The 3-inch PVC wafer check valve from Asahi/America, installed on the discharge side of pumps, is designed to prevent back-flow flooding. The valve’s body, disc and stopper assembly are machined from solid PVC plate stock that conforms to ASTM D1784 cell classification 12454A. The check valve is available in 3- through 12-inch PVC with EPDM seals and no spring. All 3- through 8-inch check valves operate at a maximum pressure of 150 psi (10- and 12-inch at 90 psi) and up to 120 degrees F. 800/343-3618;


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