PWV series pressure controlled water valves are used in refrigeration system. It keeps the pressure in a certain value to maintain normal running and increase refrigeration effect. Also it can save water by cooling water circulation.

PWV series pressure controlled water valves are usually installed on the inlet of condenser, which can regulate the flow of cooling water according to the change of condensing pressure. When condensing pressure of compressor rises, valve is turned up automatically, so more cooling water enters the condenser to accelerate the condensing of refrigerant. Reversely, when condensing pressure of compressor drops valve is turned down automatically, so cooling water reduces and the condensing pressure is kept with certain range.