GK Series
Product Type:
External Gear Pumps


With the power to handle the most advanced pumping needs, the GK Series pumps feature a compact size, pulseless delivery, and high-precision performance. A cavity style design delivers benefits like no dynamic seals and chemical resistance, making the GK Series ideal for a variety of fluid handling applications. Durable and dependable, the GK Series also ensures a tailor-made solution for your specific needs with a wide range of available options, materials, and configurations.

Performance Summary

Flow Rate (min)
1.58 L/min
0.42 US gpm
Flow Rate (max)
12.6 L/min
3.3 US gpm
Differential Pressure (max)
3.4 bar
50 psi
System Pressure (max)
103 bar
1500 psi
Temperature Range
-46 to 54°C
-50 to 130°F
Viscosity Range 0.5 to 1500 cP
2.3 kg
5.1 lbs
Standard Ports 3/8"-18 NPT(F)
Recommended Max Speed 4000 RPM


GK Datasheet

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 K23: 3.15 ml/rev (0.83 US gal/1000 rev)


  • Magnetic Drive Gear Pump
  • Cavity Style
  • Two Helical, Shafted Gears
  • Sleeve Bushings
  • O-ring Seals

Wetted Materials

  • Base Materials
    • 316 Stainless Steel
  • Gears
    • PTFE
  • Static Seals
    • PTFE


  • Driven & Driving
    • Ferrite
    • Rare Earth

Product Enhancements

  • Carbon Bushings
  • Deck Ports

Related Products


For Distributors only: Select values for each attribute below. As you change the values, the table below will filter to show you only those products that conform to your specifications.

Configurator pricing is for planning purposes only, official product pricing is available in the Price List – downloadable from the Distributor Portal.

Download technical specifications here.

Gear Set:

Gear Material:

Static Seals:

Base Materials:

Drive Mount:

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