GR Series Gear Pump

Brand: Flowserve Corporation

Capable of higher flows and pressures than GA Series pumps, GR Series pumps provide high efficiency, pulse-free pumping, even under the most challenging conditions.

They are designed to handle viscous fluids across a broad spectrum of flows and pressures.

The GR Series’ simple external design has only two moving parts and only one shaft seal to ensure long life and ease of maintenance.
  • Quiet, Pulse-Free Flow.
  • High-Speed Pump Capability.
  • Between Bearings Design.
  • Hydraulically Balanced Design.
  • Stuffing Box Accommodates Packing Or Mechanical Seals.
  • High-Capacity, Double Row Roller Bearing.
  • Self-Priming.
  • Run-Dry Capability.
  • Low NPSHR.
  • Back Pullout Design.


Operating Parameters

  • Flows to 275 m³/hour (1200 gpm)
  • Pressures to 35 bar (500 psi)
  • Speeds to 1800 rpm
  • Temperatures to 350° C (650° F)
  • Viscosities to 20000 CP

Size Range

  • Sizes from 40 mm (1.5”) to 200 mm (8”)

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