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    Check valves prevent backflow by automatically closing when fluid reverses direction. The check valve is recommended for commercial and industrial water applications only. Wafer 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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    Check Valve - Lead-Free*, Iron, Fire Protection, Wafer Style, KW-900-W-LF

    W-920-W-LF - Check Valve - Lead-Free*, Class 125, Wafer Style, Buna-N Seat
    Check Valve - Lead-Free*, Iron, Fire Protection, Wafer Style, KW-900-W-LF

    W-920-W-LF - Check Valve - Lead-Free*, Class 125, Wafer Style, Buna-N Seat
    Check Valve - Lead-Free*, Iron, Fire Protection, Wafer Style, KW-900-W-LF

    W-920-W-LF - Check Valve - Lead-Free*, Class 125, Wafer Style, Buna-N Seat
    Check Valve - Lead-Free*, Iron, Fire Protection, Wafer Style, KW-900-W-LF

    W-920-W-LF - Check Valve - Lead-Free*, Class 125, Wafer Style, Buna-N Seat
    Check Valve - Lead-Free*, Iron, Fire Protection, Wafer Style, KW-900-W-LF

    W-920-W-LF - Check Valve - Lead-Free*, Class 125, Wafer Style, Buna-N Seat
    UPC Code N/A 039923327192 N/A 039923327215 N/A 039923327222 N/A 039923327239 N/A 039923327253
    Type N/A Check Valve
    Valve Size N/A 2 N/A 2 1/2 N/A 3 N/A 4 N/A 5
    Connection Type N/A W -- Wafer
    Material N/A Cast Iron
    Cv Coefficient N/A 76 N/A 161 N/A 224 N/A 400 N/A 648
    Description N/A W920W-LF 2 TWIN DISC WAFER CK N/A W920W-LF 2 1/2 TWIN DISC WAFER CK N/A W920W-LF 3 TWIN DISC WAFER CK N/A W920W-LF 4 TWIN DISC WAFER CK N/A W920W-LF 5 TWIN DISC WAFER CK
    eClass Classification N/A Inline Lead-Free* Iron Check Valves
    Turns/Operation N/A Non-Manual
    Weight N/A 3.890 lb N/A 4.000 lb N/A 6.000 lb N/A 8.000 lb N/A 13.000 lb