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Grundfos

Product Focus August 2021:

Grundfos CR vertical, multistage, centrifugal in-line pump

The Grundfos CR multistage centrifugal pumps are designed for a wide range of applications 

Offering a “mix and match” modular approach, so you can configure a pump that meets your exact needs.

The basic Grundfos CR pump range is available in four different materials: cast iron, two grades of stainless steel and titanium. Thirteen flow sizes are capable of producing up to 180 m3/h at 50 bar, with a variety of shaft seals, rubber materials and supply voltages.

Grundfos also offer highly efficient “E” version pumps with a built-in frequency converter  or pumps with an external frequency inverter. These combine the very best of pump technology with highly efficient motors and variable speed drives. You will never use more energy than you need.

Applications

The Grundfos CR multistage centrifugal pump family works for:

  • Water supply systems
  • Washing systems
  • Water treatment
  • Cooling systems
  • Boiler feed system's
  • Industrial plant - Including those for high-pressure, hot, dangerous, flammable and aggressive liquids

 

Key features

  • Balanced shaft seal
  • Wear-resistant bearing material
  • Laser-welded impellers
  • Energy-optimised pumps (EU minimum efficiency index (MEI) benchmark of MEI ≥ 0.70)
  • Premium efficiency IE3/IE4 motors
  • Easy service, minimal downtime
  • High pressure
  • High temperature
  • Difficult liquids

Typical Applications Include:

  • Standard: For pumping water-like liquids for distribution of light treatment, Offering standard CR or the CRI water pump.
  • Industrial: Modular solutions to cope with very high pressures, very high temperatures, very aggressive, very corrosive or very dangerous liquids. The industrial range includes the CR, CRI, CRN and CRT lines.

Maintenance

  • The pump bearings and shaft seal are maintenance free                                                                  (please see bearing replacement interval table in manual)
  • Motors fitted with grease nipples should be lubricated with a high temperature lithium based grease       (See instructions on fan cowl)
  • Grundfos service kits are available containing mechanical seals, gasket kit and wear kit.                        (We do not advice non Grundfos service kits)

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