Gear Pumps - Extrusion Auxiliary

1 gear Pumpszahnrad_neu_gb 11:46 Uhr Seite 12 Kreyenborg gear Pumps - An Addition to our RangeThe best guarantee for continuous and economicmachine performance is a closed loop systemwith well-matched units. The Kreyenborg system,right through to pelletizing, storage and packing,is almost unique world-wide, offering reliableoperation, not least due to the fact that Kreyen-borg supplies the complete system, includingadapters and assembly of all the individual com-ponents. The new generation of Kreyenborg gear pumpscomplement our product range. In our functionas a supplier of complete systems, we not onlyoffer state-of-the art technology for individualcomponents or complete lines, but on requestwe can execute trials with your material underreal production like all the other products of the Kreyenborggroup, our gear Pumps are tested meticulouslyon two industrial scale Extrusion lines.

2 You cansee how your specific plastics material behaves -a special service rendered by complete industrial size lines are used for the furtherdevelopment of the 11:46 Uhr Seite 23 Kreyenborg gear Pumps : Advantages of a Complete SystemKreyenborg gear Pumps are designed in such away that they can either be manufactured as indi-vidual units or integrated into existing lines. Ofcourse they can also be supplied in combinationwith a screen changer. Each individual unit isdesigned according to the international goes without saying that the pump has optimi-sed flow paths and a compact design. Thermallysensitive polymers, PC, PMMA or PA, can bepumped in the same way as common plastics,such as PE, PP, PS etc. Some of the special features are as of standard heating cartridges withinthe pump housing guarantees a high degree ofsafety, there are no live electrical cables lyingdirect on the pump. Kreyenborg Pumps are IP54protection rated.

3 Pressure and melt temperaturesensors are standard in the pump housing foreasy handling and maintenance .Three Systems from one SourceThe Kreyenborg range of gear Pumps consists ofthree product lines which can be fitted into exi-sting or new complete lines, depending on theindividual three systems are designed for economicoperation and constant process security. Whet-her your production process requires the conven-tional assembly of gear pump, adapters andscreen changer, or directly-coupled gear pumpand screen changer, or gear pump integral withthe screen changer, Kreyenborg have the the equipment is supplied complete withKreyenborg screen changers, upstream of thegear pump, complete protection is afforded togear pump and downstream equipment, guaran-teeing process security, consistency and high-quality bodies are filtered out of the melt by a Kreyen-borg screen changer ensuring clean in detail:Kreyenborg gear pump GPE70/70-01 Kreyenborg gear pumpHeart of the new complete lineKreyenborg screen changer with control systemzahnrad_neu_gb 11.

4 46 Uhr Seite 34 Composite design Kreyenborg gear Pump and Screen ChangerAdvanced polymers particularly require a processwhich is mainly characterised by constant pres-sure and Kreyenborg research and development divi-sion has tackled this problem in developing agear pump with integral screen changer that livesup to these extreme requirements. During deve-lopment we particularly attached importance tocompact design to keep melt channels as shortas Kreyenborg GearPump and Screen ChangerThe directly-coupled model of gear pump andscreen changer is the precursor of the compactcomposite design. Here too the melt channelswere reduced considerably to the standarddimension of this compact composite design Kreyenborg gear pumpwith screen changer in one unit lives up to the high tech-nical standards, especially for the processing of advan-ced polymers, which cannot stand varying pressure matched components reduce variations in tempera-ture and pressure to a minimum.

5 Our know-how: com-plete solutions from flange to of composite designand direct coupling in brief: 100 % continuity compact design minimal installation length short melt channels rheologically-optimised melt channels,suitable for the processing of thermally sensitive products favourable priceTypical applications: Extrusion of high-quality products, such as foil and sheet tube and profiles foamed products film cable coatingszahnrad_neu_gb 11:46 Uhr Seite 45 Standard Version of the Kreyenborg gear PumpKreyenborg is able to install gear Pumps - inclu-ding or excluding screen changer - in existinglines. Our customers benefit from Kreyenborg slong-standing experience in the developmentand production of specific adapter flanges, attai-ning optimal results in the individual process Kreyenborg gear Pump withControl SystemBy using gear Pumps in Extrusion a processseparation can be achieved. The output pressureof the extruder can be adjusted to generate opti-mum melt conditions and the gear pump produ-ces the necessary pressure at the protection against foreign bodies, the bestplace to install the gear pump is between screenchanger and die.

