B911S-M3, 1/2" Boiler Fill (1156) & Backflow Preventer (9D) Valve Combination, FNPT x Sweat Union
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B911S-M3, 1/2" Boiler Fill (1156) & Backflow Preventer (9D) Valve Combination, FNPT x Sweat Union B911S-M3, 1/2" Boiler Fill (1156) & Backflow Preventer (9D) Valve Combination, FNPT x Sweat Union B911S-M3, 1/2" Boiler Fill (1156) & Backflow Preventer (9D) Valve Combination, FNPT x Sweat Union B911S-M3, 1/2" Boiler Fill (1156) & Backflow Preventer (9D) Valve Combination, FNPT x Sweat Union
Watts 911 series boiler make-up combo includes 1156 pressure regulating/fill valve and 9D series dual check backflow preventer with atmospheric vent.

Technical Specifications:
  • Size: 1/2"
  • Connections: FNPT x Sweat Union
  • Max Operating Temperature: 212°F
  • Max. Working Pressure: 100 psi
  • Adjustable Range: 10 - 25 psi (factory set at 15 psi)


Features:
  • All-bronze (fill valve & backflow preventer) construction
  • Designed specifically to provide make-up water for boiler applications
  • High-capacity performance

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B911S-M3, 1/2" Boiler Fill (1156) & Backflow Preventer (9D) Valve Combination, FNPT x Sweat Union

  • Views: 165
  • Brand: Watts
  • Model: B911S-M3
  • MPN: 0386462
  • Availability: Out Of Stock
  • Usually ships: Upon availability
  • $ 165.95
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