The ultimate in domestic circulators from Grundfos

Grundfos, domestic circulators

The Alpha2 range of domestic circulating pumps from Grundfos Pumps has an A Energy Label and is described as the most advanced energy-efficient domestic circulator of its kind on the market. The reduction in power consumption has been achieved using permanent-magnet motor technology. Using pressure-controlled operation, power consumption can be reduced to as little as 5 W.

Maximum power consumption is 32 W for the 15-50 model and 45 W for the 15-60; the numbers indicate head in kPa.

The European EuP Directive requires that only A-rated glandless circulators can be installed from 2013. With over 120 million circulator pumps in Europe, the estimated energy saving is 44 000 GWh a year — equivalent to the output of five nuclear power stations.

For more information on this story, click here: July 10, 168
Related links:
Related articles:



modbs tv logo

Grenfell is the building industry's Piper Alpha says CIBSE

The recent passage of the Building Safety Act is a welcome recognition of the fact that making safe buildings is a highly skilled operation says the Chartered Institution of Building Services Engineers, endorsing the need for more effective regulation and a profound change in culture.

Underlying project-starts uptick indicates gradual recovery, Glenigan data suggests

  • 13% rise in detailed planning approvals against the preceding three months
  • 18% decline in main contract awards against the previous year
  • 9% increase in underlying starts during the three months to May

Glenigan has released the June 2022 edition of its Construction Review.