Bowie rotary gear pumps are engineered for high-volume output and exceptional durability in demanding industrial environments.

The Series 300, 400 and 500 models — in nominal connection sizes of 50 mm, 75 mm and 100 mm — are optimised for heavy-duty fluid transfer.
At the maximum recommended 400 rpm with zero discharge pressure the series delivers approximately 530 l/min (2"), 901 l/min (3") and 1,173 l/min (4"). Actual output is affected by system pressure, viscosity and suction conditions.
Built for continuous industrial transfer, not intermittent duty.
50, 75 and 100 mm nominal connections cover most transfer duties.
Few moving parts, straightforward strip and rebuild.
Output holds up on thick product where a centrifugal falls away.
Three other ranges that may suit the duty better.

Viscous, abrasive and shear-sensitive liquid media at consistent, low-pulsation flow.

Pulsation-free, low-shear transfer with flow independent of pressure.

Fully swept 316 stainless chamber for hygienic and sanitary process duty.
Send a duty point, a failed part number, or a drawing. We will come back with a sized selection and a lead time.