T/ZZB 2057-2021
Low temperature butterfly valve (English Version)
- Standard No.
- T/ZZB 2057-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/ZZB 2057-2021
- Scope
- This document stipulates the terms and definitions, basic requirements, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage, and quality commitment of cryogenic butterfly valves. This document is applicable to low-temperature butterfly valves (hereinafter referred to as butterfly valves) with nominal pressures PN16~PN100 (Class150~Class600), nominal diameters DN100~DN800 (NPS4~NPS32) and temperatures -196°C~-29°C.
T/ZZB 2057-2021 history
- 2021 T/ZZB 2057-2021 Low temperature butterfly valve
