Pump Technology Newsletter Signup
Get the Engineering360
Stay up to date on:
Hydraulic and pneumatic pump construction, performance (controls and operation), and application notes from the field.

Gear Pumps

Product Announcement from GRI Pumps (A Gorman-Rupp Company)

Gear pumps are designed primarily for metering and transfer applications. Their modular design allows a wide variation of flow ranges with a standard parts set. Gear pumps are self-priming and are "constant flow" pumps when RPM and differential pressure are constant. The materials of construction for bodies, gears and seals, provide a wide range of fluid compatibility.

Pump Specifications:

  • Flow Rates - Range to 2100mL/min; maximum pressure 30 psi
  • Motor - 12VDC, 24VDC, nominal, reversible, brush
  • Fluid Temperature - To 180°F (82°C)

Materials in Contact with Solution:

  • Body - PPS Polymer (Ryton®)
  • Seal - Nitrile
  • Shafts - 630 Stainless Steel
  • Hose Connectors - Nylon
  • Gears - PPS Polymer (Ryton®)
  • O-Rings (Elastomers) - Nitrile


  • Long life
  • High pressure
  • Reversible
  • Self-priming
  • Pump assemblies made with PPS Polymers
  • Compact and durable
  • Excellent chemical compatibility
  • Positive displacement