Awwa C516-21 Large-Diameter Rubber-Seated Butterfly Valves, Sizes 78 In. (2,000 Mm) And Larger

The purpose of this standard is to provide the minimum requirements for large-diameter flanged rubber-seated butterfly valve assemblies, suitable for freshwater and reclaimed water service. The standard can be referenced in contract documents for large-diameter rubber-seated butterfly valves, which are described by the scope as defined above.