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DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> Orange County Emergency Services Building Construction Documents <br /> 2.03 JACKETS <br /> A. PVC Plastic. <br /> 1. Manufacturers: <br /> a. Johns Manville Corporation: www.jm.com. <br /> b. Speedline Corporation <br /> c. Knauf Insulation <br /> 2. Jacket: One piece molded type fitting covers and sheet material, off-white color. <br /> a. Minimum Service Temperature: 0 degrees F. <br /> b. Maximum Service Temperature: 150 degrees F. <br /> c. Moisture Vapor Permeability: 0.002 perm inch, maximum, when tested in accordance <br /> with ASTM E96/E96M. <br /> d. Thickness: 30 mil. <br /> e. Connections: Brush on welding adhesive. <br /> 3. Covering Adhesive Mastic: Compatible with insulation. <br /> B. Canvas Jacket: UL listed 6 oz/sq yd plain weave cotton fabric treated with dilute fire retardant <br /> lagging adhesive. <br /> 1. Lagging Adhesive: Compatible with insulation. <br /> C. Aluminum Jacket: ASTM B209 (ASTM B209M)formed aluminum sheet. <br /> 1. Thickness: 0.016 inch sheet. <br /> 2. Finish: Embossed. <br /> 3. Joining: Longitudinal slip joints and 2 inch laps. <br /> 4. Fittings: 0.016 inch thick die shaped fitting covers with factory attached protective liner. <br /> 5. Metal Jacket Bands: 3/8 inch wide; 0.015 inch thick aluminum. <br /> PART 3 EXECUTION <br /> 3.01 EXAMINATION <br /> A. Verify that piping has been tested before applying insulation materials. <br /> B. Verify that surfaces are clean and dry, with foreign material removed. <br /> 3.02 INSTALLATION <br /> A. Install in accordance with manufacturer's instructions. <br /> B. Where existing piping is either relocated or damaged during construction, it shall be reinsulated to <br /> match these specifications. <br /> C. Where insulation thickness exceeds 3 inches, the insulation shall be two layers. Secure first layer <br /> before installing the next layer and stagger the joints. <br /> D. Exposed Piping: Locate insulation and cover seams in least visible locations. <br /> E. Insulated pipes conveying fluids below ambient temperature; insulate entire system including <br /> fittings, valves, unions, flanges, strainers, flexible connections, and expansion joints. <br /> F. Glass fiber insulated pipes conveying fluids above ambient temperature. <br /> 1. Provide standard jackets, with vapor barrier, factory-applied or field-applied. Secure with <br /> self-sealing longitudinal laps and butt strips with pressure sensitive adhesive. Secure with <br /> outward clinch expanding staples. <br /> 2. Insulate fittings,joints, and valves with insulation of like material and thickness as adjoining <br /> pipe. Finish with glass cloth and adhesive or PVC fitting covers. <br /> G. Inserts and Shields: <br /> 1. Shields: Galvanized steel, 20 gauge, one half the circumference of the insulation, and a <br /> minimum of 12 inches long, between pipe hangers or pipe hanger rolls and inserts. <br /> 2. Insert location: Between support shield and piping and under the finish jacket. <br /> 3. Insert Configuration: Minimum 6 inches long, of same thickness and contour as adjoining <br /> insulation; may be factory fabricated. <br /> 4. Insert Material: Hydrous calcium silicate insulation or other heavy density insulating material <br /> suitable for the planned temperature range. <br /> H. Continue insulation through walls, sleeves, pipe hangers, and other pipe penetrations. Finish at <br /> supports, protrusions, and interruptions. <br /> PDC Project 18102 HVAC PIPING INSULATION 23 07 19 -2 <br /> 12/17/2018 <br />