Superior Air
Duct® Semi-Flex
Specifications:
- Length: 12'
- Diameter: 4”, 5” , 6”, 7”, 8”, 9”, 10”,
12”, 14”, 16”, 18”, 20”
- Packaging: 1 section per package
- Inner Core: (2 to 4) ply polyester with steel wire helix spaced every 1/2 ” to
1”
- 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:
- US Patent # 6,425,419 B1
- ICBO (International conference of building officials)
- BOCA (Building officials and code administrators)
- CABO (Council of American building officials)
- SBCCI (Southern building code congress international)
- Tested for compliance to standard for safety UL 181
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