T/ZZB 2275-2021
Nickel base alloy surfacing ball valves for corrosion protection (English Version)
- Standard No.
- T/ZZB 2275-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/ZZB 2275-2021
- Scope
- This document specifies the structural type, basic requirements, technical requirements, test methods, inspection rules, marking, protection, packaging, storage and transportation, and quality commitment of nickel-based alloy cladding ball valves for corrosion resistance. This document is applicable to nominal pressure PN16 ~ PN400, nominal size DN50 ~ DN1400, pressure level Class150 ~ Class2 500, nominal size NPS2 ~ NPS56, applicable temperature -46 ℃ ~ 425 ℃, using flange connection, nickel base for transporting corrosive media Alloy cladding forged steel ball valve.
T/ZZB 2275-2021 history
- 2021 T/ZZB 2275-2021 Nickel base alloy surfacing ball valves for corrosion protection
