Grundfos NK, NKG Pumps
Grundfos NK, NKG Pumps

NK, NKG

Single-stage Standard Pumps

NK, NKG – Single-stage Standard 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 end-suction pumps are multi-purpose pumps suitable for a variety of different applications requiring reliable and cost-efficient supply. End-suction pumps are used in five main areas of application: water supply, industrial pressure boosting, industrial liquid transfer, HVAC (heating, ventilation and air-conditioning), and irrigation.

The pumps are all non-self-priming, single-stage, centrifugal volute pumps with axial suction port, radial discharge port and horizontal shaft. The Grundfos NK/NKG range comprises a complete series of long-coupled pumps that comply fully 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. Even the largest pumps can thus be serviced by one person with a crane. The ISO2858 range of pumps are available with a bearing life of 100,000 hours, and can be fitted with double seals. They available in a stainless steel version as an option.

  • Flow, Q: max. 1300 m³/h
  • Head, H: max. 160 (250) m
  • Liquid temp: -35°C to +140°C (220°C)
  • Operating pressure: max. 16 (25) bar
  • District heating plants
  • Water supply systems Air-conditioning systems
  • Cooling systern
  • Washdown systems
  • Fire fighting systems
  • Other industrial systems
  • Industrial pressure boosting
  • Industrial liquid transfer
  • Desalination plants
  • Standard dimensions according to EN 733 and 150 2858 standards
  • Comprehensive operating range
  • Robust design
  • Flexibility
  • Back pull-out design
  • Self-flushing mechanical seals
  • EN 12756 shaft seal
  • Enclosed, balanced impeller
  • CED coating
  • Standard IE3 class motors
  • Various types of shaft sealing depending on liquid, temperature and pressure
  • Adaptability of materials
  • Loose flange
  • High inlet pressure
  • Bearing monitoring systems
  • Diesel drive

DESCRIPTION