Product HighlightsThermaflex® G-KM air duct is a thermally insulated, fully lined, flexible air duct designed for use in low to medium pressure cooling and heating systems. It is used in either supply or return sections: for branch ducts and branch connections to or between mixing units, induction units,control or terminal units and diffusion devices, including light troffers. It provides economical means for handling misalignment between systems components and ducting around obstacles where fabricated and fitted ducts are difficult and costly to install. It is equally suitable for new jobs or refit work and is especially useful when making systems extensions or for changing conditioned zones, now or in the future.
Compliance with NFPA Standards lets you installlengths longer than the limitation applying to connectors. It is a highly efficient part of the total duct system because the smooth liner, the ample insulation and tough vapor barrier provide good air flow, thermal insulation and a double airseal. The heavy spring steel wire helix assures dimensional stability and more efficient air delivery particularly in tight radius bends.
California residents: see Proposition 65 Warning
Weight 11.00 Pounds Length 11.38 Inches Width 8.00 Inches Height 11.38 Inches Country of Origin USA Brand Thermaflex R-Value R4.2 Jacket Material Fiberglass Scrim and a Tough Polyethylene Vapor Barrier Vapor Transmission 0.1 Perms Certifications Greenguard, GreenGuard Children & Schools, Greener Product, CHPS Member Color Black, Pink Comments/Notes UL Listed - USA & CAN Composition Fiberglass Core Material Chlorinated Polyethylene Features Highly Efficient, Thermally Insulated Flexible Duct For Use In Low And Medium Pressure Heating And Cooling Systems. Acoustically Rated, Self-Extinguishing Cpe Core Expands Over Fittings. Core Is Permanently Bonded To A Coated Spring Steel Wire Helix That Fire Rating NFPA 90A-90B Fire Codes Inside Diameter 8" Insulated Yes Maximum Air Flow 5000 FPM Maximum Pressure Positive = 6" (3-16" I.D.) 4" (18-20"ID) Negative= 1" (4-12" ID) 1/2" (14-20"ID) Maximum Temperature 250°F (121.1°C) Operating Temperature -20°F to 250°F (-28.8°C to 121.1°C) Pressure Rating WG - Positive 6 inches (3"-16" ID), 4 inches (18"-20" ID) - Negative 1 inch (4"-12" ID), 1/2 inch (14"-20" ID) Size 8" x 25' Warranty Offered Yes Compliance NFPA 90 A and 90 B UL Listed Yes UL Recognized Yes Tier G-KM
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