Val-Matic Swing Check ValveVal-Matic’s AWWA Swing Check Valve is certified to NSF/ANSI 61 for Drinking Water System Components. The valve features a 100-percent unrestricted flow area, a full-access domed cover, and NSF/ANSI 61 fusion-bonded epoxy coating on the interior and exterior for corrosion resistance. The valves can be supplied with lever and weight, air cushion, or lever and spring for positive control in closing the disc. The valves are available in sizes 2 inches to 24 inches and are constructed of ductile iron in class 150 rates for 250 PSI working pressure. Sizes 30 inches to 48 inches are class 125 constructed of cast iron rated for 150 PSI, with ductile iron available as an option. They are designed and built in accordance with AWWA Standard C508 and are WQA Certified Lead-Free in accordance with NSF/ANSI 372. –