Specifications include, but are not limited to: Mechanical Joint Resilient seated gate valves. Valves shall conform to the latest revision of AWWA resilient seated gate valve standard C-515. Domestic manufacture only. Min. design working pressure shall be 200 p.s.i. for 2”-12” sizes. Valves shall have mechanical joint ends and be furnished complete with all M.J. accessories. Valves shall be non-rising stem type, opening by turning left and provided with a 2” square operating nut. Operating stem shall be manganese bronze only. The internal diameter of the water passageway shall, at a min. be as large as the connecting pipe inside diameter. All internal parts shall be accessible without removing the main body from the pressure line. All cast iron surfaces of the body and bonnet shall be completely coated with a corrosion resistant coating. Approved Manufacturers**: American Flow Control Series, Kennedy Valve, M & H Valve, Mueller, US Pipe. Circle Manufacturer proposed. Sizes as follows: 3” 4” 6” 8” 10” 12”; Resilient Seated Tapping Valves. Valves shall conform to the latest revision of AWWA resilient seated gate valve standard C-515. Valves shall be of domestic manufacture only. Minimum design working pressure shall be 200 p.s.i. for 2” - 12” sizes. Valves shall be flanged on one end for bolted connection to throat flange of tapping sleeve. Centering rings shall be provided on valve flange for mating with tapping sleeve flange and be industry standard through 12”. Valves shall be furnished complete with all mechanical joint and flange accessories. Valves shall be non-rising stem type, opening by turning left and provided with a 2” square operating nut. Valve operating stem shall be manganese bronze only. All internal parts shall be accessible without removing the main body from the pressure line. All cast iron surfaces of the body and bonnet shall be completely coated with a corrosion resistant coating. Approved Manufacturers**:American Flow Control, Kennedy Valve, M & H Valve, Mueller, Stockham, U. S. Pipe. Circle Manufacturer proposed; 2” SCREW TYPE RESILIENT SEATED Gate Valves. AWWA C-515, valve operating stem shall be non rising and manganese bronze only. All cast iron surfaces of the body and bonnet shall be completely coated with a corrosion resistant coating. 2" square wrench nut for operation of the valve. Minimum design working water pressure of 200 psi for valves. Valves shall be threaded connection. Bonnet or body markings: Manufacturer's name, year of casting, size, pressure rating, and OPEN with direction. Open by counter-clockwise operation. Valves shall be of domestic manufacture only. Approved Manufacturer’s**: Kennedy Valve, M&H Valve, or Mueller Valve, Stockham Valve and U.S. Pipe. Circle Manufacturer proposed.
