Division 22 23 Ebook Page 117 VaporWick Pipe Insulation Product Data Sheet

Technical Information The VaporWick System was developed for piping systems that operate at below ambient temperatures, which present special considerations due to the possibility of water vapor migration to the cold pipe surface. If the operating temperature of the piping system is below the dew point of the ambient air, moisture will condense on the cold pipe surface. With time, the condensed water will accumulate, reducing the R-value of the insulation, and possibly resulting in dripping, which can stain ceiling tiles and damage building contents below The problem is not limited to open cell insulation materials. Many closed cell insulations have low water vapor permeability, yet water buildup is a serious problem due to incomplete sealing at longitudinal seams and butt joints Traditionally, designers have relied on vapor retarders and mastics or other sealants to slow the ingress of moisture. This approach is highly dependent on the skill and experience of the installers. In contrast, VaporWick Pipe Insulation incorporates a patented concept that utilizes a unique wicking material to remove condensed water from the system, keeping the insulation dry. Water vapor that enters the system and condenses on the cold pipe surface is removed to the outer surface by capillary action, where it then evaporates to the ambient air. Thermal Conductivity Mean Temp. F k Btuin/ hrft 2 F Mean Temp. C W/m C 50 0.22 10 0.032 75 0.23 25 0.034 100 0.24 50 0.037 150 0.27 100 0.043 200 0.29 125 0.047 Note: Values are nominal, subject to normal testing and manufacturing tolerances. Applications VaporWick Pipe Insulation is engineered for insulation of cold piping and dual temperature piping operating at temperatures from 32F (0C) to 220F (104C) in buildings and industrial facilities Installation of VaporWick Pipe Insulation is similar to regular fiberglass pipe covering. See VaporWick Pipe Insulation Installation Instructions for complete details (Publication No. 44645) Installation The VaporWick System can be applied on new and retrofit jobs. Unlike traditional insulation, this system may readily be installed on operating systems even if the pipes are wet and slightly corroded. Caution is needed on severely corroded sections as pipe diameters may exceed those listed in ASTM C585. This may cause an improper pipe fit and result in overloading of the system and/or failure of the closure tape resulting in system failure. For severely corroded pipes, rust and scale should be removed before installation. Ensure that the recommended thickness has been specified to prevent surface condensation The VaporWick System is not recommended for outdoors or exposed piping where additional jacket finish is required. Application should be at temperatures between 25F (-4C) and 110F (44C) The evaporation holes must remain uncovered and unpainted at all times after installation. Painting or covering over the evaporation holes will defeat the function of the system. Use of stickers, labels, or colored tape is recommended for pipe service identification Standards, Codes Compliance ASTM C547 , Mineral Fiber Pre-Formed Pipe Insulation, Type 1 2 ASTM C795 , Thermal Insulation for Use Over austenitic Stainless Steel 3 ASTM C585 , Inner and Outer Diameters of Rigid Thermal Insulation for Pipe and Tubing N uclear Regulatory Commission Guide 1.36, Non-Metallic Thermal Insulation 3 NFPA 90A NYC MEA N o. 349-02M 2. Exception required for max use temp. 3. Preproduction qualification testing complete and on file. Chemical analysis of each production lot required for total conformance.

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