Maag Gear Pumps for Polymers

Maag gear pumps forthe polymer industry

2Serving the global polymer industry

Our worldwide, technical sales networkspans Europe, the Americas and Asia.Customers polymer processing ques-tions can be quickly answered by quali-fied engineers familiar with the local cul-tures of over 50 countries served by theMaag Pump Systems Textron Group.

Technical consulting and servicesupport

Members of Maag Pump Systems Tex-trons global organization can respondto complex pumping problems with ef-fective solutions. Highly-trained, skilledservice personnel are available to assistwith installation, startup, and mainte-nance of Maag pumps on short noticeanywhere in the world. Genuine parts in-ventories are strategically located to as-sure quick availability, if needed.

Polymer production experience

Maag pioneered development of gearpumps for handling polymers. Decadesof commitment for developing betterpumping solutions through research, in-cluding pilot plant and field applicationevaluation, have helped to maintainMaag Pump Systems Textron`s positionas the worlds leading manufacturer. Ourbest references are the countless pumpsystems successfully operating in poly-mer production plants today.

From monomer to polymer

In many areas of processing and poly-mer chemistry, gear pumps are takingover the important tasks of deliveringand metering product. By virtue of theirefficient pressure building capability,Maag pumps enhance the economics ofthe process and the quality of the prod-uct.

Most polymers are produced by poly-merization in continuous or batch reac-tors. The polymers are usually synthe-sized in the form of high-viscosity meltsthat need to be treated gently in order toobtain high product quality.

Many reactors employ a gear pump fordischarging the polymer and conveyingit to further reaction stages, mixers orpelletizers.

Gear pumps are high pressure positivedisplacement pumps with exceptionallylong service life.

Outstanding features include:

Compact, easy-to-maintain design

Stable, predictable flowpatterneven at high pressure

Minimum polymer residence timeand temperature rise

Low shear characteristics

High volumetric efficiency

Low energy consumption

To assure maximum pump performanceand quality customer service, each ofthe following departments work closelytogether:

Research and Development

Design

Metallurgy

Test Center

Production

Quality assurance

Application engineering

Marketing

Distribution

Customer service

Maintenance

Maag Pump Systems TextronYour partner for gear pumps in the polymer industry

3 Gentle and steady handling of polymer melts made possible with special helical gear design Minimized NPSHR due to the optimized inlet geometry Capacities available from standard sizes to record setting plant sizes Fully jacketed pump with reduced weight

vacorex MHigh pressure extraction pump used under polymer reactor anddevolitilization vessels

Viscosity: up to 20,000 Pas (200,000 Poise) Temperature: up to 350C (662F) Suction side:

Product enters pump from vacuum or underintake pressures up to 10 bar (145 psi)

Discharge side:Pressure up to 275 bar (3,990 psi)

Design pressure:320 bar (4,640 psi)

Housing: corrosion-resistant steel Gear shafts: nitrided steel / tool steel Bearings: tool steel / aluminum bronze / special materials Shaft seal:

- single mechanical seal - double mechanical seal- vislip

- vispac

- viscoseal Pump heating: HT medium, max 350C (662F),

max pressure 25 bar (360 psi)

Pump size cc/rev lbs/rev*

45 46 0.10

70 176 0.39

90 371 0.82

110 716 1.58

140 1,482 3.27

180 3,200 7.05

224 6,108 13.47

280 11,800 26.01

360 and larger on request

*Specific gravity of 1.01.0

10.0

100.0

1000.0

10000.0

45 56 70 90 110 140 180 224 280 360 450 560

2000-4000 Pas

700-1500 Pas

150- 400 Pas

capacity range vacorex - M

capa

city

[m3 /d

ay]

(approx. has to be confirmed)

pump size

Typical Application Limits Technical Data

Specific Volume

4 Gentle and steady handling of polymer melts made possible with special helical gear design Open inlet geometry with low pressure drop Capacities available for medium to large production plants Fully jacketed housing with optional jacketed covers

viscorexMedium pressure extraction pump used under polymer reactor anddevolitilzation vessels

