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Hydronic BackFlow Preventers and AutoFill Valves

  • Caleffi Autofill Boiler Feed Valve - 553549A = v14477

    Caleffi Autofill Boiler Feed Valve

    Caleffi 553549A automatic filling unit, anti-scale, visual system pressure setting indicator. Complete with manual shutoff valve, strainer and check valve

  • Caleffi Backflow Preventer - 573493A = v14478

    Caleffi Back Flow Preventers

    Caleffi Back Flow Preventers with Dual check continuous pressure backflow preventer with atmospheric vent. NPT Female union connections, threaded

  • Caleffi 1/2 inch SW Boiler Feed and AutoFill Combination - 573009A = v14480

    Caleffi Backflow Preventer Auto Fil

    Caleffi Backflow Preventer AutoFill Combination 573009A Pre-adjustable automatic filling unit with backflow preventer

  • Watts Backflow Preventer - 9DS-1/2 = v4486

    Watts Boiler Backflow Preventers

    Use Watts Backflow Preventers to keep Boiler Water (with or without antifreeze) from entering domestic (Potable) water supply.

  • Cash Acme Back Flow Preventer/Pressure Reducing Valve Combination - 23029-0014 = v7899

    Cash Acme Combo Fill & Backflow

    Cash Acme BFAC accurately reduces system pressure down to 14 psi while preventing the back-siphonage of contaminated water into the potable water supply

  • Cash Acme Back Flow Preventer - BFP 21574-0000 = v7897

    Cash Acme Backflow Preventers

    Cash Acme Backflow Preventers Prevents backflow of contaminated water into potable water supply lines. Ideal for boiler feed lines

  • Watts Combination Backflow Preventer/Fill Valve - B911S (0386462) = v7900

    Watts Combo Fill & Backflow

    Used on boiler supply feed lines to provide make-up water to the boiler. Prevents backflow when supply pressure falls below system pressure.

  • Cash Acme Boiler Feed Valve - A-89C - 22064-0014 = v14476

    Cash Acme Boiler Feed Valves

    Cash Acme Boiler Feed Valve A-89C - 22064-0014 to supply water to heating systems when low

  • Watts Boiler Backflow Preventers and Combo BackFlow Preventers/Fill Valves = v266

    Watts Backflow AutoFill Combo

    Watts Boiler Feed Valves supply water to heating systems when low