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WET -PIPE SPRINKLER SYSTEMS <br />Section 15360 <br />15-1207 <br />cutting and core drilling; obtain Architect's approval before cutting or core drilling. <br />7. Provide all patching required for work of this Section, including concrete <br />replacement; patch to match adjacent work and to architect's satisfaction. <br />8. Any fire sprinkler pipe located outside of the buildings shall be protected with <br />heat tape and insulation. <br />Above -grade piping <br />a. Do not use additional couplings except where length of pipe between <br />fittings exceeds 20 feet or more. <br />b. Make reductions in pipe sizes with one piece reducing fitting. Bushings <br />shall not be acceptable, except when standard fittings of proper size are <br />not manufactured. Single bushings of the face type will be permitted up to <br />5% of total number of reducing fittings in the system. Where bushings are <br />used, install with outer face flush with face of fitting opening being reduced. <br />C. Install piping to clear light fixtures, air ducts, and other trades, for minimum <br />clearance of 1 inch including concrete foundations, walls, and floors. <br />All sprinkler piping shall be inspected prior to installation to ensure the pipe <br />is free of welding slag and cutouts, and ensure that the welded fittings do <br />not protrude into the path of water flow. <br />e. Install piping level, plumb, and parallel to structure line except where shown <br />otherwise or required by function or regulation to be angled or sloped. <br />Install piping concealed within penetrations provided in the structure except <br />where shown as exposed. <br />g. Install piping without bending, springing, forcing, or placing undue stress on <br />the pipe or fittings. <br />Install piping to allow for expansion, contraction, and structural settlement. <br />Install piping so it does not directly contact the structure except where <br />shown or specified otherwise. <br />Install piping so that it does not interfere with equipment access. <br />k. The use of plain end pipe, fittings and couplings shall not be permitted, <br />except for welded piping. <br />Penetrations through fire rated walls shall be sealed in accordance with a <br />recognized UL/FM assembly. <br />5 <br />