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Section 15072 <br /> HIGH DENSITY POLYETHYLENE PIPE <br /> PART 2 - PRODUCTS <br /> 2.01 GENERAL <br /> HDPE materials, pipe and fittings shall be manufactured, inspected, sampled and tested in <br /> accordance with the requirements of AWWA C906 and this section. In case of conflict <br /> between the requirements of this section and AWWA C906, the requirements of this section <br /> shall prevail. <br /> 2.02 MATERIALS <br /> HDPE piping components shall be manufactured from materials that meet or exceed the <br /> requirements of the Plastic Piping Institute designation PE3408 and that conform to the <br /> requirements of ASTM D3350 for a cell classification of PE345434C. <br /> Mechanical transition couplings or flange adapters shall be ductile iron, and coated per <br /> Section 09800, PAINTING AND SPECIAL COATING SYSTEMS. <br /> Bolts and nuts for buried mechanical joining components such as flanges shall be Type 316 <br /> stainless steel. <br /> 2.03 PIPE <br /> Pipe shall have the nominal dimensions shown with an IPS outside diameter basis and the <br /> dimensions and tolerances specified in AWWA C906. <br /> A. Characteristics <br /> The piping system shall conform with the following: <br /> Dimension ration (DR) 7.3 <br /> Pressure class in accordance with AWWA C906 254 psig <br /> Maximum deflection in installed condition, <br /> percent of the average outside diameter of the <br /> pipe 6.5 <br /> 2.04 FITTINGS <br /> Fittings shall conform to the applicable requirements of AWWA C906 for the joining <br /> methods specified in Paragraph 3.02B, Joining. Fitting pressure rating shall match the pipe <br /> pressure rating. <br /> Walnut Grove Sewer Project (Conformed) 15072-3 SAO 160401 <br /> March 2008 n:vsa0160401vspecsvwo conformvdiv 15v15072.doc <br />