Danfoss proportional valves, motorized control valves, balancing valves, ball valves, thermostatic valves, solenoid valves, and expansion valves—among others.

Differential Pressure Control Valves - also commonly called DPCVs - are installed in heating systems to control sub-circuit pressure to a set or given maximum which also limits the flow at full load.

Differential regulators will maintain the downstream pressure at a set level between the reference pressure. Hence, the spring range determines the differential pressure and it can be changed by increasing or decreasing the tension on the spring.

How does a DPCV work? A DPCV includes a diaphragm, a spring and a capillary tube connecting the partner valve in the supply pipe and the DPCV valve in the return pipe to control the circuit pressure loss.