Grundfos ALPHA2

Grundfos ALPHA2 Circulator Pump

A typical pump in a system runs at full speed day and night. The ALPHA2 (N) from Grundfos adapts to the variable demand while keeping your comfort, saving a considerable amount of electricity.

The installation of a GRUNDFOS ALPHA2 (N) pump will decrease the power consumption considerably, reduce noise from radiator valves and similar fittings, and improve the control of the system.

The unique Grundfos AUTOADAPT function ALPHA2 (N) will analyse and adjust automatically to your heating and water use demands. Available in in both stainless steel for hot water (open) systems and cast iron for heating (closed) systems.


  • Heating systems


  • Robust design – The pump is made of materials that ensure excellent corrosion resistance. Designed for open systems ALPHA2 N is constructed from quality stainless steel with a high grade composite impeller. The ALPHA2 is constructed from rugged cast iron and is the perfect choice for closed systems.
  • Quiet operation – Permanent magnet motor provides an operating noise level at less than 43 decibels, the ALPHA2 is whisper quiet.
  • AUTOADAPT – The pump learns the user pattern of the customer and learns from it. It only runs when hot water is needed.
  • Energy efficient – The reduction in power consumption has been achieved by using the latest permanent magnet motor technology.