Division 22 23 Ebook Page 252 Section 23 07 19 HVAC Piping Insulation-Fiberglasí Insulation

HVAC PIPING INSULATION 23 07 19 - 4 HVAC Piping Insulation FIBERGLAS Insulation 2. For systems operating at temperatures to +1000F (538C) with heat-up schedule and always above the ambient temperature: a. Owens Corning No Wrap Pipe Insulation. 3. For systems operating below ambient (32F (0C) to +65F (18C)) temperature: a. Owens Corning VaporWick Pipe Insulation. (see HVAC Piping Insulation - VaporWick Pipe Insulation) Note to Specifier: Select from the following insulation types, based on systems operating temperature requirements: D. Perpendicular Oriented Mineral Fiber Insulation: ASTM C1393, Type IIIB, Category 2: 1. For piping equal to or larger than 10 in (250 mm) diameter operating at temperatures up to +850F (454C): a. Owens Corning Flexwrap FIBERGLAS TM Insulation. E. Perpendicular Oriented Mineral Fiber Insulation: ASTM C1393, Type II, Category 1: 1. For piping equal to or larger than 10 in (250 mm) diameter operating at temperatures up to +650F (343C): a. Owens Corning FIBERGLAS TM Pipe and Tank Insulation. 2.3 FIELD-APPLIED JACKETS A. General: Field-applied jackets shall comply with ASTM C921. 1. At Below-Ambient Temperatures: Type I. 2. At Above-Ambient Temperatures: Type II, where a vapor barrier is not required. B. PVC Jackets: ASTM D1784, Class 16354-C; 0.020 in thick PVC jacketing and fitting covers. 1. Acceptable Manufacturer: Proto Corp., Clearwater, FL 33762; www.protocorporation.com C. Aluminum Jackets: ASTM C1729, Class A, 0.016 in thick aluminum jacket with 3 mil thick polysurlyn moisture barrier factory-heat-laminated to the interior surface. 1. Acceptable Manufacturer: ITW Insulation Systems, Houston, TX 77022; www.itwinsulation.com 2.4 ACCESSORY MATERIALS A. Accessories: Provide accessories per insulating system manufacturer's recommendations, including the following: 1. Closure Materials: Butt strips, bands, wires, staples, mastics, adhesives, and pressure-sensitive tapes. a. Mold resistant mastics are recommended for chilled water applications. 2. Field-Applied Jacketing Materials: Sheet metal, plastic, canvas, fiber glass cloth, insulating cement, PVC fitting covers. 3. Support Materials: Hanger straps, hanger rods, saddles, support rings, and high density inserts. B. Adhesives For Indoor Applications: VOC content of 50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24).

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