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- The NIBCO® lead-free cast 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. The check valve is wafer style to fit between standard flanges. The twin disc check valve includes renewable bronze discs. 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.
NIBCO® Fire Check Valve, Lead Free Wafer Style, Series: KW-900-W-LF, 4 in Nominal, 250 psi WWP Maximum, 125 lb Pressure Class, Specifications Met: ASTM A536, ASTM B584, ASTM A313, ASTM A276, ASTM A240, FM Approved, NSF/ANSI 61, NSF/ANSI 372, cULus Listed, Media: Water, Spring Actuated Actuator, 2.63 in Inlet to Outlet Length, 5/8 in Top to Inlet Center, Cast Iron Body, Bronze Disc Trim, Rubber Softgoods, Domestic
- Lead-free cast 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
- Check valve is wafer style to fit between standard flanges
- The twin disc check valve includes renewable bronze discs, wafer checks may be installed in horizontal positions
- Double door
- Rubber seat
- To be installed between standard class 125 flanges
- Body MaterialCast IronDomestic / ImportDomesticMaximum Pressure250 psi WWPNominal Size4 inActuator TypeSpring ActuatedInlet to Outlet Length2.63ManufacturerNIBCO Inc.Manufacturer #NLM15XHMediaWaterPressure Class125 LbSeriesKW-900-W-LFSoftgoods MaterialRubberTop to Inlet Center5/8Trim MaterialBronze DiscTypeWafer Style