Viscosity:up to 20,000 Pas (200,000 Poise)

Temperature:up to 350C (662F)

Suction side: Product enters pump from vacuum or underintake pressures up to 10 bar (145 psi)

Discharge side: Pressure up to 70 bar (1,015 psi)

Housing: cast steel / corrosion-resistant steel Gear shafts: nitrided steel / tool steel Bearings: tool steel / aluminum bronze / special materials Shaft seal:

- single mechanical seal- double mechanical seal- vislip

- vispac

- viscoseal Pump heating: HT medium, max 350C (662F)


Pump size cm3/rev lbs./rev*

10" 3,170 7.0

14" 7,900 17.4

16 on request

20" 21,400 47.2

28" on request

44" 97,630 215.2*Specific gravity of 1.0

(approx., has to be confirmed)

10.0

100.0

1000.0

10000.0

10" 14" 20" 28" 44"

pump size

2000-4000 Pas

700-1500 Pas150- 400 Pas

10-70 Pas

capacity range viscorex

capa

city

[m3 /d

ay]


Specific Volume

5 Utilized as a transfer pump installed between reactors Operates as a booster pump installed in front of static mixers, heat exchangers, filter systems, or long transfer pipes In-line installation or bolted directly under the vessel Fully jacketed pump with reduced weight

thermorex - MHigh pressure transfer or booster gear pump for low to high viscositypolymer melts

Viscosity: up to 20,000 Pas (200,000 Poise) Temperature: up to 350C (662F) Suction side:

Product enters pump from vacuum or underintake pressures up to 100 bar (1,450 psi)


Max differential pressure: up to 275 bar(3,990 psi)



- vispac

- viscoseal Pump heating: HT medium, max 350C (662F),


Pump size cc/rev lbs/rev*

45 46 0.10

56 92 0.20

70 176 0.39

90 371 0.82

110 716 1.58

140 1,482 3.27

180 3,200 7.05

224 6,108 13.47

280 11,800 26.01*Specific gravity of 1.0

1.0

10.0

100.0

1000.0

45 56 70 90 110 140 180 224 280

capacity range thermorex - M

pump size

capa

city

[m3 /d

ay]



Specific Volume

6 Gear pump specifically designed for prepolymers and other low viscous products Efficient transfer / feed pump for in-line installation or bolted directly to the reactor Available for oligomers in special design configurations

thermorex - RTA newly designed gear pump to optimize prepolymer processes

Viscosity:up to 60 Pas (600 Poise)*


Suction side: Product enters pump from vacuum or underintake pressures up to 10 bar (145 psi)


Pump size cc/rev lbs/rev**

56 92 0.20

70 176 0.39

90 371 0.82

110 716 1.58

140 1,482 3.27

180 3,200 7.05*Higher viscosities on request**Specific gravity of 1.0

10

100

1000

56 70 90 110 140 180

capacity range thermorex - RT(approx. has to be confirmed)

pump size

capa

city

[m3 /d

ay]


Specific Volume



- vispac

- magnetic coupling Pump heating: HT medium, max 350C (662F),


7 Includes a large variety of different materials for shafts, bearings, and seals allowing for exceptionally high applicationflexibility

Corrosion resistant materials offer long service life cinox is available without an integrated heating jacket therminox is available with an integrated heating jacket

cinox / therminoxThe reliable precision gear pumps for chemical applications in polymerprocesses. For pumping additives, catalysts, and monomers.

