Skip Navigation Links
  • Fire Protection Check Valves

     Iron UL/FM check valves are for backflow prevention. Typical service is for in-line fire protection backflow prevention. As a standard, NIBCO iron fire protection valves are made to the highest quality standards in the industry.

  • Sort by:

    none

    Check Valve – Iron, Fire Protection, Horizontal Swing

    F-908-W

    • Class 125 flanged end connections, 175 psi/12.1 bar non-shock water working pressure (WWP), Iron body, bronze mounted trim (IBBM), Bolted bonnet, Renewable seat and disc, All sizes tapped ¾” at location “C” for ball drip assembly, Flanged end connections, Use in U.S. drinking water applications is prohibited after January 3, 2014
    • Conforms to MSS SP-71, Listed by Underwriters Laboratories of US and Canada (UL/ULC), FM Approved, Approved by New York City BSA 143-69-SA
    • Size range 2½” to 12”


    none

    Check Valve – Iron, Fire Protection, Reliable “G” Series

    G-917-W

    • 250 psi/17.2 bar non-shock water working pressure (WWP), Spring actuated, Renewable disc, Drilled and tapped for ball drip outlet, Bronze seat, Stainless steel disc, EPDM seal, Grooved end connections, Use in U.S. drinking water applications is prohibited after January 3, 2014
    • Conforms to ANSI/AWWA C606 for steel IPS pipe, Listed by Underwriters Laboratories of US and Canada (UL/ULC), FM Approved, Approved by New York City MEA 258-93-E
    • Size range 2½” to 6”


    none

    Silent Check Valve – Iron Grooved, Fire Protection, Twin Disc

    KG-900-W

    • 250 psi/17.2 bar non-shock water working pressure (WWP), Spring actuated, Renewable disc, Grooved end connections, Use in U.S. drinking water applications is prohibited after January 3, 2014
    • Conforms to ANSI/AWWA C606 for steel IPS pipe, Listed by Underwriters Laboratories of US and Canada (UL/ULC), FM Approved
    • Size range 2½” to 12”


    none

    Check Valve – Iron, Fire Protection, Grooved

    KG-900-W-350

    • 350 psi/24.1 bar non-shock water working pressure (WWP) UL, Spring actuated, Bronze disc, Renewable disc, Grooved end connections, Use in U.S. drinking water applications is prohibited after January 3, 2014
    • Conforms to ANSI/AWWA C606 for steel IPS pipe, Listed by Underwriters Laboratories of US and Canada (UL/ULC)
    • Size range 2½” to 12”


    none

    Check Valve – Bronze, Fire Protection, Buna-N

    KT-403-W

    • 200 psi/13.8 bar non-shock water working pressure (WWP), Y-pattern, Renewable disc, Regrindable seat, Class 125 threaded end connections, Use in U.S. drinking water applications is prohibited after January 3, 2014
    • Conforms to MSS SP-80
    • Size range ½" to 2"


    none

    Check Valve – Iron, Fire Protection, Wafer Style

    KW-900-W

    • 250 psi/17.2 bar non-shock water working pressure (WWP), Spring actuated, Renewable disc, Rubber seat, Double door, To be installed between standard Class 125 flanges, Wafer connection, Use in U.S. drinking water applications is prohibited after January 3, 2014
    • Listed by Underwriters Laboratories of US and Canada (UL/ULC), FM Approved
    • Size range 2½” to 16”


  • 5 year 125% warranty