Thermaflex®

Thermaflex - 53709000002 - 9" x 25' KM R4.2 Flex-Vent Insulated Flexible Air Duct

Item: THFKMR4B9
MFG: 053709000002
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Description

Flex-Vent KM Has A Strong Polyester Film Laminated and Encapsulating A Heavy, Corrosion Resistant Steel Wire Helix, Forms the Innercore and Supports A Thick Blanket Of Fiberglass Insulation. The Outer Vapor Barrier Is A Bi-Directional, Reinforced Metallized Vapor Barrier Which Will Not Unravel. The Smooth Air Tight Inner Core Of Polyesteris Designed For Low To Medium Pressure Systems.

Flex-Vent Advantages:
  • Fast, Economical Installation.
  • Oversized Cores For Proper Fit.
  • Easily Shaped To Fit Oval Inlets.
  • Superior Insulation and Thermal Performance.
  • UL181 Listed and Complies with NFPA Standards 90A and 90B.
  • Complies with Most State and Federal Standards or Codes.
  • Ideal For Residential Air Distribution and Venting Applications.
  • Flex-Vent Is Competitively Priced and Backed By A 5 Year Warranty.
Specs:
  • Diameter: 4-20 Inches ID
  • Pressure Rating: (Wg)
  • Positive: 10" (4"-16" ID) 6" (18"-20" ID)
  • Negative: 1/2" (4"-20" ID)
  • Velocity: 5000 Fpm
  • Temperature Range: -20F To 250F
  • R Value: R-4.2, R-6.0, R-8.0

California residents: see Proposition 65 Warning

Features and Specification

Weight 11
Brand Thermaflex®
Compliance NFPA 90 A and 90 B
Composition Fiberglass
Core Material Laminated Polyester Film
Cubic Measurement 0.9847
Dimensional Weight 34
EAN 0677431001632
Fire Rating NFPA 90A-90B Fire Codes
Flex Length 25'
Flex Type Insulated
Height 13.75
Inside Diameter 9"
Insulated Yes
Jacket Color Silver
Jacket Material Laminated Polyester Film
Length 13.75
Maximum Air Flow 5000 FPM
Maximum Pressure Positive = 10" (4-16" ID) 6" (18-20"ID) Negative= 1/2" (4-20" ID)
Maximum Temperature 250°F (121.11°C)
Operating Temperature -20°F to 250°F (-28.8°C to 121.1°C)
Package Type Bag
Package Height 13.75
Package Length 13.75
Package Weight 11
Package Width 24.25
Pressure Rating WG - Positive 10 inches (4"-16" ID), 6 inches (18"-20" ID) - Negative: 1/2 inch (4"-20" ID)
Prop 65 Yes
R-Value R4.2
Size 9" x 25'
UL Listed Yes
UOM BG
UPC 677431001632
Vapor Transmission 0.1 Perms
Width 9
Country of Origin USA

Documents

picture_as_pdf consumer literature

picture_as_pdf specification sheet

picture_as_pdf submittal sheet