R4.2 Insulated Flexible Duct

R4.2 Insulated Flexible Duct combines high-quality insulation with flex duct to deliver thermal resistance that reduces heat loss or gain. Testing under UL 181 standards confirms its capacity to handle up to 10” water gauge (w.g.) positive pressure with recommended continuous use at 6” water w.g. Our premium insulated duct has a double ply, metalized polyester vapor barrier with tri-directional reinforcements.
UPC #030 – Double ply polyester core. R-Value = 4.2

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Submittal PDF

Category: Spiral Pipe and Fittings

Description

See our R4.2 Insulated Flexible Duct performance data:

Rated Positive Pressure: 10” w.g. per U.L. 181
Recommended Operating Pressures: 6” w.g. pos., 4”-12” dia., 4” w.g. pos.,
14”-20” dia.; 3/4” w.g. neg., all dia.
Velocity: 5,000 FPM
Standard Diameters: 4”-20”
Flame Spread/Smoke Developed: Less than 25/ Less than 50
Standard Lengths: 25’

*R-Values are classified by Underwriters Laboratories Inc., in accordance with the ADC Flexible Duct Performance and Installation Standards (1991) using ASTM C-518 at installed wall thickness on flat insulation only.

Code Compliance – UL 181, NFPA 90A & 90B, SBCC, ICBO, BOCA, HUD 515-2.1(b)

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