F-968-B Cast Iron, Class 250, Check Valve, Swing, Flanged

Iron, Horizontal Swing, Class 250, Bolted Bonnet

Material Description - F968B FLG CHECK CAST IRON
 Valve Type 21/IRON
 NIBCO Bronze and Iron Valves

The NIBCO® cast iron horizontal swing check valve is designed with renewable seat and disc. The swing check valve prevents backflow by automatically closing when fluid reverses direction. The check valve is Class 250 flanged iron body, bronze mounted trim (IBBM). It is recommended for commercial and industrial steam, water, oil and gas services.

The NIBCO® cast iron check valve features flanged end connections for easy installation. It is equipped with a bolted bonnet for maintenance accessibility. The swing check valve includes a renewable cast bronze seat and disc. 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® valves are backed by the NIBCO 5-year 125% limited warranty.

250 psi/17.2 bar saturated steam to 406°F/207°C
500 psi/34.5 bar non-shock cold working pressure
Bolted bonnet
Renewable bronze seat and disc
Class 250 flanged end connections
Conforms to MSS SP-71 Type 1
Approved by the New York City BSA 143-69-SA at 350 psi non-shock cold water
Size range 2½” to 6”