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PLUMBING PIPING SYSTEMS <br />Section 15400 <br />15-1207 <br />B. Mechanical equipment supports shall be designed by a licensed Structural Engineer. <br />C. Provide seismic sway bracing for all suspended piping and ductwork in accordance with <br />the OSHPD anchorage pre -approval OPA-0349, the "Mason Industries Seismic Restraint <br />Guidelines for Suspended Piping, Ductwork, and Electrical Systems". Provide all piping <br />and ductwork with seismic restraints using seismic hazard level (SHL) "A" as called for in <br />SMACNA's Seismic Restraint Manual Second Edition 1998. <br />D. Acceptable Manufacturer: <br />1. <br />Mason <br />2. <br />B -Line <br />3. <br />Superstrut <br />4. <br />Unistrut <br />5. <br />Or Equal <br />E. Vertical Piping: <br />1. Support vertical piping risers securely with riser clamps, B -Line B3373, or equal. <br />Attach clamps to the pipe above each concrete floor slab, with the arms of the <br />clamp resting on the slab or the structural supports. Provide Superstrut 133373C, <br />or equal clamp when used on copper piping. <br />2. Support pipe lines passing up through the building at each floor of the building. <br />F. Horizontal Piping: <br />1. Use B -Line B3100, or equal, steel strap hanger for uninsulated steel or cast-iron <br />pipe through 8 -inch size, and for insulated steel or cast-iron pipe through 4 -inch <br />size. <br />2. Use Superstrut C-710 or equal, steel hanger in pipe sizes where suitable. Use <br />saddle shield as specified for insulated pipes. <br />3. For uninsulated copper tubing, use B -Line B3100F, or equal, felt lined hanger. <br />G. Pipe Saddles: <br />1. Use B -Line B3153, or equal, protective insulation shield with "loc" tabs. <br />H. Concrete Inserts: Provide B -Line B2500, or equal, concrete inserts. <br />PART 3 - EXECUTION <br />3.01 GENERAL <br />A. Examine areas and conditions under which plumbing piping systems are to be installed. <br />Do not proceed with Work until unsatisfactory conditions have been corrected in manner <br />acceptable to Contractor. <br />B. Comply with ANSI B31 Code for Pressure Piping. <br />C. Install pipes and pipe fittings in accordance with recognized industry practices which will <br />achieve permanently leak -proof piping systems, capable of performing each indicated <br />service without piping failure. Install each run with minimum joints and couplings but <br />with adequate and accessible unions for disassembly and maintenance/replacement of <br />