DGPV
Size Range from DN40 to DN125
Pressure Setting Range: A: 0~10.3 bar, D: 5.2~19.3 bar
Suitable for R12, R22, R502, R134a, R404a, R507, R717 and other compatible refrigerants.
Temperature Range: -46°C to +120°C.
These piston type, gas pressure powered, normally open, heavy duty, cast iron bodied valves are built with control valve precision. All are equipped with flanges and manual lift stem. These special valves are used on low temperature applications to positively close suction lines and both liquid legs and gas returns on flooded evaporators. Because of the spring, no line pressure drop is required to open the valve; therefore, on suction line applications pressure drop is nominal; on flooded evaporators normal gravity circulation is unrestricted. Being pressure powered to close, this valve can overcome sticking at low temperatures caused by the presence of viscous oil. Applications: It is suitable for the return air low pressure line and the hot gas defrosting system.
