Copied KG-900-W-LF 2-1/2" Double-Door Check Valve - Lead-Free
KG-900-W-LF 2-1/2" Double-Door Check Valve - Lead-Free
NIBCO, NLM25XE, KG-900-W-LF 2-1/2" Underwriters Laboratories & Factory Mutual Double-Door Twin Disc Fire Protection Iron Grooved Silent Check Valve - Lead-FreeThe twin disc check valve is grooved end style. Grooved silent check valves may be installed in horizontal positions (or vertical with flow moving up). This valve is listed by Underwriters Laboratories of the US and Canada (UL/ULC) and FM Approved. Choose NIBCO® check valves, for the most specified, versatile and economical valve option in commercial, mechanical, fire protection and industrial applications. Twin Disc Check Valves can be installed horizontally or in the vertical position with flow up. For horizontal flow applications, the valve must be installed with disc hinge pin in the vertical position to insure proper operation. On pump discharge, the preferred check valves are in-line spring loaded.Features:Valve pressure rating 250 psi/17.2 bar non-shock cold working pressureSpring actuatedRenewable discsGrooved end connectionsLead-free*Conforms to ANSI/AWWA C606 for steel IPS pipeListed by Underwriters Laboratories of U.S. and Canada (UL/ULC)FM approvedNSF/ANSI 61 and NSF/ANSI 372These are not to be used as steam valvesValves are not to be used near a reciprocating air compressorInstall 5 pipe diameters minimum downstream from pump discharge or elbows to avoid flow turbulence. Flow straighteners may be required in extreme cases.
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