Watts® 1/2-B911S-M3 Combination Fill Valve and Backflow Preventer, 1/2
Description
Use in commercial and residential hydronic heating systems to provide make-up water to the boiler, and prevent backflow when supply pressure falls below system pressure. It consists of a bronze Watts Model 9D backflow preventer and a bronze Watts Model 1156F feed water pressure regulator in one pre-assembled unit. High capacity fill valve that provides quick system filling and purging. It is designed for use in the boiler feed lines of hydronic heating systems. Maximum Pressure: 100psi (6.9 bar).
- 1/2"
- Bronze
- Includes #9D backflow preventer & #1156F feed water pressure regulator in 1 pre-assembled unit
- Use in commercial & residential hydronic heating systems to provide make up water to the boiler & prevent backflow when supply pressure falls below system pressure
- Bronze body construction union solder x npt connections
- A high capacity fill valve that provides quick system filling & purging
- Maximum pressure: 100 PSI, 6.9 bar
- Meet lead free standards.