Watts 8 1/2 in x 5 1/4 in Boiler Feed Valve w/Backflow Preventer, FNPT and NPT Union - B911-M3

WattsSKU: C1931455
MPN : 911-M3
Weight : 3.18 lb


$239.30 $385.97

Availability : Usually Ships in 7-10 Business Days

Combination backflow preventer and feed water pressure regulator in one pre-assembled unit, this WATTS boiler feed valve with backflow preventer is for use in residential and commercial hydronic heating systems. Model provides make-up water to the boiler and can prevent backflow when the supply pressure falls below the system pressure.

ItemBoiler Feed Valve w/Backflow Preventer
Pipe Size1/2 in
Length8 1/2 in
Height5 1/4 in
Connection TypeFNPT and NPT Union
Adjustment Range10 to 25 psi
Max. Pressure100 psi
Max. Fluid Temp.212 Degrees F
Body MaterialBronze
StandardsASSE 1012