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New pump completes range of extra-large CR pumps

November 8, 2021  By Ground Water Canada

Grundfos has added the new CR 255 pump to its range of extra-large CR pumps. With the CR 185 and CR 215 pumps, their flow range capacities, respectively, are up to 240 m3/h, 280m3/h, and 320m3/h.

The new hydraulic design of the CR 255 pump improves everything from impeller and guide vanes to inlet, discharge port, sleeve, and diffuser, taking current energy efficiency and performance standards for vertical multi-stage in-line pumps to the next level.

The new CR range delivers world class reliability, with pumps that are tested to the absolute limits and beyond to offer optimized operating economy via enhanced hydraulic efficiency, reduced downtime and lower operating costs. To ensure maximum efficiency, the hydraulic design of the new CR range has been optimized to move liquids with as little friction and turbulence as possible.


The shaft seal of the Grundfos CR pumps is developed in-house and is available in various material combinations to suit different liquid, pressure, and temperature requirements. Thanks to its balanced design, the CR seal can withstand a great amount of pressure and can expect a longer service life compared to other large pumps. The pumps also are designed to reduce the risk of cavitation and increase the robustness and life cycle of the pump.

Grundfos uses state-of-the-art tools to design its CR pumps, including computer simulations of pump operating conditions to verify and validate pump components. Following additional simulation and physical testing of the assembled pump, extensive field testing is used to test the new CR range in real live operating environments.

Every single CR pump that leaves the factory is individually tested and verified before being shipped. This means that Grundfos can guarantee that all pumps perform according to specifications and deliver the reliability and performance required.

CR pumps are ideal for water supply, water treatment and almost any industrial solution. The modular approach of the new CR range means that every part of the pump can be tailored to requirements.

The CR pump range provides literally millions of solutions to fit to almost any application need:

  • High pressure applications including filtration, reverse osmosis, steam boiler feed, washing and cleaning, and industrial processes
  • Hot liquid applications including steam boiler feed, washing and cleaning, mineral oils, industrial processes, and chemical industries
  • Difficult liquid applications including in chemical industries, pharmaceutical industries, petrochemical industries, refineries, distilling plants, and the paint industry
  • Temperature control applications including temperature control systems for electronic data processing, casting and moulding tools, laser equipment, oil processing, medical equipment, chemical processes, and industrial cooling and freezing processes
  • Applications for special installations that require a different pump design including shipping, mobile applications, firefighting, installations in earthquake-prone areas or remote areas, deep-well pumping, and installations with limited space

“The Grundfos CR range has always been characterised by its great customisability,” Morten Gylling, product director, Multistage, Grundfos, said. “You can customize these pumps to virtually any application, with many hardware and control options to choose from. The pumps can be delivered with a range of certificates, and to round out our CR solutions, we offer value-added Service offerings that keep your system running in peak condition.”

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