Magnetically Driven External Gear Pumps GJ Series From Micropump

Magnetically Driven, External Gear Pumps, GJ Series, MicropumpThe GJ Series magnetically driven external gear pump delivers exceptional pumping performance for any high-precision application. These compact, magnetically driven gear pumps feature a cavity style design with no dynamic seals. With benefits like chemical resistance, abrasive fluids pumping and smooth, pulseless delivery, GJ Series pumps are available with a wide range of options, as well as in standard and OEM configurations.

Product Features

  • Small Size

  • Smooth, Pulseless Delivery

  • Chemically Resistant

  • Easy to Service

  • Proven Reliability

  • Advanced Pump Technology

  • Wide Range of Options

  • OEM Configurations

  • High-System Pressure Capability

  • Enhanced Efficiency

Displacement Range

  • Gear Set N21: 0.316 ml/rev

  • Gear Set N23: 0.64 ml/rev

  • Gear Set N25: 0.91 ml/rev

  • Gear Set N27: 1.23 ml/rev


  • Magnetic Drive Gear Pump

  • Cavity Style

  • Two Helical, Shafted Gears

  • Sleeve Bushings

  • PTFE Gaskets and Seals

Wetted Materials

  • Base Materials
    - 316 Stainless Steel
    - Alloy 20
    - Titanium
    - Hastelloy C-276®

  • Gears
    - PPS
    - PEEK
    - PTFE

  • Static Seals
    - Viton®
    - PTFE


  • Driven & Driving
    - Ferrite
    - Rare Earth

Product Enhancements

  • Internal Bypass
  • Deck Ports
  • Tri-Clamp Fittings

Performance Summary

Flow Rate (min)
158 mL/min
Flow Rate (max)
6765 mL/min
Differential Pressure (max)
80 psi
System Pressure (max)
300 psi
Temperature Range
-50 to 250 °F
Viscosity Range
0.2 to 1500 cP
1 lbs
Standard Ports
1/8"-27 NPT(F)
Recommended Max Speed
5500 RPM

Product Datasheet

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