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DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 237690 - HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT <br />C. Insulation - Insert Material for Cold Piping: Water - repellent treated, ASTM C 533, Type I calcium <br />silicate or ASTM C 552, Type 11 cellular glass with vapor barrier. <br />D. Insulation - Insert Material for Hot Piping: Water - repellent treated, ASTM C 533, Type I calcium <br />silicate or ASTM C 552, Type II cellular glass. <br />E. For Trapeze or Clamped Systems: Insert and shield shall cover entire circumference of pipe. <br />F. For Clevis or Band Hangers: Insert and shield shall cover lower 180 degrees of pipe. <br />G. Insert Length: Extend 2 inches beyond sheet metal shield for piping operating below ambient air <br />temperature. <br />2.6 FASTENER SYSTEMS <br />A. Powder - Actuated Fasteners: Threaded -steel stud, for use in hardened portland cement concrete <br />with pull -out, tension, and shear capacities appropriate for supported loads and building materials <br />where used. <br />1. Available Manufacturers: <br />a. Hilti, Inc. <br />b. ITW Ramset /Red Head. <br />C. Masterset Fastening Systems, Inc. <br />d. MKT Fastening, LLC. <br />e. Powers Fasteners. <br />B. Mechanical- Expansion Anchors: Insert- wedge -type zinc - coated steel, for use in hardened portland <br />cement concrete with pull -out, tension, and shear capacities appropriate for supported loads and <br />building materials where used. <br />1. Available Manufacturers: <br />a. B -Line Systems, Inc.; a division of Cooper Industries. <br />b. Empire Industries, Inc. <br />C. Hilti, Inc. <br />d. ITW Ramset /Red Head. <br />e. MKT Fastening, LLC. <br />f. Powers Fasteners. <br />2.7 EQUIPMENT SUPPORTS <br />A. Description: Welded, shop- or field- fabricated equipment support made from structural -steel shapes. <br />2.8 MISCELLANEOUS MATERIALS <br />A. Structural Steel: ASTM A 36/A 36M, steel plates, shapes, and bars; black and galvanized. <br />B. Grout: ASTM C 1107, factory -mixed and - packaged, dry, hydraulic- cement, nonshrink and <br />nonmetallic grout; suitable for interior and exterior applications. <br />1. Properties: Nonstaining, noncorrosive, and nongaseous. <br />2. Design Mix: 5000 -psi, 28 -day compressive strength. <br />PART 3 - EXECUTION <br />3.1 HANGER AND SUPPORT APPLICATIONS <br />A. Specific hanger and support requirements are specified in Sections specifying piping systems and <br />equipment. <br />Reece, Noland & McElrath, Inc. 237690-3 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />