Specifications include, but are not limited to: Material Requirements – VALVES: − Gate valves (12” and smaller) shall meet AWWA C509-Latest Edition or AWWA C515-latest edition Gate Valve Specifications (valves 12-inches and smaller): − Resilient Wedge Gate Valves − Supplied with mechanical joints. − Supplied with conductive (no lead) gaskets − Open to the left − Non-rising stem − O-ring packing − 2-inch square operating nut Acceptable models (standard gate valves): − Kennedy – KS-FW 8571, KS-RW 7571 or equal − Mueller – A2360, A2361 or equal − Clow – F6100 Model 2638, 2639, 2640 or equal − AFC – Series 2500 or equal − AFC 2500 Ductile Iron Resilient Wedge Gate Valve with ALPHA Ends Or Engineer-Approved Equal Material Requirements – BUTTERFLY VALVES: − Butterfly Valves (16” and larger) shall meet the requirements of AWWA C504 - latest edition Butterfly Valve Specifications (valves 16-inches and larger valves): − Rubber Seated Butterfly Valves. − Open to the left.