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Grundfos NK Long-Coupled Single Stage End Suction Pumps

Grundfos NK Long-Coupled End-Suction Pumps are single-stage, centrifugal solutions designed for efficient and dependable fluid transfer in industrial and commercial applications. Built to ISO 5199 standards and EN 733 performance ratings, these non-self-priming pumps feature axial inlet and radial outlet ports for optimized flow. The end-suction, back pull-out design simplifies maintenance by allowing internal components to be serviced without disturbing piping or motor alignment. With a compact footprint and a foot-mounted, fan-cooled motor on a common base frame, NK pumps ensure long-lasting performance and easy installation.

Grundfos NK Series Pumps for Commercial HVAC, Water Distribution, Pressure Boosting, Industrial Water Supply, and Process Applications

Long-Coupled End-Suction Centrifugal Pumps for Reliable Medium-Flow and High-Efficiency Pumping

Grundfos NK Series Pumps are long-coupled, end-suction centrifugal pumps designed for commercial HVAC, water distribution, industrial water supply, pressure boosting, process water, and general water transfer applications. Built for dependable performance and application flexibility, the NK range is well suited for systems that require reliable flow, efficient operation, and serviceable pump construction.

This standard end-suction layout makes the NK Series a practical option for mechanical rooms, utility systems, water distribution networks, and industrial pumping installations where conventional long-coupled centrifugal pump construction is preferred.

Typical NK Applications

  • Commercial HVAC systems
  • Heating water circulation
  • Water distribution
  • Pressure boosting
  • Industrial water supply
  • Process liquids transfer
  • General water transfer

Features

  • Long-coupled end-suction centrifugal pump design
  • Non-self-priming, single-stage centrifugal volute construction
  • Axial suction port and radial discharge port
  • Horizontal shaft configuration
  • Suitable for medium-flow water distribution and pressure management
  • NK bare-shaft pump-end configurations available
  • Designed for commercial HVAC, industrial, municipal, and water utility applications
  • Suitable for commercial heating and air conditioning systems
  • Useful for water pressure boosting and distribution networks

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