When there is a demand for constant flow and constant head, a speed-controlled pump can replace a throttle valve for adjusting the flow.
The speed can be adjusted between 25 % and 100 %.
This feature is especially beneficial in:
- Heat surfaces
- Cooling surfaces
- Heating systems with 3-way valves
- Air con. system with 3-way valves
- Chiller pumps
The calculated control mode for constant curve is a feature of the Grundfos ALPHA range, MAGNA3 and TPE3 circulator pumps.