Grundfos CM1

Grundfos CM1

Uniquely designed multistage centrifugal pump, the GRUNDFOS CM1-5 is designed for pumping potable and industrial water. The CM type pump consist of two main components: the motor and also the pump unit. Grundfos CM pumps are fitted with motors without needing a frequency converter. The shaft, impellers and chambers are made of stainless steel. The inlet and discharge parts are made of cast iron. These have 1″ whitworth threads for connection to pipework.

The Grundfos CM1-5 can be installed as part of systems or used as a separate stand-alone pump.

Grundfos CM1 Features:

  • Cast iron/304 SS construction-material code A.
  • Compact design.
  • Customized solutions.
  • High reliability.
  • Service-friendly.
  • Wide performance range.
  • Low noise level.
  • Electro-coated cast-iron parts.
  • Grundfos motor.
  • Superior dry running capabilities.
  • Reduced footprint.
  • Low maintenance costs.
  • Single pump model for multiple applications.
  • Reduced downtime.
  • High reliability.


  • Washing and cleaning.
  • Water treatment.
  • Temperature control (heating/cooling).
  • Chemical and pharmaceutical industries.
  • Building services.
  • Irrigation.

The CM1 is a great pump both in it’s construction and design. Utilising simplicity it’s operation makes it an ideal pump for both domestic and light commercial use. When combined with a PM1 flow controller it makes for an excellent combination.

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