T/WZBF 002-2019 The inspection and testing of steel valves
T/WZBF 002-2019 The inspection and testing of steel valves
Basic Information
Scope
Scope: This standard specifies the terms and definitions, inspection, testing, and supplementary testing, pressure testing, test results, pressure testing methods, and qualification certificates for valves used in the petroleum, petrochemical, and related industries. This standard applies to gate valves, shut-off valves, plug valves, ball valves, check valves, and butterfly valves made from metal and metal-metal sealing pairs, metal-non-metal elastic sealing pairs, and non-metal with non-metal materials. Main technical content: This standard specifies the inspection and testing content for steel valves, pressure testing equipment and methods, and the qualification determination for valve testing. This standard also specifies the valve qualification certificates and re-testing requirements.