The horizontal water pump from Grundfos is a versatile water pump suitable for reliable water supply applications. Horizontal pumps are well-suited for various primary functions, including water supply, boosting pressure in industrial processes, fluid transfer in HVAC (heating, ventilation, and air conditioning) systems, and irrigation.

The Grundfos NB/NBG series horizontal water pump is a single-stage, non-self-priming centrifugal pump designed for pumping water without cavitation. It features an axial suction port and a radial discharge port, with a horizontal shaft. The NB/NBG models are composed of close-coupled pumps, conforming to either EN733 or ISO2858 standards, ensuring a reliable and efficient pumping solution.



  • District heating plants
  • Heating systems
  • Air-conditioning systems
  • Cooling systems
  • Wash down systems
  • industrial systems


  • Hydraulic system suitable for the casing and impeller allows fluid flow without obstruction.
  • O-ring seal between the pump casing and cover ensures leak-free operation.
  • Housing, impeller, and wear ring are made of different materials to enhance corrosion resistance and prevent components from sticking together.
  • Water pump is coated with CED (Cathodic Electro Deposited) for increased corrosion resistance.
  • Available for installation with IE1, IE2, and IE3 motors.
  • Various materials and shaft seals are available for customization.
  • PN 10, 16, and 25 bars.
  • Suitable for high temperatures up to 140°C.


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