6 A PLC control system performsthe control and the supervision of the line. Thepump usually runs with a constant speed and theextruder screw speed is varied. The outlet pres-sure at the pump is adjusted to an optimal opera-ting point of the extruder. Data acquisition for production analysis can besupplied as part of the control system providingongoing supervision, historic trends can berecorded and recipes programmed and construction and test run in one of the two Kreyen-borg industrial size lab LLDPE, LDPE, HDPE, PP, EPDMP olyvinyl chlorides PVC-P (soft PVC)Styrene PS, SAN, ABSA crylic PET, PBT, PA 6, PA , PA 11, PA 12 Polymer blendsThermoplastic TPE-S, TPE-O, TPE-E, TPE-APolyurethanesHot Melt basing on EVA, APAO, PANatural chewing gumSynthetic epoxy resinStreamlined, compact design permits a wide range 11:47 Uhr Seite 56 Technical SpecificationTechnical design of the pump Flow-optimised inlet and outlet sections guarantee a gentle treatment of the material.

7 Pump type suitable for the use of common plastics and thermally sensitive polymers Compact design of the pump Adapter flanges enable installation in existing lines. Thanks to the compact design of the pump, the existing connection lengths can be kept (individual installation dimensions). Standard heating cartridges Electric supply cables are integrated into thepump housing: no bare and live cables Wiring in a standard housing made of aluminium IP54 Borings for pressure and temperature sensors are integrated into the pump housing. Temperature sensors with adapters in the housingMaterials:Housing:tempered steelGears:tool steelSlide bearing:tool steelHeating:Electric cartridge heaters (IP54); hydraulically heatedShaft seal:visco seal on both sidesProcess data:Temperature:max. 450 CViscosity:50 to 30,000 PasPump inlet:max. 120 barPump outlet:max. 350 barDifferential pressure: max. 250 barGear pump GPE ( gear PUMP Extrusion ) gear pumpCapacityOperation limitsTypical throughputs**plastics in generalHDPE pressure pipePS deep-drawing (cm3/U)(kg/h)(kg/h)film (kg/h)GPE22/22-014,723-362326 GPE28/28-0110,245-724555 GPE36/36-0125,6105-168105130 GPE45/45-0146,3180-270195300 GPE56/56-0192,6300-490250-300300-545 GPE70/70-01176500-850350-500500-950 GPE90/90-01371900-1500500-8001000-1500 GPE110/110-017161450-2540700-9001500-230 0 GPE140/140-0114822600-8000 GPE180/180-0132002000-15000 ** These values were ascertained with a filter on the suction side of the pump.

8 Mesh size 500 11:47 Uhr Seite 6 Customer:Contact:Address:Phone:Fax:e-mai l:Material data:Type:(trade name, short name)Kind:pelletsothersProperties:corros ivefilm-formativeabrasiveparticle size (in ym)Fillers:% (percent by volume) Viscosity:(Pas)(cP)MFISp. gravity:(g/cm3)(kg/m3)( )Sp. heat capacity:(KJ/kg K)Process Data:Capacity:(kg/h)(1/min)( ) Inlet pressure:(bar)(psi)( )Outlet pressure:(bar)(psi)( )Ambient temp.:( C)( F)( )Operating temp.:( C)( F)( )Line configuration:Extruder data:manufacturertypesingle screwtwin screwscrew diameter (mm) Extrusion height (mm)Pump:Material:Housing:standardothers Gears:standardothersSlide bearing:standardothersHeating:electr., voltage of heating elements:230 V400 Vothers seal:visco seal (standard)others Drive: Current supply:Feed voltage (Volt):Power frequency Hz:Control voltage (Volt):Protection system:Ex protection system:IP:Fax: +49-251-21405-21 Quotation Questionnaire for gear Pumpsreclaimed materialzahnrad_neu_gb 11:47 Uhr Seite 7 Kreyenborg GmbHCoerm hle 1 5D-48159 M nsterPhone:+49 251 21405-0 Fax:+49 251 Raco DriveLawrenceville, GA 30045, 11:46 Uhr Seite 8