The differential pressure control valve is to adjust the pressure difference between the two points of the hydraulic circuit. keeps time at the set value. The device is placed in the return pipe of the circuit and capillary It is connected to the valve on the flow pipe. Then arrange the entire flow can be used for. Differences due to complete or partial closures are used to limit the pressure increase. It can be used in two-way thermostatic or motor valve systems with flow rates.