• Watts Boiler Water Feed Valve - SB1156F (0386422)

    - 1/2 Inch With Sweat Connection

    Product ID • WS12BF100999

  • $40.95
  • Quantity:
  • Free Shipping Eligible


Watts Series 1156F High Capacity Feed Water Pressure Regulators are for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water, and to maintain water pressure in the system at all times. It also provides make-up water to the system in the event of system leaks. It consists of an iron and bronze body construction with Sweat threaded inlet and outlet connections, a tight seating check valve, purge lever for manual purging, and a stainless steel strainer. Series 1156F has high capacity performance and simplified servicing design. It is suitable for use in the boiler feed lines of hydronic heating systems. Also available with union solder or union threaded connections. Maximum Pressure: 100psi (6.9 bar). The Watts SB1156F comes in a bronze valve body with union solder inlet connection.

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Technical Specs

Watts Boiler Water Feed Valve SB1156F (0386422) Specs

  • Maximum inlet pressure
    100 psi (689.5 kPa)
  • Maximum boiler temperature
    212F (100C)
  • Regulator set at
    15 psi (103.4 kPa)
  • Adjustment range
    10-25 psi (68.9-172.4 kPa)
  • Model SB1156F
    Bronze valve body with union solder inlet connection

Watts Boiler Water Feed Valve SB1156F (0386422) Features

  • High capacity fast fill and purge capability
  • Built-in check and strainer
  • Bronze construction

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