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pe管英文规范pe管英文规范 ----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- HDPE Pipes HDPE Pipes and fittings shall be to DIN 8074/8075 or AWWA C906-99. Pipe. The ends of each pipe shall be plain and suitable for heat fusion. Pipe...

pe管英文规范
pe管英文规范 ----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- HDPE Pipes HDPE Pipes and fittings shall be to DIN 8074/8075 or AWWA C906-99. Pipe. The ends of each pipe shall be plain and suitable for heat fusion. Pipe and fittings shall be class 10 or 16 kg/cm2. Materials used shall have a standard PE code designation 3408 and a minimum hydrostatic design basis of 1600 psi according to AWWA C906 Table 1. Manufacturers shall provide certification that stress regression testing has been performed on the pipe products. Materials shall also meet elevated temperature requirements as given in Table 2 AWWA C906. HDPE Fittings shall be to AWWA C906, extruded or injection moulded suitable for class of pipe required. Joints for HDPE pipes and fittings shall be by heat fusion and in strict accordance with pipe manufactures recommendations. Joints shall have a tensile strength equal to that of the pipe. Fusion temperature, interface pressure, alignment and cooling time, shall be according to manufactures recommendations. Tests on HDPE Compounds: HDPE compounds in pipes and fittings shall contain no ingredients in an amount that has been demonstrated to migrate into water in quantities considered to be toxic. HDPE compounds shall be tested and certified suitable for potable water by the National Sanitation Foundation (NSF) Testing Laboratory – USA, or the Canadian Standard Association (CSA) Testing Laboratory, or other accredited testing agency. Tests shall be made in accordance with requirements no less restrictive than those in the NSF Standard No. 14 (1976), Sections 3 and 4. The seal and mark of the testing laboratory shall be included on pipes and fittings. uPVC PIPE AND FITTINGS uPVC pipes shall conform to AWWA C900, Class 200, with bell end with gasket, and with spigot end. The pipes shall conform to the following specific requirements: • Comply with UL 1285 for fire-service mains. • PVC Fabricated Fittings: AWWA C900, Class 200, with bell-and-spigot or doublebell ends. Include elastomeric gasket in each bell. • PVC Molded Fittings: AWWA C907, Class 150, with bell-and-spigot or double-bell ends. Include elastomeric gasket in each bell. ----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------- ----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- • Push-on-Joint, Ductile-Iron Fittings: AWWA C110, ductile- or gray-iron standard pattern or AWWA C153, ductile-iron compact pattern. • Gaskets: AWWA C111, rubber. • Mechanical-Joint, Ductile-Iron Fittings: AWWA C110, ductile- or gray-iron standard pattern or AWWA C153, ductile-iron compact pattern. Glands, Gaskets, and Bolts: AWWA C111, ductile- or gray-iron glands, rubber gaskets, and steel bolts. ----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- -----------------------------------------------------------------------------------------------------------------------------
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