W-920-W Check Valve Class 125, Wafer Style, Buna-N Seat

The NIBCO® cast iron wafer style check valve is spring actuated with Buna-N seat. The spring return reduces noise for quiet operation. The twin disc check valve is wafer style to fit between standard flanges. The check valve includes renewable bronze discs.

Check valves prevent backflow by automatically closing when fluid reverses direction. The check valve is recommended for commercial and industrial water applications only. 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.

Material Description - W920W TWIN DISC WAFER CK CI
 Valve Type 28/IRON SILENT CHECK
 NIBCO Bronze and Iron Valves

200 psi/13.8 bar non-shock cold working pressure
Max temperature 180°F/82°C
Resilient Buna-N seat molded to body
Renewable twin bronze discs
Spring actuated (1/2 psi cracking pressure)
To be installed between standard flat face flanges
Class 125 wafer end connections
Conforms to ANSI B16.1
Size range 2" to 12"