POLY – Reactor Extraction Pump

High-pressure gear pump for the discharge of medium to high viscosity media from the reactor.

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POLY high-pressure gear pump for the discharge of medium to high viscosity media from the reactor. The extra large inlet opening guarantees an even flow of product to the gear wheels even under vacuum or extremely low NPSH conditions.

Offered with either a round inlet port, by means of which the suction flange of the pump is directly connected to the outlet flange of the reactor or as a low NPSH version, where the pump is connected between the pump and reactor flanges, in order to achieve an even larger and shorter inlet port.

HousingNon-alloyed and alloyed steels · cast steel · with optional surface coating
GearsNitrated steel · tool steel · special steel · with optional surface coating · helical gearing · herringbone gearing
Friction BearingsTool steel · NiAg (nickel-silver) · Al-bronze · special materials · with optional surface coating
Shaft Seal(Vacuum) viscoseal · stuffing box · combination of viscoseal and stuffing box · double-action, buffered mechanical seal
Heating SystemsHeat transfer oil · steam
Viscosityup to 40.000 Pas
Temperatureup to 350°C (662°F)
Inlet PressureVacuum to max. 40 bar (580 psig)
Differential PressureUp to 250 bar (3625 psig)
Pump SizesFrom 22/22 (4.7 cm3/U – 10 kg/h) up to 280/280 (12,000 cm3/U – 30,000 kg/h). Intermediate sizes, with wider gear wheels for lower differential pressure, are available as standard, e.g. 152/254 (3,170 cm3/U)