EXTRU III - Extrusion Gear Pump Brochure

CHEMEXTRUPOLYBOOSTERPUROEXTRU IIIExtrusion gear pumpEXTRU IIICompact and compatibleEXTRU III pumps are of compact design and impress through their extraordinary compatibility. Their light construction and compact design allow simple installation, thus saving time and valuable floor space. The EXTRU III can be operated with viscosities of up to 30.000 Pas., temperatures of 350°C, suction pressures of up to 120 bar and diffe-rential pressures of up to 250 bar.The standard EXTRU III pump is delivered with aluminium-bronze Visco-seals. This dynamic shaft seal is designed especially for high viscosities and suction pressures and can be provided with cooling if required. Because of the efficient build-up of pressure in comparison to extruders, the product can be conveyed in a very gentle manner with the WITTE EXTRU III gear pump, as comparatively little energy or heat is transferred to the polymer. They allow an extremely precise and almost pulsation-free conveyance of polymer, so that fluctuations in conveyance by the extruder will be compensated for. The friction bearings are provided with special lubrication pockets and channels to ensure long-term, reliable operation. Technical FeaturesHousing: Heat resistant carbon steel optional: coatingCover: Carbon steelGears: Nitrited tool steel, optional: coating, herringbone gearingFriction Bearings: Tool steel, optional: coatingShaft Seal: Viscoseal, Aluminium-Bronze, optional: cooling elementHeating Systems: Electrically, by means of heating cartridges Application ExamplesPolymers: PS, PET, PC, PA, PMMA, HDPE, LDPE, LLDPE, PP, Polysulfone, PEEK, etc.Pump SizesFrom 22/22 (4,7 cm3/rev) up to 180/180 (3.200 cm3/rev)Operating ParametersViscosity: Up to 30.000 PasTemperature: Up to 350 °C (662 °F) Suction Pressure: Up to max. 120 bar (1.740 psig)Differental Pressure: Up to max. 250 bar (3.626 psig)Technical FeaturesSize(axial distance width)Spec. displacementvolume (cm3/rev)Capacity (l/h)*6 (70/70) 176 105-13707 (90/90) 371 222-28908 (110/110) 716 430-47009 (140/140) 1.482 900-885010 (180/180) 3.200 1920-17000Heizpatronen4x P [W]2x Spiraldichtung2x Kühlkörper TemperaturfühlerPT100TemperaturfühlerPT100The values listed are maximum values and must not coincide under certain circumstances. We will be pleased to offer you special materials and differing designs upon request.Type A/B A/2 B1 C ØD ØD1 ØD2 M n W1 W2 L L1 ØF WeightEXTRU-III 4,7-1 22/22 11 90 3 28 84 64,6 M12 4 22° -- 80 131 58 5,2 [kg]EXTRU-III 10,2-2 28/28 14 120 4 32 108 75 M10 6 40° -- 108 178 75 10 [kg]EXTRU-III 25,6-3 36/36 18 136 4 42 136 95 M12 6 40° -- 126 210 90 17 [kg]EXTRU-III 46,3-4 45/45 22,5 170 5 55 180 135 M20 4 43° -- 168,5 278 90 39 [kg]EXTRU-III 92,6-5 56/56 28 190 6 68 180 150 M20 6 45° -- 192 315 100 49 [kg]EXTRU-III 176-6 70/70 35 200 3,5 80 218 160 M20 6 60° -- 227 378 120 90 [kg]EXTRU-III 371-7 90/90 45 230 3,5 104 275 185 M20 8 22,5° 45° 275 444 150 149 [kg]EXTRU-III 716-8 110/110 55 310 5 125 300 215 M24 8 22,5° 45° 340 538 180 260 [kg]EXTRU-III 1482-9/1 140/140 70 425 7,5 165 430 285 M30 8 22,5° 45° 415 670 250 615 [kg]EXTRU-III 3200-10 180/180 90 500 7,5 220 530 350 M36 8 22,5° 45° 547 893 315 1170 [kg]Size(axial distance width)Spec. displacementvolume (cm3/rev)Capacity (l/h)*1 (22/22) 4,7 3-562 (28/28) 10,2 6-923 (36/36) 25,6 15-2304 (45/45) 46,3 28-4175 (56/56) 92,6 55-722W1W2n=8W1n=4D1CB1ErdungW1D2A / 2L~L1Dn x MFL´n=6Temperature sensor PT100Heating cartridges4xP [W]2x Spiral wound gasket2x Cooling elementoptionalTemperature sensor PT100* (Depending on the fluid characteristics and operating conditions)EXTRU-DimensionsPump SizesSize / Capacity / Displacement VolumeWITTE PUMPS & TECHNOLOGY GmbHEsinger Steinweg 44 aD-25436 Uetersen / Hamburg / GermanyT: +49 (0) 4122 / 92 87- 0 F: +49 (0) 4122 / 92 87- 49info@witte-pumps.comwww.witte-pumps.com24000 22000200001800016000140001200010000 9000 8000 7000 6000 5000 4000 3000 2500 2000 1500 1000 800 600 400 350 200 100 50 10 1 0,1 00 1 5 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200Drehzahl [1/min]Fördervolumenstrom [l/h] Drehzahlgrenzbereichfür PET, TPU, PB, PPDrehzahlgrenzbereichfür PE-LD, PE-HD, PSDrehzahlgrenzbereichfür PMMADrehzahlgrenzbereichfür PE-HD für Rohre, PE-LLDSpezifisches Fördervolu-men [cm³/Umdrehung]Flow rate [l/h]Pump speed [1/min]Spec. displacementvolume (cc/rev)Driving speed limit for PET, TPU, PB, PPDriving speed limit for PE-HD for pipes, PE-LLDDriving speed limit forPMMADriving speed limit forPE-LD, PE-HD, PS05/2012 EXTRU ENG REV1