backflow preventer
backflow preventer, Total:10 items.
The international standard classification for "backflow preventer" includes: Water supply systems , Other valves .
The Chinese standard classification for "backflow preventer" includes: Outdoor water supply and draining engineering , Valve .
Group Standards of the People's Republic of China
- T/ZZB 2227-2021 Copper low resistance backflow preventer 2021
- T/ZZB 1973-2020 Reduced-pressure type backflow preventer
- T/CCMSA 40624-2021 Backflow preventer
Professional Standard - Urban Construction
- CJ/T 344-2010 Backflow freventer with intermediate atmospheric vent
- CJ/T 160-2002 Backflow preventers
- CJ/T 160-2010 Double check valve backflow prevention assembly
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 25178-2020 Reduced-pressure type backflow preventer
- GB/T 25178-2010 Reduced-pressure type backflow preventer
Professional Standard - Machinery
- JB/T 11151-2011 Low-resistance backflow preventer
Professional Standard - Recommended Standards for Engineering Construction
- CECS 259-2009 Low resistance backflow prevention device application technical specification
Reverse pawl torque for child resistant type ia closers,backflow preventer,Double check valve backflow preventer,resistance backflow preventer
