5" x 25' M-KE R6 Insulated Silver Acoustical Flexible Air Duct - Box

Product Highlights

Thermaflex® 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 o
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Item #: 21205A

Mfg #: 055805000001

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Description

Product Highlights

Thermaflex® 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

Specifications
Weight9.30 Pounds
Length24.25 Inches
Width8.50 Inches
Height8.50 Inches
Country of OriginUSA
BrandThermaflex
R-ValueR6
Jacket MaterialVapor Barrier
Vapor Transmission0.1 Perms
ColorPink, Silver
CompositionFiberglass
Core MaterialCorrosion Resistant Steel Wire Helix
Fire RatingMax Flame Spread = 25
Inside Diameter5"
InsulatedYes
Maximum Air Flow5000 FPM
Maximum PressurePositive 10 Inches (4-12 in diameter) 6 inches (14-16 in diameter) 4 Inches (18''-20'' Diameter) Negative 1 inche (4-12 in diameter) 1/2 inch (14-20 in diameter)
Maximum Temperature250°F (121.1°C)
Operating Temperature-20°F to 250°F (-28.8°C to 121.1°C)
Pressure RatingPositive 10 Inches (4-12 in diameter) 6 inches (14-16 in diameter) 4 Inches (18''-20'' Diameter) Negative 1 inche (4-12 in diameter) 1/2 inch (14-20 in diameter)
Size5" x 25'
Warranty OfferedYes
ComplianceNFPA 90 A and 90 B
UL ListedYes
UL RecognizedYes
TierM-KE
ConstructionInner liner provides an air seal constructed of woven and coated fiberglass permanently bonded to a coated spring steel wire helix. Inner liner supports a thick fiberglass insulation blanket. Vapor barrier for the assembly is an outer jacket of a fibergla
Documentation

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