NK, NKG, NKE, NKGE end-suction long-coupled pumps



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

Grundfos end-suction pumps are multi-purpose pumps suitable for a variety of different applications demanding reliable and cost-efficient supply. End-suction pumps are used in five main fields of application: Water supply, industrial pressure boosting, industrial liquid transfer, HVAC (heating, ventilation and air-conditioning), and irrigation.
The pumps are all single-stage, centrifugal volute pumps with axial suction port, radial discharge port and horizontal shaft. The Grundfos NK(E)/NKG(E) range comprises a complete series of long-coupled pumps in full compliance with either EN733 or ISO2858. The pumps are of the back pull-out design enabling removal of the motor, coupling, bearing bracket and impeller without disturbing the pump housing or pipework. The ISO2858 range is available for various shaft seal options including double seal solutions and is also available in stainless steel execution.

Technical data*

Flow, Q:max. 1170 m³/hmax. 550 m³/h
Head, H:max. 216 mmax. 100 m
Liquid temp.:
-25 °C to +140 °C-25 °C to +140 °C
Max. system. pressure:25 bar.25 bar.


The Grundfos range of long-coupled (NK) end-suction pumps are ideal for use in demanding environments such as:

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


  • Standard dimensions according to EN and ISO standards
  • Wide range
  • Robust design
  • Compatible with Grundfos GO remote control (NKE, NKGE models only)
  • EN 12756 shaft seal
  • Various shaft seals options
  • Cast Iron, bronze or stainless steel impeller options
  • Cast iron or stainless steel pump housing options.

*for more detailed technical information please visit the Grundfos Product Center.





NB/NBG/NK/NKG(E) RANGES (Product brochures)

2-, 4- and 6-pole. 0.75 - 462 kW (OPTIMISED PERFECTION)

Grundfosliterature-4587964.pdf (759 KB)

NB(E), NBG(E), NK(E), NKG(E)

End suction pumps brochure (UK)

Release date: 06/16

Download PDF

4.9 MB - 12 pages

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01525 850000


Grundfos Pumps Ltd.
Grovebury Road
Leighton Buzzard
Beds. LU7 4TL

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01942 263628


Grundfos Service Ltd.
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