Cryogenic Butterfly Valve
Cryogenic Butterfly Valves are suitable for low-temperature media below -29℃ and are generally classified into three temperature ranges: -29℃ to -46℃ (or -50℃); -46℃ (or -50℃) to -101℃ (or -110℃); -101℃ (or -110℃) to -196℃. Applications below -196℃ are extremely rare and typically involve media such as liquid hydrogen or liquid helium. For service at -196℃ and above, the valves are designed and manufactured in accordance with BS 6364, ISO 28921-1, MSS SP-134, SPE 77-200, GB/T 24925, and other applicable standards. Pressure ratings include CL150, CL300, and CL600 (or PN16 to PN110). Bonnet extension height is designed according to the requirements of SPE 77-200, and customized designs can be provided if customers have special requirements for extension height.
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