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SECTION 02502 <br /> MISCELLANEOUS APPURTENANCES <br /> 1 . GENERAL <br /> A . All of the types of valves and appurtenances shall be products of well <br /> established reputable firms who are fully experienced and qualified in the <br /> manufacture of the particular equipment to be furnished . The equipment shall be <br /> designed, constructed and installed in accordance with the best practices and <br /> methods and shall comply with these specifications as applicable . <br /> B . All valves and appurtenances shall have the name of the maker and the working <br /> pressure for which they are designed cast in raised letters upon some appropriate part <br /> of the body . <br /> 2 . WATER SERVICE TAPS <br /> A . Service saddles with fusion bonded plastic coated, ductile iron bodies having <br /> stainless steel double straps and elastomeric gasket shall be used for all taps . <br /> Corporation stops shall be brass with IPS inlet thread and compression outlet <br /> for polyethylene tubing, and shall conform to AWWA C800 , <br /> 3 . CORPORATION COCKS <br /> A. Corporation cocks for connections to ductile iron or PVC piping shall be all brass or <br /> bronze suitable for 150 psi operating pressure, shall be iron pipe thread design, <br /> and similar to Mueller Co . H- 10046 , or equal , and shall be of the same size water <br /> service tubing as shown and/or noted on the Drawings . <br /> 4. FLEXIBLE COUPLINGS <br /> A . Flexible couplings shall be either the split type or the sleeve type as shown on the <br /> Drawings or as further specified hereafter. <br /> 1 . Split type coupling shall be used with all interior piping and with exterior <br /> piping as noted on the Drawings . The couplings shall be mechanical <br /> type for radius groove piping . The couplings shall mechanically <br /> engage and lock grooved pipe ends in a positive couple and allow for angular <br /> deflection and contraction and expansion. <br /> 2 . Couplings shall consist of malleable iron, ASTM Specification A47 , Grade <br /> 32510 housing clamps in two or more parts , a single chlorinated butyl <br /> composition sealing gasket with a " C " shaped cross-section and internal <br /> sealing lips projecting diagonally inward , and two or more oval track head type <br /> bolts with hexagonal heavy nuts conforming to ASTM Specification A183 and <br /> A194 to assemble the housing clamps . Bolts and nuts shall be hot dipped <br /> galvanized after fabrication. <br /> C : \ Down1oad \ techspec - 02502 . d0c SC502 - 1 <br />