polyrex⁶ PR

Pressure increasing pump for the polyolefin industry

Processes in the manufacture of polyolefins require high-pressure gear pumps which build up pressure for the units after the compounder. The new performance driven geometry of polyrex® x⁶ class results in high throughput rates at high flow rates and low shear stress. polyrex⁶ can convey low viscosity polymers where earlier pump generations failed. Thanks to increased pump performance, the specific conveying capacity is 50% higher compared to same housing size pumps of older generations. For debottlenecking existing plants, MAAG offers alternative housing designs with matching interfaces to older pump generations.

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Technical data
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A range of typical pumping media (EN)

Low density polyethylene (LDPE)
Linear low density polyethylene (LLDPE)
High density polyethylene (HDPE)
Polypropylene (PP)
Ethylene propylene dimonomer (EPDM)
And others

Technical Data

Rotational speed [U/Min]
max. 85
Torque (NM)
max. 1625000
Differential pressure [bar]
max. 320
Viscosity in mPas
20000000
Temperature in °C
Up to 350
Output l/min
max. 1650
Housing
Steinless steel / carbon steel
Gear shafts
* Nitrided steel* Tool steel
Shaft Seals
viscoseal
Pump heating
With heat transfer medium max. 350°C, max. 40 bar
Installation
The polyrex® gear pump is flange-mounted to the extruder or mixer by means of an adapter
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