Specifications include, but are not limited to:Polyvinyl chloride (PVC) plastic pipe shall be manufactured by Diamond Plastics Incorporation, or approved equal, and used for water main construction. The pipe shall meet or exceed the requirements of AWWA C 900 latest edition. It shall have outside diameters equal to cast iron pipe with a standard dimension ratio (SDR) of 18. The pipe shall be rated for a working pressure of at least 150 psi plus a surge allowance of at least 35 psi and shall have a minimum ultimate hydrostatic strength of 600 psi. Each pipe section including the bell or coupling shall be subjected to a hydrostatic test of not less than 500 psi for at least 10 seconds. Pipe shall be tested in accordance with conditions specified in ASTM D 618. Any pipe that leaks or is unusable to withstand the test pressure shall be rejected. The test shall be conducted at the factory and certification stating that the test has been conducted as specified and the pipe meets all conditions of this specifications shall be submitted upon request. Polyvinyl chloride (PVC) pipe shall be manufactured with an elastomeric gasket joint conforming to ASTM D-3139. Pipe ends shall be beveled. Pipe shall be manufactured in lengths not to exceed 20 feet. Ductile iron pipe shall be manufactured by McWane Ductile, or approved equal, in accordance with ANSI/AWWA C151/A21.51, latest edition, and shall be thickness Class 50. All fittings for water main pipe shall be made of cast iron in accordance with ANSI Standard A21.10. Fittings shall be class 250 and provided with mechanical joint ends furnished in accordance with ANSI Specification A21.11. Ductile iron fittings will be an acceptable alternate. Ductile iron fittings shall be mechanical joint with a 350 psi pressure rating conforming to ANSI Standard S21.53 and A21.11. Inside of fittings shall be double cement lined with bituminous seal coat in accordance with ANSI 21.4. Outside of fittings shall also be bituminous seal coated. Must be domestic made
