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During the COVID-19 crisis, as production must continue to supply all citizens, SPS Pumps will remain open in order to help our customers with their pumps and parts needs.

Grundfos NK
Single Stage
End-Suction Standard Pumps

Grundfos NK
Grundfos NKG
Grundfos NKE
Grundfos NKGE

Grundfos NK family are multi-purpose end-suction pumps for reliable and cost-efficient applications
such as water supply and irrigation.

Their back pull-out design enables removal of the motor,
coupling, bearing bracket and impeller without disturbing the pump housing or pipework;
these long-coupled pumps comply fully with either EN733 or ISO2858.


  • Optimised hydraulics in housing and impeller for unimpeded liquid flow
  • O-ring seal between pump housing and cover means no risk of leakage
  • Back pull-out design for easy dismantling for service
  • Adaptable to each application
  • Shaft seal following EN 12756


Technical Data

  • Motor: 0,55 460 kW
  • Flow rate (Q): up to 1500m3/h
  • Hmt: 150 m
  • Liquid temp: -25 °C à + 200 °C
  • Discharge Diameter : DN32 — DN250
  • Free passage: 4 – 34 mm
  • Maximum Pressure: 16/25 bar
  • Hydraulic efficiency: 88,5 %



  • Available with single and double seal arrangements
  • Available in Cast iron with multiple impeller material choices
  • Version NKG
  • Version NKE with integrated inverter
  • Available in full stainless steel 1.4408 or Duplex 1.4517


  • Raw water intake
  • Drinking water treatment
  • Water distribution
  • Flood control
  • Wastewater treatment
  • Big HVAC installation
  • Industrial applications