Description
The check valve is installed on the discharge side of the DuraQuench system to prevent the reversal of water flow back into the pump skid. In the fully‐open position the clapper is eld tightly against the valve body, out of the flow stream, toprovide maximum flow area and prevention of clapper flutter.
The clapper design produces quick, non‐slam closure before flow reversal can occur, while meeting FM requirements for an anti‐water hammer valve rating. Each valve is hydrostatically test for leak tightness to 500 psi (34.5 bar).