B911, B911S Bronze Combination Fill Valve and Backflow Preventer

B911S-bronze-combination-fill-valve-backflow-preventer

B911, B911S Bronze Combination Fill Valve and Backflow Preventer

Manufactured by: Watts Water Technologies

Model: B911, B911S

Series B911, B911S Bronze Combination Fill Valve and Backflow Preventers are for 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. Model B911 has union NPT x NPT connections. Model B911S has union solder x NPT connections. The Series B911, B911S has a 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.

Additional Information

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Technical Data

Available Materials:
Bronze

Pressure Rating:
to 100 psi

Available Sizes:
1/2in

Connection Types:
Union Solder, Threaded

Thread Types:
NPT

See product datasheet for additional details