USED MUELLER 721 80-721-04

THE MUELLER 721 80-721-04 IS AN 8-INCH CONTROL CHECK VALVE DESIGNED FOR AUTOMATIC FLOW MANAGEMENT AND BACKFLOW PREVENTION. THIS RESILIENT-SEATED VALVE FEATURES A DUCTILE IRON BODY, FUSION-BONDED EPOXY COATED TO AWWA C550 SPECIFICATIONS FOR CORROSION RESISTANCE. ITS DESIGN INCORPORATES AN EPDM OR EQUIVALENT RESILIENT DISC, ENSURING BUBBLE-TIGHT SHUT-OFF AND CONTRIBUTING TO LOW HEAD LOSS. THE VALVE IS ENGINEERED FOR CONTROLLED OPENING AND CLOSING, EFFECTIVELY MITIGATING WATER HAMMER IN PIPELINE SYSTEMS. IT IS RATED FOR A MAXIMUM WORKING PRESSURE OF 250 PSI (17.2 BAR) AND HYDROSTATICALLY TESTED TO 500 PSI (34.5 BAR). END CONNECTIONS ARE FLANGED, ADHERING TO ANSI B16.1 CLASS 125 OR ANSI B16.42 CLASS 150 STANDARDS. THIS MODEL COMPLIES WITH AWWA C508 REQUIREMENTS.