These new 125WT cast iron double-door check valves are available in sizes ranging from 2 inches to 10 inches. The valves prevent severe water hammer from the backflow of a pressure tank when automatic controls shut down a fire pump. This company also offers a number of other double-door check valves in cast iron, carbon steel and stainless steel in sizes ranging from 2 inches to 24 inches. The valves are ideal for liquid and gas service applications in the industrial process, power, water, waste water, pulp and paper industries.

Spence Strainers International,
150 Coldenham Road,
Walden, NY 12586;
(800) 398-2493;
fax (845) 778-1072;