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The AWWA C504 concentric double flange butterfly valve from Laux Valve is engineered specifically for municipal waterworks and industrial water applications. Built to the stringent AWWA C504 standard with a Class 125 pressure rating, this valve features a vulcanized rubber seat bonded directly to the ductile iron body and flat face flanges per ASME B16.1 Class 125 /250lb for direct mating to cast iron flanged fittings and valves.
The vulcanized seat design eliminates the risk of seat movement, extrusion, or blowout under pressure, providing reliable bubble-tight shut-off over decades of service. The concentric design centers the disc on the valve bore axis, delivering consistent sealing with lower operating torque.
