NK Pumps

Grundfos NK/NKG pumps are used in water supply, industrial pressure boosting, industrial liquid transfer, HVAC (heating, ventilation and air-conditioning), irrigation and process industries.

Grundfos offers a virtually limitless range of long-coupled (NK) end-suction pumps. Their sturdiness and reliability make them ideal for use in demanding environments such as the following:

  • District heating plants
  • Heating systems for blocks of flats
  • Air-conditioning systems
  • Cooling systems
  • Wash down systems
  • Other industrial systems.


    • Optimized hydraulics in housing and impeller = unimpeded liquid flow
    • O-ring seal between pump housing and cover = no risk of leakage
    • Housing, impeller and wear ring in different materials = improved corrosion resistance, no sticking elements
    • Back pull-out design for easy dismantling for service
    • Pump is electro-coated to increase corrosion resistance
    • Available with IE1, IE2 and IE3  motors
    • PN 10/16 and 25 bar
    • Temperatures up to 180 °C