Low temperature solenoid valve

Cryogenic Solenoid Valve Models: DW / CDW A cryogenic solenoid valve is an automatic control valve specifically designed for cryogenic applications where the medium temperature is below -20°C. Typical operating temperature ranges cover -40°C to -196°C (liquid nitrogen temperature). It is widely used in pipeline control for cryogenic fluids such as LNG, liquid oxygen, and refrigerants. Compared with ordinary solenoid valves, cryogenic solenoid valves have fundamental differences in materials and structure. The valve body material must be austenitic stainless steel (304/316L) that has been subjected to cryogenic treatment, which maintains good impact toughness even at -196°C, preventing low-temperature brittle fracture. The sealing system uses low-temperature resistant PTFE, FFKM perfluoroelastomer, or a metal bellows seal to address the risk of leakage caused by seal shrinkage at low temperatures. The structural design typically features an elongated bonnet (long-neck) configuration, isolating the packing box from the valve body to prevent the packing from freezing and failing at low temperatures. The cryogenic solenoid valves produced by Kaivex Valve Group are widely used in cryogenic engineering fields such as air separation units, LNG filling stations, medical cryopreservation, aerospace propellant supply, and petrochemicals.