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Part of the B911 Series

Ordering Code: 0386463

UPC: 098268918533

Lead Free: NO

1/2 In Bronze Combination Fill Valve And Backflow Preventer, Threaded Union End Connections, Teflon Tape

This 1/2 inch bronze combination fill valve and backflow preventer is 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 backflow preventer, model 9D and a bronze feed water pressure regulator, model 1156F, in one pre-assembled unit. The high capacity fill valve provides quick system filling and purging. It is designed for use in the boiler feed lines of hydronic heating systems and has 1/2 inch union NPT inlet x NPT theaded outlet connections. The maximum pressure is 100 psi (6.9 bar).

Product Features

  • Horizontal or vertical installation
  • Bronze body for durability
  • Threaded connections
  • Strainer screen
Backflow Preventer Type Dual Check with Atmospheric Vent
Body Finish Bronze
Body Material Brass
Body Pattern Inline
Brand Name Watts
Bypass No
Bypass Size Does Not Apply To Product
Cap And Tether No
Disc Material Rubber
Elbow Fitting No
Hazard Protection Level Non Health Hazard
Hot And Harsh Water No
Hydrant Connection No
Inlet Connection Size 1/2 IN
Inlet Connection Size-Metric 15 MM
Inlet Connection Type Union Female Threaded
Inlet Shutoff Valve Type No Shutoff Valve
Inlet Thread Type NPT
Lead Free NO
Maximum Temperature-Fahrenheit 212
Maximum Working Pressure-BAR 6.90
Maximum Working Pressure-PSI 100
Meter Type No Meter
Model Number B911T-M3
Outlet Connection Size 1/2 IN
Outlet Connection Type Female Threaded
Outlet Shutoff Valve Type No Shutoff Valve
Outlet Thread Type NPT
Part Number 0386463
Polymer Coating No
Pressure Operation Continuous
Protection Type Backpressure and Backsiphonage
Seat Material Plastic
Series B911
Strainer No