Proportional pressure is used in circulation systems with a pipe system with low pressure loss and control valves to generate a variable flow.
The pressure drop in the control valves is lower than 50 % of the total pressure drop.
- Heating systems with 2-way valves
- Air-con system with 2-way valves
The calculated control mode for proportional pressure is a feature of Grundfos MAGNA3 and TPE3 circulator pumps.