T/ZZB 1746-2020
Heating ventilation & air conditioning flow balance valve (English Version)
- Standard No.
- T/ZZB 1746-2020
- Language
- Chinese, Available in English version
- Release Date
- 2020
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/ZZB 1746-2020
- Scope
- This document stipulates the terms and definitions, classification and marking, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage and quality commitment of flow balancing valves for heating and cooling (hereinafter referred to as balancing valves). This document is suitable for regulating the flow of the circulating water system through the internal flow valve core in the central heating and air-conditioning circulating water system. The nominal pressure PN is not greater than 4.2 MPa, the nominal size is not greater than DN50, and the operating temperature is -10 ℃ ~ 130 ℃ balancing valve.
T/ZZB 1746-2020 history
- 2020 T/ZZB 1746-2020 Heating ventilation & air conditioning flow balance valve
