These heavy-duty, durable, ductile iron or cast steel body, gas-powered suction stop valves are designed to control the flow of refrigerant in large industrial and commercial applications.
They remain normally open via a spring and require no pressure drop to operate. A single pilot solenoid valve is required to control a higher pressure refrigerant gas which closes these valves during evaporator defrosting.
If an electrical power failure occurs during the hot gas step of a defrost cycle, the auxiliary pressure pilot valve will keep main valve seat closed until pressure inside evaporator is reduced to the pressure setting on the pilot.
Available Model (Weld In)
HCK5W (Size: 5"0, 125mm), (Size: 6"0, 150mm)
HCK5 Gas Powered Suction Stop Valve, Hansen Technologies Ammonia Refrigeration