• Check Valve - Lead-Free*, Iron, Fire Protection, Wafer Style, KW-900-W-LF


    Check Valve - Lead-Free*, Iron, Fire Protection, Wafer Style
    The NIBCO® lead-free* ductile iron, wafer style check valve is spring actuated which reduces noise for quiet operation. Check valves prevent backflow by automatically closing when fluid reverses direction. The check valve is recommended for automatic fire sprinkler applications where space is a premium.
    Build Custom Submittal View Submittal Sheet

    • Valve pressure rating 250 psi/17.2 bar non-shock cold working pressure
    • Spring actuated
    • Renewable discs
    • Rubber seat
    • Double door
    • To be installed between standard Class 125 flanges
    • Wafer connection
    • Lead-free*
    • Listed by Underwriters Laboratories of U.S. and Canada (UL/ULC)
    • FM approved
    • NSF/ANSI 61 and NSF/ANSI 372
    • Size range 2-1/2" to 16"
    SizeDescriptionUPCNIBCO #BIM/CADProp 65
    2 1/2KW900W-LF 21/2 WAFER UL/FM DBL DISC CK039923327598NLM15XEView 2DLead
    3KW900W-LF 3 WAFER UL/FM DBL DISC CK039923327604NLM15XFView 2DLead
    4KW900W-LF 4 WAFER UL/FM DBL DISC CK039923327611NLM15XHView 2DLead
    5KW900W-LF 5 WAFER UL/FM DBL DISC CK039923327628NLM15XJView 2DLead
    6KW900W-LF 6 WAFER UL/FM DBL DISC CK039923327635NLM15XKView 2DLead
    8KW900W-LF 8 WAFER UL/FM DBL DISC CK039923327642NLM15XLView 2DLead
    10KW900W-LF 10 WAFER UL/FM DBL DISC CK039923327659NLM15XMView 2DLead
    12KW900W-LF 12 WAFER UL/FM DBL DISC CK039923327666NLM15XNView 2DLead
    14KW900W-LF 14 WAFER FM DBL DISC CK039923327673NLM15XTView 2DLead
    16KW900W-LF 16 WAFER FM DBL DISC CK039923702371NLM150UView 2DLead
    WarningWARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

    NIBCO® Pressure Rated Valves Warranty

    NIBCO INC. 125% LIMITED WARRANTY
    Applicable to NIBCO INC. Pressure Rated Metal Valves

    NIBCO INC. warrants each NIBCO® pressure rated metal valve to be free from defects in materials and workmanship under normal use and service for a period of five (5) years from date put into service.

    In the event any defect occurs which the owner believes is covered by this warranty, the owner should immediately contact NIBCO Technical Services, either in writing or by telephone at 1.888.446.4226 or 1.574.295.3000. The owner will be instructed to return said product, at the owner’s expense, to NIBCO INC., or an authorized representative for inspection. In the event said inspection discloses to the satisfaction of NIBCO INC. that said valve is defective, it will be replaced at the expense of NIBCO INC.. Replacements shall be shipped free of charge to the owner. In the event of the replacement of any valve, NIBCO INC. shall further pay the owner the greater of twenty-five (25%) percent of the price of the valve according to the published suggested list price schedule of NIBCO INC. in effect at the time of purchase, or ten ($10.00) dollars, to apply on the cost of the installation of said replacement valve.

    TO THE EXTENT PERMITTED BY LAW, THIS WARRANTY SPECIFICALLY EXCLUDES INCIDENTAL AND CONSEQUENTIAL DAMAGES OF EVERY TYPE AND DESCRIPTION RESULTING FROM ANY CLAIMED DEFECT IN MATERIAL OR WORKMANSHIP, INCLUDING BUT NOT LIMITED TO, PERSONAL INJURIES AND PROPERTY DAMAGES.

    Some states or countries do not allow the exclusion or limitation of incidental or consequential damages so these limitations may not apply to you. TO THE EXTENT PERMITTED BY LAW, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION.

    This warranty gives you specific legal rights, and you may also have other rights which vary from state to state and country to country.

    To the best of our knowledge, the information contained in this publication is accurate. However, NIBCO does not assume any liability whatsoever for the accuracy or completeness of such information. Final determinations of the suitability of any information or product for the use to be contemplated is the sole responsibility of the user. The manner of that use, and whether there is any infringement of patents, is also the sole responsibility of the user.

    Pressure Rated Valves

    State quantity, figure number and size for each valve or fitting you wish to order. See individual catalog pages for specific product designations.

    HOW MANY TO ORDER
    NIBCO® valves and fittings are decimal packed for your convenience in handling, shipping and stock-keeping. Number in master carton varies with item.

    POLICY ON RETURNS TO FACTORY

    No NIBCO® valves and fittings are to be returned without prior written agreement. Transportation must be prepaid. A 20% charge will be made to cover cost of rehandling and reinspection.  

    TECHNICAL ASSISTANCE

    Engineers, contractors, wholesalers or manufacturers may obtain special or technical assistance from any factory representative of NIBCO. Write, fax or phone.

    NIBCO INC.
    World Headquarters
    1516 Middlebury Street
    Elkhart, IN 46516-4740
    USA

    PH: 1.574.295.3000 or 1.888.446.4226
    FAX: 1.574.295.3307 or 1.888.336.4226