A. Copper Tube: Copper tubing shall be Type K meeting the requirements of Federal Specification WWT 7996 and conforming to ASTM B-75, B-88 and B-68 as they apply to Type K Copper Tubing. B. Ductile Iron Pipe (4-inch to 16-inch): Ductile iron pipe used for exterior piping shall be manufactured in accordance with the latest revision of AWWA/ANSI C151/A21.51. Ductile Iron pipe shall be Class 52, centrifugally cast, double cement lined in accordance with AWWA/ANSI C104/A21.4, push-on joint or mechanical joint type, unless otherwise specified on the Drawings. Ductile iron pipe shall be supplied in 18-20 foot lengths with factory applied bituminous coatings in accordance with AWWA C151. C. PVC Pipe and Fittings: Polyvinyl chloride (PVC) pipe and fittings shall be blue or white unplasticized PVC plastic pressure pipe with integral bell and spigot joints for the conveyance of water. This pipe shall meet the requirements of AWWA Standard C900, “Polyvinyl Chloride (PVC) Water Distribution Pipe” and shall be manufactured by North American Specialty Products, J-M Manufacturing Company, Harvel Plastics Inc., or equal. All pipe shall be suitable for use as pressure conduit. The bell shall consist of an integral wall section with a factory installed, solid cross-section elastomeric gasket, which meets the requirements of ASTM F477. The bell section shall be designed to be at least as hydrostatically strong as the pipe barrel and meet the requirements of AWWA C900. The joint design shall meet the requirements of ASTM D3139. Pipe shall be DR18, and pressure rating shall be a minimum of 235 pounds per square inch (PSI). All bolts, nuts, washers, and other fastening devices shall be designed for use in corrosive service environments. All fastening devices shall be Type 316 stainless steel and conform to ASTM F 593 and ASTM F 594 standards. All nuts and bolts shall be installed with an antiseize compound of molybdenum disulfite base. All PVC pipe must have 12-gauge tracer wire installed below the pipe and warning tape installed 1-foot above the pipe during installation.