Viscosity:1 to 10,000 mPas (100 Poise)


Suction side:Vacuum up to 15 bar (217 psi)

Discharge side:up to 25 bar (360 psi)

Pump heating:HT medium or steam, max 320C (608F)

Heating system:max. pressure: 25 bar (362 psi)

Pump size cm3/rev lbs./rev*

22 4.7 0.01428 10.2 0.022536 25.6 0.056445 46.3 0.1056 92.6 0.2070 176 0.3990 371 0.82110 716 1.58140 1,342 2.96180 3,200 7.05*Specific gravity of 1.0


0.10

1.00

10.00

100.00

22 28 36 45 56 70 90 110 140 180

pump size

capacity range cinox / therminox

capa

city

[m3 /d

ay]


Specific Volume

Housing: corrosion-resistant steel Sizes 22-45: DIN 1.4435 / AISI 316LSizes 56-180: DIN 1.4408 / AISI CF-8M

Gear shafts: corrosion resistant steel DIN 1.4112 / AISI 440B

Bearings: carbon / tool steel / nickel silver / ceramics /special materials and coatings

Shaft seals:- single mechanical seal- double mechanical seal- magnetic couplingtherminox

Maag mechanical seal

Double mechanical seal developed Vacuum up to 15 bar 0.001 to 3,200 Pas 320 C (608 F)for use in polymer applications (215 psi)

Single mechanical sealInternally mounted with Pressure up to 10 bar 0.001 to 100 Pas 300 C (572 F)heated stationary seal seat (145 psi)

Mechanical seals from various suppliers

Developed in collaboration with Pressure up to 15 bar 0.001 to 3,200 Pas 320 C (608 F)well-known suppliers: full cartridge (215 psi)mechanical seals

vispac

Patented combination of the proven Vacuum to 2 bar 50 to 20,000 Pas 350 C (662 F)viscoseal with spring loaded gland (29 psi)packing and barrier sealing liquid system

vislip

Patented combination of the proven Vacuum to 2 bar 50 to 20,000 Pas 275 C (525 F)viscoseal with two lip seals and (29 psi)a barrier sealing liquid system

viscoseal

Maintenance free, patented, counter- Pressure from atmosphere 100 up to 20,000 Pas 350 C (662 F)grooved, gap shaft seal up to 40 bar (580 psi)

magnetic coupling

No leakage, maintenance free Vacuum to 24 bar (350 psi) 0.001 to 30 Pas 300 C (572 F)unlimited service life

Options for Maag Gear PumpsShaft seals

Descriptions Suction pressure viscosity Max. temperatures

8

SSK sealing system formechanical seals

Maag builds and supplies seal flush piping systems forvarious mechanical seals arrangements. The sealingsystems are built to suit specific applications.

Design features: 10 liters effective capacity stainless steel bottom plate removable for cleaning service pressure up to 20 bar (290 psi) temperatures up to 300C (570F)

9

Materials:

Polyethylene terephthalate (PET)

Polybutylene terephthalate(PBT)

Polyamide (Nylon)

Polycarbonate (PC)

Polyethylene (LDPE, HDPE,...)

Polypropylene (PP)

Ethylene proylene dienemonomer (EDPM)

Copolymers

Cellulose acetate (CA)

Polyacryl nitrile (PAN)

Silicone

Oil additives

Plasticizers

SBR Latex

Phenol resins

Polymethyl methacrylate(PMMA)

Epoxy resins

Polystyrene (GPPS, HIPS)

Acrylonitrile butadiene styrene(SAN)

Styrene Acrylonitrile-Copolymere(ABS)

Polysulphone

Elastomers

Oligomer

Speciality polymers

etc.

Maags gear pumpapplication range

Continuous reaction andde-gassing

Batch processes

Degassing stage withdirect granulation

Application possibilities for various Maag gear pumps

Booster pumps

VX vacorex

VR viscorex

TR thermorex

TR-RT thermorex-RT

TX therminox

CX cinox

TX

VR VX VX

VX TR

CX

TR

TR

TR-RT TR-RT VX

10

Maags proven processing solutionsproduct range

11

Screen Changers & Systems

Wil-Man brand continuous screen changers provide optimum filtration of most anymolten polymer and allow exchanging of the screens while maintaining constant pro-duction, while leaving the process virtually unaffected. You can choose from a wide-variety of models from continuous single and dual piston, with optional backflush, tobelt type systems for constant pressure. Maag also offers discontinuous piston andslide plate screen changers, with one or two screens for processes that can toleratean interruption during screen change.

