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    • Check Valve - Class 150, Ductile Iron, F-938-31
    With its ductility, the valve displays higher physical properties than standard grey cast iron. Swing checks may be installed in horizontal positions (or vertical with flow moving up). Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO® check valves for the most specified, versatile and economical valve option in commercial, mechanical and industrial applications. NIBCO® check valves are backed by the NIBCO 5-year 125% limited warranty.
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    Material Number

    UPC Code

    Valve Size

    Connection Type

    Description

    Turns/Operation

    N/A 039923705174 N/A 2 N/A F -- Flanged N/A F93831 2 FLG CK DI N/A Non-Manual
    N/A 039923705181 N/A 2 1/2 N/A F -- Flanged N/A F93831 2 1/2 FLG CK DI N/A Non-Manual
    N/A 039923705198 N/A 3 N/A F -- Flanged N/A F93831 3 FLG CK DI N/A Non-Manual
    N/A 039923705204 N/A 4 N/A F -- Flanged N/A F93831 4 FLG CK DI N/A Non-Manual
    N/A 039923705211 N/A 5 N/A F -- Flanged N/A F93831 5 FLG CK DI N/A Non-Manual
    N/A 039923705228 N/A 6 N/A F -- Flanged N/A F93831 6 FLG CK DI N/A Non-Manual
    N/A 039923705235 N/A 8 N/A F -- Flanged N/A F93831 8 FLG CK DI N/A Non-Manual
    N/A 039923705242 N/A 10 N/A F -- Flanged N/A F93831 10 FLG CK DI N/A Non-Manual
    N/A 039923705259 N/A 12 N/A F -- Flanged N/A F93831 12 FLG CK DI N/A Non-Manual
    N/A 039923001320 N/A 2 N/A F -- Flanged N/A F93831FF 2 CHECK W/FF FLG DI N/A Non-Manual
    N/A 039923001337 N/A 3 N/A F -- Flanged N/A F93831FF 3 CHECK W/FF FLG DI N/A Non-Manual
    N/A 039923830357 N/A 4 N/A F -- Flanged N/A F93831FF 4 CHECK W/FF FLG DI N/A Non-Manual
    N/A 039923830371 N/A 6 N/A F -- Flanged N/A F93831FF 6 CHECK W/FF FLG DI N/A Non-Manual
    N/A 039923830388 N/A 8 N/A F -- Flanged N/A F93831FF 8 CHECK W/FF FLG DI N/A Non-Manual
    N/A 039923830395 N/A 10 N/A F -- Flanged N/A F93831FF 10 CHECK W/FF FLG DI N/A Non-Manual
    N/A 039923830401 N/A 12 N/A F -- Flanged N/A F93831FF 12 CHECK W/FF FLG DI N/A Non-Manual
    N/A 039923705099 N/A 3 N/A F -- Flanged N/A F93831LW 3 FLG CK W/LEV & WT DI N/A Non-Manual
    N/A 039923705143 N/A 10 N/A F -- Flanged N/A F93831LW 10 FLG CK W/LEV&WT D I N/A Non-Manual
    N/A 039923705006 N/A 3 N/A F -- Flanged N/A F93831LS 3 FLG CK W/LEV & SPR DI N/A Non-Manual
    N/A 039923705013 N/A 4 N/A F -- Flanged N/A F93831LS 4 FLG CK W/LEV&SPR DI N/A Non-Manual
    N/A 039923705020 N/A 6 N/A F -- Flanged N/A F93831LS 6 FLG CK W/LEV & SPRING DI N/A Non-Manual
    N/A 039923406354 N/A 5 N/A F -- Flanged N/A F93831FF 5 FLG CK W/FF FLG DI N/A Non-Manual
    N/A 039923336651 N/A 4 N/A F -- Flanged N/A F93831LW 4 FLG CK W/LEV&WT D I N/A Non-Manual
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