• Class 125 flanged end connections
• 175 psi/12.1 bar non-shock water working pressure (WWP)
• Iron body, bronze mounted trim (IBBM)
• Bolted bonnet
• Renewable seat and disc
• All sizes tapped 3/4'' at location ''C'' for ball drip assembly
• Flanged end connections
• Use in U.S. drinking water applications is prohibited after January 3, 2014
• Conforms to MSS SP-71
• Listed by Underwriters Laboratories of U.S. and Canada (UL/ULC)
• FM Approved
• Approved by New York City BSA 143-69-SA

The cast iron check valve features flanged end connections for easy installation. The swing check valve includes a renewable rubber disc and bronze seat ring. Swing checks may be installed in horizontal positions (or vertical with flow moving up). The check valve is recommended for automatic fire sprinkler systems and is UL/ULC listed and FM approved. 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, fire protection and industrial applications. NIBCO check valves are backed by the NIBCO 5-year 125 Percent limited warranty.