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MECHANICAL INSULATION <br />Section 15250 <br />15-1207 <br />1.04 SUBMITTALS <br />A. Submit complete data of materials proposed. <br />1. Indicate individual services for each system. <br />2. Indicate proposed insulation thickness for each system <br />3. Indicate proposed R -valves, densities, etc. for each product. <br />B. Provide Manufacturer's installation instructions for each product. <br />PART 2 - PRODUCTS <br />2.01 GENERAL <br />A. For purposes of this specification, fittings, joints, strainers, flexible piping, valves, etc. shall <br />be considered as piping and shall be insulated with same material and thickness as <br />adjoining piping unless noted otherwise. <br />B. Acceptable Manufactures <br />1. <br />Knauf <br />2. <br />Johns Manville <br />3. <br />Certainteed <br />4. <br />Owens-Corning <br />2.02 MATERIALS <br />A. Fiberglass Piping Insulation: <br />1. <br />Insulation to be heavy density glass fiber insulation. <br />2. <br />Insulation to have factory -applied self-sealing vapor barrier. <br />3. <br />Maximum K -Value at 75°F = 0.23 Btu-in/hr-FTS °F. <br />4. <br />Rigid segment of insulation to be provided at all pipe hangers <br />5. <br />Fittings and valves to be insulated with John Manville Zeston 2000 Series 25/50 <br />Smoke -Safe PVC pre -molded insulated covering secured with standard fasteners. <br />6. <br />Insulation to be Johns Manville Micro -Lok or equal. <br />B. Flexible Closed Cell Insulation: <br />1. Flexible elastomeric thermal closed -cell structure insulation. <br />2. Maximum K -Value at 75°F = 0.27 Btu-in/hr-FTS °F. <br />3. Joints to be sealed with Armstrong 520 Adhesive <br />4. Insulation to be Armstrong Armaflex 22 or equal <br />C. Fiberglass Ductwork Insulation: <br />1. Duct wrap to be blanket -type thermal and acoustical insulation made from glass <br />fibers, bonded with white formaldehyde -free resin. <br />2. Labeled K -Value to equal 0.29 Btu-in/hr-FT2 °F. <br />3. Compressed K -Value to equal 0.27 Btu-in/hr-FT2 °F. <br />4. Insulation to be Johns Manville Microlite XG or equal. <br />2 <br />