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watts b911
 
Watts Fill Valve and Backflow Preventer

Provide make-up water to the boiler, and prevent backflow


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

Documentation: Watts-911.pdf


Part No. Qty Unit Price
0386463 B9-11T (1/2 inch thread) $130.86
0386462 B9-11S (1/2 inch sweat) $130.86

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