AWWA C518-13 Dual-Disc, Swing-Check Valves for Waterworks Service (PDF)
SKU: STC_0077851-PDF
This standard establishes minimum requirements for dual-disc swing-check valves, 2-in. (50- mm) through 48-in. (1,200-mm) NPS for clean water having a pH range from 6 to 10 and a temperature range of 33°F to 125°F (0.6°C to 52°C).
Description
Major changes made to the standard in this revision include the following: valves used in potable water service shall be certified to NSF/ANSI 61; and, valves weighing more than 60 pounds (27.2) shall be furnished with a structural means to facilitate hoisting for service and installation.