Filtration Systems & Elements

LCI and EFC brands offer large area simplex, duplex, and backflush type of filter sys-tems for polymers and monomers using our patented diverter valve technology withbumpless transfer capability.

micronex filter elements employ only the most select filter media, utilizing the latesttechnology in hard and soft sinter medias which promote longer onstream life withoutmedia migration or compression during normal operation.

Heat Exchangers & Mixers

blendrex heat exchangers utilize mixing elements to enhance heat transfer to poly-mers and other highly viscous materials. Furthermore, the blendrex mixing elementsserve to eliminate hot spots, providing a very uniform temperature profile across thetube section.

blendrex motionless mixers can provide thorough mixing of flowing gases, high andlow viscosity liquids, powders, and pellets.

Industrial Gear Pumps & Systems

Maag offers the greatest range of fluid handling pumps for difficult applications; fromwater-like fluids to melted polymers, with viscosities from 0.3 to 4,000,000 mPas(4,000,000 cP), with temperatures from -30 to 320C (-22 to 600F), and with pres-sures up to 350 bar (5,000 psi).

Maag also offers a sealless, magnetic-drive option that isolates toxic, flammable, andodorless liquids from the environment.

Compounding Gear Pumps & Systems

Maag provides compounding systems for the polyolefins and thermoplastics market,such as LDPE, LLDPE, HDPE, and PP. Maag has been the leading manufacturer ofgear pump systems for conveying highly viscous polymer melts for over 30 years. Inthe compounding field, the polyrex pump is the result of endless production-orientedresearch and development with OEMs and end users. Worldwide references in us-age confirm the polyrex as standard in resin manufacturing.

Extrusion Gear Pumps & Systems

Maags extrex extrusion gear pump is successful in meeting process conditions, suchas viscosities to 30,000 Pas (30,000,000 cP), temperatures to 450C (842F), andpressures to 700 bar (10,150 psi). The rubbex gear pump can process elastomers incombination with a feeder unit for several types of rubber applications.

Maag offers several control systems for pump-assisted extrusion, including basic dis-crete instrumentation, or sophisticated PLC based versions capable of total line control.You can choose from an array of options, such as multiple heat zones, one button start-up, and AC or DC drive systems.

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SwitzerlandMaag Pump SystemsTextron AGAspstrasse 12CH-8154 Oberglatt

+41 44 278 8200 Ph.

+41 44 278 8201 Fax

AmericasMaag Pump SystemsTextron Inc.2915 Whitehall Park DriveCharlotte, NC 28273+1 704 716 9000 Phone+1 704 716 9001 Fax

AsiaMaag Pump SystemsTextron Pte. Ltd.25 InternationalBusiness Park# 03-22/23 German CentreSingapore 609916+65 562 87 20 Phone+65 562 87 29 Fax

England / IrelandMaag Pump SystemsTextron UKGreen RoadPenistoneGB-Sheffield S36 6BJ+44 1226 222 218 Phone+44 1226 222 273 Fax

FranceMaag Pump SystemsTextron SARL111 Rue du 1er Mars 1943F-69100 Villeurbanne+33 4 72 68 67 30 Phone+33 4 72 68 67 31 Fax

GermanyMaag Pump SystemsTextron GmbHLudwig-Erhard-Strasse 10D-34131 Kassel+49 (561) 31001-0 Phone +49 (561) 31001-20 Fax

ItalyMaag Pump SystemsTextron s.r.l.Viale Romagna 71-20089 Rozzano (MI)+39 02 575 93 21 Phone+39 02 575 93 232 Fax

www.maag.com 2001 Maag Pump Systems Textron

Polymer-A4-english-11-01

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Maag Gear Pumps for Polymers