Watts Series 911 combination fill valve and backflow preventer for boiler feed lines. Pre-assembled unit combines a Model 9D backflow preventer with Model 1156F pressure regulator to provide make-up water and prevent backflow when supply pressure drops below system pressure. 1/2" union solder inlet x NPT outlet, bronze body construction, rated to 100 PSI and 212°F.
Watts B911S 1/2" Sweat Combo Backflow Preventer & Pressure Reducing Valve
Watts
$209.95
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Watts
Watts B911S 1/2" Sweat Combo Backflow Preventer & Pressure Reducing Valve
- SKU:
- B911S
- Product Type:
- Combination Backflow Preventer & Pressure Reducing Valve
- Subcategory:
- Boiler Fill Valve
- Application:
- Residential/Commercial
- System Type:
- Boiler, Hydronic
- Installation Type:
- OEM Replacement
- Temperature Range:
- 32°F to 212°F
- Setpoint Range:
- 10-25 PSI (set at 15 PSI)
- Pressure Rating:
- 100 PSI
- Inlet Size:
- 1/2" Sweat (Solder)
- Connection Type:
- Sweat/Solder and NPT
- Connection / Joint:
- Sweat/Solder inlet, NPT outlet
- Material:
- Bronze
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