AWWA C516-21 Large-Diameter Rubber-Seated Butterfly Valves, Sizes 78 In. (2,000 mm) and Larger
SKU: 43516-2021
This standard establishes minimum requirements for rubber-seated butterfly valve assemblies that are 78 in. (2,000 mm) and larger in diameter with flanged ends suitable for fresh and reclaimed water having a pH range from 6 to 12 and a temperature range from 33°F to 125°F (0.6°C to 52°C), and suitable for a maximum steady-state fluid working pressure of 250 psi (1,724 kPa [gauge]), a maximum steady-state differential pressure of 250 psi (1,724 kPa), and a maximum full-open fluid velocity of 16 ft/s (4.9 m/s) based on nominal valve size in classes as defined in Sec. 1.1.1 and Sec. 1.1.2.
Description
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. This standard can be referenced in contract documents for large-diameter rubber-seated butterfly valves, which are described by the scope as defined above.