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INDIAN RIVER COUNTY JULY 25, 2014 <br />INTERGENERATIONAL RECREATION CENTER 100% CONSTRUCTION DOCUMENTS <br />H. Install sprinkler control valves, test assemblies, and drain risers adjacent to standpipes when <br />sprinkler piping is connected to standpipes. <br />I. Install automatic (ball drip) drain valve at each check valve for fire -department connection, to <br />drain piping between fire -department connection and check valve. Install drain piping to and <br />spill over floor drain or to outside building. <br />J. Install alarm devices in piping systems. <br />K. Install hangers and supports for sprinkler system piping according to NFPA 13. Comply with <br />requirements for hanger materials in NFPA 13. Powder driven inserts are not allowed. <br />L. Install pressure gages on riser or feed main, at each sprinkler test connection, and at top of <br />each standpipe. Include pressure gages with connection not less than NPS 1/4 and with soft <br />metal seated globe valve, arranged for draining pipe between gage and valve. Install gages to <br />permit removal, and install where they will not be subject to freezing. <br />M. Pressurize and check preaction sprinkler system piping and air -pressure maintenance devices. <br />N. Fill sprinkler system piping with water. <br />3.4 JOINT CONSTRUCTION <br />A. Install couplings, flanges, flanged fittings, unions, nipples, and transition and special fittings that <br />have finish and pressure ratings same as or higher than system's pressure rating for <br />aboveground applications unless otherwise indicated. <br />B. Install unions adjacent to each valve in pipes NPS 2 and smaller. <br />C. Install flanges, flange adapters, or couplings for grooved -end piping on valves, apparatus, and <br />equipment having NPS 2-1/2 and larger end connections. <br />D. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe. <br />E. Remove scale, slag, dirt, and debris from inside and outside of pipes, tubes, and fittings before <br />assembly. <br />F. Flanged Joints: Select appropriate gasket material in size, type, and thickness suitable for <br />water service. Join flanges with gasket and bolts according to ASME B31.9. <br />G. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1. Cut <br />threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore <br />full ID. Join pipe fittings and valves as follows: <br />1. Apply appropriate tape or thread compound to external pipe threads. <br />2. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or <br />damaged. <br />H. Welded Joints: Construct joints according to AWS D10.12M/D10.12, using qualified processes <br />and welding operators according to "Quality Assurance" Article. <br />Shop weld pipe joints where welded piping is indicated. Do not use welded joints for <br />galvanized -steel pipe. <br />WET -PIPE SPRINKLER SYSTEMS 211313 - 6 <br />