solutions Marketing Company at:
www.tss.trelleborg.com
Trelleborg Sealing Solutionsat a glance
Contact the editorial team:[email protected]
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