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i 4. Sleeve type couplings shall be used with all buried piping. The couplings <br />shall be of steel and shall be Dresser Style 38, Smith Blair Style413, <br />t Baker Allsleel, or equal. The coupling shall he provided will' hot <br />E dipped galvanized steel bolts and nuts unless indicated otherwise. <br />5. All couplings shall be furnished will' the pipe stop removed. <br />j 6. Couplings shall be provided with gaskets of a composition suitable for <br />exposure to the liquid within a pipe. <br />t 7. If the Contractor decides to use victaulic couplings in lieu of flanged <br />joints, lie shall be responsible for supplying supports For the joints. <br />TAPPING SLEEVE'S AND VALVES <br />A. Tapping sleeves shall be long body, mechanical joint type with flanged outlet, <br />ductile iron construction, split in two sections and designed for assembly <br />' around the main without halting service. The sleeve shall be suitable for use <br />I with the type and O.D. of pipe being tapped. <br />I B. Tapping valves ends shall be a standard flange (for bolting to the sleeve) by <br />` mechanical joint. Valves shall have oversized seat rings to permit entry of the <br />tapping machine cutters and, except as otherwise specified, shall be similar in <br />construction and operation to AWWA C509 resilient seated ate valves. <br />apping valves and sleeves shall be cold wirer pressure rated at 200 psi minimum <br />t' for valve sizes up to 12 inches or less and 150 psi minimum for valve size over <br />1 inches. Tapping sleeves and valves shall be "Mueller" or approved equal. <br />w <br />