Product HighlightsThermaflex® M-KE air duct is a thermally insulated,fully lined, flexible air duct designed for use in all 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.
Thermaflex M-KE air duct provides economical means for handling misalignment between system components and ducting around obstacles where fabricated and fitted ducts are difficult and costly to install.
Thermaflex air duct is equally suitable for new jobs or refit work and is especially useful when making system extensions orfor changing conditioned zones, now or in the future.Compliance with NFPA Standards lets you install lengths longer than the limitation applying to connectors.
Thermaflex M-KE is a highly efficient duct because the liner, in combination with the reinforced, metallized vapor barrier, provides a double air seal.
California residents: see Proposition 65 Warning
Weight 12.90 Pounds Length 11.38 Inches Width 9.00 Inches Height 11.38 Inches Country of Origin USA Brand Thermaflex Tier M-KE R-Value R4.2 Jacket Material Chlorinated Polyethylene (CPE) Vapor Transmission 0.05 Application Air Distribution Certifications GreenGuard Color Silver Comments/Notes UL Listed - USA & CAN Composition Fiberglass Core Material Chlorinated Polyethylene Fire Rating Meets UL 181 & NFPA 90A-90B Fire Codes Inside Diameter 9" Insulated Yes Maximum Air Flow 5000 FPM Maximum Pressure Positive = 10" (4-12" ID) 6" (14"-16" ID) 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 200°F cont., -20°F to 250°F intermittent Pressure Rating WG - Positive 10 inches (4"-12" ID), 6 inches (14"-16" ID), 4 inches (18"-20" ID) - Negative 1 inch (4"-12" ID), 1/2 inch (14"-20" ID) Size 9" x 25' Warranty Offered Yes Compliance NFPA 90 A and 90 B UL Listed Yes UL Recognized Yes
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