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SECTION 4 – SANITARY <br />41 <br />4-2.1 (d) CONNECTION TO EXISTING PIPE <br />Connections to existing sewer pipe shall be made with “Fernco” shielded couplings, Series 1000 <br />or equal for connections less than or equal to twenty-four (24) inches. Connections greater than <br />twenty-four (24) inches a special detail shall be provided. <br />4-2.2 PIPES AND FITTINGS – PRESSURE FLOW <br />4-2.2 (a) PVC PIPE AND FITTINGS (TWELVE (12) INCHES AND SMALLER) <br /> PVC pipe shall conform to ASTM D-2241 for pressure rated pipe. The material shall conform to <br />ASTM D-1784. The joints shall conform to ASTM D-3139. The gaskets shall conform to ASTM <br />F-477. The minimum SDR rating shall be 21 (200 psi). <br />4-2.2 (b) PVC C900 AND C905 (UP TO FORTY-EIGHT (48) INCHES) <br />PVC pipe shall conform to AWWA C900 (for pipe size up to twelve (12) inches diameter) and <br />AWWA C905 (for pipe sizes larger than twelve (12) inches diameter). The material shall conform <br />to ASTM D-1784. The joints shall conform to ASTM D-3139. The gaskets shall conform to ASTM <br />F-477. The minimum SDR rating shall be 18 (235. psi). The pipe color shall be green. <br />4-2.2 (c) HDPE PIPE AND FITTINGS <br />1.) HDPE Pipe: Materials used for the manufacture of HDPE (High Density Polyethylene Pipe) <br />pipe and fittings shall be PE3408 high density polyethylene for sanitary sewer pipe meeting <br />cell classification PE345464C per ASTM D 3350; and shall be listed in the name of the pipe <br />and fitting Manufacturer in Plastics Pipe Institute (PPI) TR-4, Recommended Hydrostatic <br />Strengths and Design Stresses for Thermoplastic Pipe and Fittings Compounds, with a standard <br />grade HDB rating of 1600 psi at seventy-three (73) degrees Fahrenheit. The Manufacturer <br />shall certify the materials used to manufacture pipe and fittings meets these requirements. <br />Permanent identification of the pipe shall be provided by co-extruding color stripes into the <br />pipe outside surface. The striping material shall be the same material as the pipe material except <br />for color. Stripes printed on the pipe outside surface shall not be accepted. Pipe shall have three <br />equally spaced pairs of longitudinal green stripes. <br />Polyethylene pipe shall be manufactured in accordance with ASTM F 714-97, Polyethylene <br />(PE) Plastic Pipe (SDR-PR) Based on Outside Diameter, and shall be so marked. Each <br />production lot of pipe shall be tested for (from material or pipe) melt index, density, percent <br />(%) carbon, (from pipe) dimensions, and ring tensile strength. The HDPE pipe shall have an <br />equivalent ductile iron pipe sizing. The minimum dimension ratio shall be DR 11. <br />2.) Heat Fusion Joining: Joints between plain end pipes and fittings shall be made by butt fusion <br />(ASTM D3261-03) using only procedures recommended by the pipe and fitting manufacturer. <br />External and internal beads shall not be removed. Socket fusion shall not be used. Electrofusion <br />joints will be allowed in areas which are difficult to access.