Superior Air Ducts

Documentation

Do you use or install High Velocity?

Superior Air Duct® High Velocity Semi-Flex

Specifications:

Length: 25'
Diameter: 2”
Packaging: 25' to 100' per bag
Inner Core: (2 to 4) ply polyester with steel wire helix spaced every 3/8” to 1/2”
Vapor Barrier: Metallized mylar jacket with a heavy cross hatched reinforced scrim
End Treatment: Raw ended
Insulation: R8-2” treated cotton

Performance Data:

R Value: R8 in accordance with ASTM C 518
Flame Spread: Less than 5
Smoke Developed: Less than 35
Attributes: ASTM C 739, fungi resistant, non corrosive, bacteria resistant
Acoustic Ratings: NRC=1.15, STC=57
Rated Positive Pressure: 10” W G per UL-181 (UL listed pressure ratings are determined in straight lengths @ ambient temperatures)
Recommended Operating Pressure: (Determined in a 90° bend at elevated temperatures in accordance with ADC FD 72-R1 test code)
Maximum Positive: 6” W.G. – 4” thru 12” diameter, 4” W.G. – 14” thru 12” diameter (with factory installed metal collars, 2” W.G. all diameter)
Maximum Negative: ¾” W.G. – all diameters
Maximum Velocity: 5,000 FPM
Vapor Transmission: .6 perms
Maximum Operating Temperatures:
-20° to 140° continuous (@ maximum pressure)
-20° to 180° continuous (@ 2” Positive W.G. maximum)
-20° to 250° continuous (@ ½” positive W.G. maximum)

Code Compliance: