POLY - Discharge Gear Pump
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 gearwheels 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.
Non-alloyed and alloyed steels · cast steel · with optional surface coating
Nitrated steel · tool steel · special steel · with optional surface coating · helical gearing · herringbone gearing
Tool steel · NiAg (nickel-silver) · Al-bronze · special materials · with optional surface coating
(Vacuum) viscoseal · stuffing box · combination of viscoseal and stuffing box · double-action, buffered mechanical seal
Heat transfer oil · steam
up to 40000 Pas
up to 350°C (662°F)
Vacuum to max. 40 bar (580 psig)
Up to 250 bar (3225 psig)
The values listed are maximum values and must not coincide under certain circumstances.
From 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).