Insulated Flexible Duct, Insulation Value R 8.0, UPC Number 31, Inside Dia. 12 In., Wall Thickness 2-1/2 In., Vapor Transmission 0.05, Material Polyester, Length 25 ft., Max. Air Flow 5000 fpm, Max. Pressure 6 In.WC, Max. Temp. 140?F, Compressed Size 38 In., Low Temp. Deg. -20?F, Fire Rating Flame Spread/Smoke Developed-Less Than 25/Less Than 50, For Use With Low Pressure Air Moving Systems, Features Double Ply Vapor Barrier with Tri Directional Reinforcements
- Note: R-Values are in accordance with ADC Flexible Duct Performance and Installation Standards (2003) using ASTM C-518 at installed wall thickness on flat insulation only.
- Recommended operating press.: 3/4" WC neg., all dia.; 6" WC pos., all dia. except 4" WC pos. for 14" to 18" dia. Temp. range: uninsulated duct -20 to 180 F; insulated duct -20 to 140 F @ max. press. and -20 to 180 F @ 2" pos. WC max.
- Rated positive pressure: 10" WC per UL 181 Velocity: 5,000 fpm Standard lengths: 25 ft. Flame spread/smoke developed: < 25 / < 50 Rated for indoor use
- Feature double-ply vapor barrier with tridirectional reinforcements. All-purpose ducts are gray polyester. Premium ducts are metallized polyester.