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engineer. If an existing aerial pipe is to be replaced and exact finished length <br /> Ikw cannot be determined without lifting the steel section into place for measurement, <br /> the flanged steel section length will be estimated and assembled leaving it about <br /> 3 feet short of the total span length. A 5 to 10-foot section of flanged ductile iron <br /> pipe shall be secured to the end of the steel flange for measurement and cutting <br /> to fit. The plain end of the ductile iron pipe will be secured to a mechanical joint <br /> fitting using a gasket and mega lug. <br /> C. Pipe shall be seamless carbon steel pipe ASTM A53, Grade B, Schedule 80 with <br /> a circumferential weld meeting the requirements of AWWA Standard C200 "Steel <br /> Water Pipe 6" and Larger". Steel Pipe and Flanges (welded to the pipe by the <br /> manufacturer) are to be welded by a certified welder. Flanges are to be AWWA <br /> C207-07, 150# E-Ring Plate, FF-SO. In all cases, the minimum wall thickness <br /> of pipe shall be Y2 inch. <br /> 12.04 LINING AND COATING <br /> A. All coatings and linings shall be factory installed. <br /> B. Lining: All DI water pipe shall be cement mortar lined as described in Section 1 <br /> and sewer pipe shall be epoxy lined as described in Section 4. All linings shall be <br /> factory installed. Steel pipe shall be prepared for linings/coatings per the <br /> 4W manufacturer's recommendations. Lining shall be Tnemec Pota-Pox N140 or <br /> V140 or approved equal. <br /> C. Coating: Ductile iron pipe shall be coated according to specifications described in <br /> Sections 1 and 4. Steel pipe shall be polyurethane coating, or approved equal, <br /> per AMA C222 and paint manufacturer's recommendations. Coating repairs <br /> shall be per AWWA C222 and paint manufacturer's recommendations. <br /> D. Ferrous Nonferrous Metals, and Galvanized Metals: Exterior Non-submerged: <br /> 1. Surface Preparation: <br /> Outside surface of pipe to be cleaned/blasted per <br /> paint manufacturer's recommendation. <br /> 2. Product and Manufacturer-Provide one of the following: <br /> a. Tnemec: <br /> 1) Shop Primer: 66-1211 Epoxy — 1 or 2 coats, 3.0-5.0 dry <br /> mils per coat. <br /> 12-3 <br />