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141SC#4\FILES\9750SPEC Page 13 of 22 <br /> 2 . Galvanized steel pipe and fittings are to be used only <br /> for tank riser pipes, risers to emergency shut-off <br /> valves, and swing joints at vent risers. Above ground <br /> vent risers shall be steel pipe. <br /> 3 . Do not use galvanized pipe and fittings with diesel fuel. <br /> Use black iron pipe and fittings. <br /> B. FIBERGLASS PIPE: Pipe and fittings to be UL approved, non- <br /> metallic, for underground piping of petroleum products. The <br /> pipe is to have bell and spigot joints. <br /> Approved Fiberglass Pipe: <br /> Ciba-Geigy <br /> Dualoy-3000 Pipe System <br /> A.O. Smith Inland Inc. <br /> Red Thread II Pipe System <br /> (or approved equals) <br /> 1. Non-metallic fittings are to be those manufactured by the <br /> supplier of the pipe being used. <br /> 2 . Install pipe and fittings in accordance with <br /> manufacturer's instructions. <br /> C. STEEL PIPE: (Galvanized or Black Iron) <br /> Schedule 40 (ASTM A-120) Steel Pipe <br /> 250# Railroad Unions <br /> 150# Malleable Iron Fittings <br /> (or approved equals) <br /> 1. Do not use standard couplings normally furnished with the <br /> pipe. <br /> D. HANDLING OF PIPE AND FITTINGS: <br /> 1. FIBERGLASS PIPE: Careful handling is a must. Protect <br /> against abrasion from sharp or hard objects; impact <br /> damage from improper storage, transporting, laying or <br /> backfilling. Inspect all pipe for damage prior to using <br /> in the piping system. <br /> 2 . STEEL PIPE AND FITTINGS: Protect against damage to the <br /> protective coating/wrapping. <br /> 4 . 1 INSTALLATION REQUIREMENTS <br /> A. Interior surface of all pipe and fittings must be free from <br /> dirt, scale, metal, fiberglass particles, etc. , before <br /> connecting. <br />