Iron Swing Check Valves
Series 411 Swing Check Valves are UL Listed and FM approved in sizes 2-1/2 to 10 in. (65 to 250mm). Valves feature a full port, flanged cast iron body with a black epoxy coating on all external surfaces and a Buna-N resilient disc seat designed for use on fire mains and sprinkler systems. The valve operates automatically by opening on a hinge arm with flow and closing when flow stops or is reversed.
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