Group Standards of the People's Republic of China CN / TUANTI
Latest
T/WZBF 042-2024
Scope
This document specifies the terms and definitions, structural types, technical requirements, materials, test methods, inspection rules, quality certification documents, markings, packaging and supply, and ordering requirements for flanged oxygen ball valves. This document is applicable to working pressure not greater than 21MPa, nominal size DN15 ~ DN600 (NPS1/2 ~ NPS24), oxygen medium temperature -30oC ~ 200oC, dew point not higher than -30℃, volume fraction greater than 23.5% (other gases are not Reactive gases) Oxygen ball valves are manufactured.