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H. Pipe joints <br /> 2 <br /> i 3 1. Pipe shall be cleaned of dirt and scale prior to installation and all joints swabbed clean <br /> 4 before jointing. Ends of all pipe shall be closed or plugged at the end of each day's <br /> 6 work and otherwise as necessary to prevent the entrance of foreign materials. <br /> s <br /> ' 7 2. The Contractor shall perform all work of cutting pipe and special castings necessary <br /> 6 to the assembly, erection and completion of the work. All pipe shall be cut and <br /> 9 reamed to fit accurately with smooth edges. <br /> ' 1a <br /> 11 I. Coatings for buried piping <br /> 12 <br /> 13 All buried valves, flange assemblies, flexible connections, flange coupling adapters, tie rods <br /> 14 and similar fittings and connections with threaded fasteners shall be coated with two coats <br /> 15 of Coal Tar, Koppers Bitumastic 50, Tnemec 47-461, or equal. This requirement does not <br /> 16 apply to mechanical joint fittings and connections, but does apply to valves with mechanical <br /> 17 joints. <br /> 16 <br /> 19 3.03 IDENTIFICATION <br /> 20 <br /> ' 21 See Section 10400. <br /> 22 <br /> 23 3.04 TESTING <br /> 24 <br /> 25 See Section 01667. <br /> 26 <br /> 27 3.05 CLEANING AND FLUSHING <br /> 28 <br /> 29 A. All pipe lines shall be cleaned of all soil, dirt, rocks, and other debris and objectionable <br /> 30 material. <br /> 31 <br /> 32 B. Pipelines 24 inches in diameter and smaller shall be cleaned first by pulling a tightly fitting <br /> 33 cleaning ball or swab through the pipe. <br /> 34 <br /> 35 C. After initial cleaning, flush the interior of all piping. Upon completion of flushing, completely <br /> 36 drain systems at all low points; remove, clean, and replace all strainer baskets and refill <br /> 37 systems. <br /> 36 <br /> 39 <br /> 40 <br /> 41 <br /> 42 <br /> 43 END OF SECTION <br /> 1 <br /> GENERAL PROCESS AND ONSITE UTILITY PIPING PROVISIONS <br /> 081294 15010-7 <br />