Short description
This Standard Practice covers additional requirements for material, design, dimensions, fabrication, non-destructive examination, and pressure testing of metallic valves intended for service at cryogenic temperatures. Unplanned non-cryogenic events, such as auto-refrigeration during gas blow-down events where low temperatures may result, are outside the scope of this document. This Standard Practice applies to cryogenic gate, globe, butterfly, ball, and check valves, and may be used in conjunction with other valve-specific standards.