DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

3 .2 PIPE INSTALLATIONA. Clean all pipe before installation. Remove all internal debris. Ream and deburr all pipe ends aftercutting. For threaded pipe, cut threads with dimensions in accordance with ANSI B1.20.1-83.B. For threaded joints, apply noncorrosive, nonhardening teflon pipe thread compound or teflon tapeto male threads only.C. Keep openings in pipe closed during construction to prevent entrance of foreign matter.D. Provide aboveground piping with unions where shown and as necessary to permit alterations andrepairs.E. Install exposed gas piping parallel with building walls or structure. The lower end of all verticalsupply piping near burners shall terminate with a tee, nipple, and cap to serve as a scale trap (dirtleg).F. Install gas piping and accessories in accordance with the recommendations and requirements ofNFPA 54-96, NFPA 58-95, ASTM D2774-94, the local propane gas supply company, and inaccordance with manufacturer's recommendations. Heat fusion bonded joints in plastic pipingshall be made by certified personnel only.G. Polyethylene pipe shall be used for underground gas distribution piping; butt fusion connectionsand fusion connections between polyethylene pipe and socket fittings shall be made in strictaccordance with piping and/or pipe fitting manufacturer's instructions; threaded or compressiontype connections will not be allowed.H. Minimum cold bending radius for polyethylene pipe shall be 25 times the outside diameter of thepipe. If fittings are present in the bend, the minimum cold bending radius shall be 125 times theoutside diameter of the pipe.I. A minimum 12 AWG copper tracer wire shall be installed with and attached to all undergroundplastic piping. Attachment of the wire to the pipe shall be made with plastic tie-wraps or otherapproved method. Tracer wires shall be interconnected by soldering them together where theymeet at each piping intersection and shall terminate at each pipe end. Attach tracer wire to end-oflinemarker post center rods at each gas pipe end point.J. Flexible Piping Connectors: Install specified flexible connectors at gas equipment pipingconnections to compensate for movement, settling, and vibration.3 .3 UNDERGROUND VALVE AND VALVE BOX INSTALLATIONA. Install in conformance with manufacturer's installation instructions. Valve boxes shall beadequately supported against settlement so that no forces from the valve box can be transmitted tothe valve or connecting piping. Install valve boxes as detailed on the drawings for roadway andnon-traffic areas.3 .4 METERS AND REGULATORSA. Install meters and regulators where shown on the drawings. Provide additional bracing asnecessary to support meters and regulators. Regulators shall be mounted in the gas riser as shownwith the vent pointing down. Field adjust regulator pressure settings as necessary for proper15360-6PROPANE GAS DISTRIBUTION SYSTEM