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Round 1 Bowling and Amusement 12/09/2024 Paradigm Design <br />Main Place Mall Expansion Grand Rapids, MI <br />Santa Ana, California <br />Project #2309147GR <br />b.Piping Operating below Ambient Air Temperature: Use thermal-hanger shield <br />insert with clamp sized to match OD of insert. <br />c.Do not exceed pipe stress limits according to ASME B31.1 for power piping and <br />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- <br />distribution plate for pipe NPS 4 and larger if pipe is installed on rollers. <br />3.Install MSS SP-58, Type 40, protective shields on cold piping with vapor barrier. Shields <br />shall span an arc of 180 degrees. <br />a.Option: Thermal-hanger shield inserts may be used. Include steel weight- <br />distribution plate for pipe NPS 4 and larger if pipe is installed on rollers. <br />4.Shield Dimensions for Pipe: Not less than the following: <br />a.NPS 1/4 to NPS 3-1/2: 12 inches long and 0.048 inch thick. <br />b.NPS 4: 12 inches long and 0.06 inch thick. <br />c.NPS 5 and NPS 6: 18 inches long and 0.06 inch thick. <br />d.NPS 8 to NPS 14: 24 inches long and 0.075 inch thick. <br />5.Insert Material: Length at least as long as protective shield. <br />3.3 EQUIPMENT SUPPORTS <br />A.Fabricate structural-steel stands to suspend equipment from structure overhead or to support <br />equipment above floor. <br />B.Grouting: Place grout under supports for equipment and make smooth bearing surface. <br />C.Provide lateral bracing, to prevent swaying, for equipment supports. <br />3.4 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 <br />shop welded because of shipping size limitations. <br />C.Field Welding: Comply with AWS D1.1 procedures for shielded metal arc welding, appearance <br />and quality of welds, and methods used in correcting welding work, and with the following: <br />1.Use materials and methods that minimize distortion and develop strength and corrosion <br />resistance of base metals. <br />2.Obtain fusion without undercut or overlap.