This standard specifies the terminology, structural form, technical requirements, test methods, inspection rules, signs, shipment and storage of cryogenic valves. This standard applies to low temperature gate valves, globe valves, check valves, ball valves and butterfly valves with flanges, wafers and welded connections with nominal pressure PN16~PN420, nominal size DN15~DN600, medium temperature -196℃~-29℃. Other cryogenic valves can also be used as a reference.
GB/T 24925-2010 Referenced Document
ASTM A35 Recommended Practice for Annealing of Miscellaneous Rolled and Forged Carbon-Steel Objects