This standard specifies the basic requirements for valve fugitive testing technical requirements, inspection, testing, test classification and grade identification, implementation control, marking, valve certificates and retests and leakage measurement methods using the suction method. It is suitable for valves with fugitive requirements that have an operating temperature of -29°C ~ 538°C, a nominal size ≤ DN600, and a nominal pressure ≤ PN250 or CLASS1500.
T/WZBF 038-2023 history
2023T/WZBF 038-2023 Technical requirements for valve leakage detection