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Spence Strainers Announces FM Approved Check Valves

Walden, NY — Spence Strainers International has announced Factory Mutual (FM) approval of its Model 125WT, ASME Class 125, cast iron, double door check valves in 2- through 10-in. sizes.

The 125WT Series double door check valves prevent severe water hammer from the backflow of a pressure tank when automatic controls shut down a fire pump.

Spence also now offers ASME Class 125, 150, 300 and 600 double door check valves in cast iron, carbon steel, and stainless steel, in 2- through 24-in. sizes, for pressures to 1480 PSIG and temperatures to 600F. These double door wafer body check valves are compactly designed to fit between FF and RF flanges and are available with bronze or stainless steel disc with Buna-N, Viton or Metal seats.

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