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SAMSON OCEANFRONT PARK <br />CITY OF SUNNY ISLES <br />TECHNICAL SPECIFICATIONS <br /> <br />HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 15062-4 <br /> <br /> <br /> <br />to permit freedom of movement between pipe anchors, and to facilitate action of expansion joints, <br />expansion loops, expansion bends, and similar units. <br />H. Install lateral bracing with pipe hangers and supports to prevent swaying. <br />I. Install building attachments within concrete slabs or attach to structural steel. Install <br /> Additional attachments at concentrated loads, including valves, flanges, and strainers, NPS 2- <br /> 1/2 <br /> <br /> and larger and at changes in direction of piping. Install concrete inserts before concrete is <br />placed; fasten inserts to forms and install reinforcing bars through openings at top of inserts. <br />J. Load Distribution: Install hangers and supports so that piping live and dead loads and stresses <br /> from movement will not be transmitted to connected equipment. <br /> <br />K. Pipe Slopes: Install hangers and supports to provide indicated pipe slopes and to not exceed <br /> maximum pipe deflections allowed by ASME B31.9 for building services piping. <br /> <br />L. Insulated Piping: <br />1. Attach clamps and spacers to piping. <br />a. Piping Operating above Ambient Air Temperature: Clamp may project through insulation. <br />b. Piping Operating below Ambient Air Temperature: Use thermal-hanger shield insert with <br />clamp sized to match OD of insert. <br />c. Do not exceed pipe stress limits allowed by ASME B31.9 for building services piping. <br />2. Install MSS SP-58, Type 39, protection saddles if insulation without vapor barrier is <br /> indicated. Fill interior voids with insulation that matches adjoining insulation. <br />a. Option: Thermal-hanger shield inserts may be used. Include steel weight-distribution plate <br />for pipe NPS 4 <br />3. Install MSS SP-58, Type 40, protective shields on cold piping with vapor barrier. Shields <br /> and larger if pipe is installed on rollers. <br /> shall span an arc of 180 degrees. <br />a. Option: Thermal-hanger shield inserts may be used. Include steel weight-distribution plate <br />for pipe NPS 4 <br />4. Shield Dimensions for Pipe: Not less than the following: <br /> and larger if pipe is installed on rollers. <br />a. NPS 1/4 to NPS 3-1/2: 12 inches long and 0.048 inch <br />b. <br /> thick. <br />NPS 4: 12 inches long and 0.06 inch <br />c. <br /> thick. <br />NPS 5 and NPS 6: 18 inches long and 0.06 inch <br />d. <br /> thick. <br />NPS 8 to NPS 14: 24 inches long and 0.075 inch <br />e. <br /> thick. <br />NPS 16 to NPS 24: 24 inches long and 0.105 inch <br />5. Pipes <br /> thick. <br />NPS 8 <br /> length at least as long as protective shield. <br /> and Larger: Include wood or reinforced calcium-silicate-insulation inserts of <br />6. Thermal-Hanger Shields: Install with insulation same thickness as piping insulation. <br /> <br />3.02 <br /> <br />EQUIPMENT SUPPORTS: <br />A. Fabricate structural-steel stands to suspend equipment from structure overhead or to support <br /> equipment above floor. <br /> <br />B. Grouting: Place grout under supports for equipment and make bearing surface smooth. <br /> <br />C. Provide lateral bracing, to prevent swaying, for equipment supports. <br /> <br />3.03 <br /> <br />METAL FABRICATIONS: <br />A. Cut, drill, and fit miscellaneous metal fabrications for trapeze pipe hangers and equipment <br /> supports. <br />B. Fit exposed connections together to form hairline joints. Field weld connections that cannot be