INC HVAC Duct Liner
Low cost acoustical treatment for HVAC applications
INC HVAC Duct Liner is easy to install in HVAC ductwork and plenums to reduce fan and other airborne noises. Bonded glass fibers specifically designed to be installed inside sheet metal ductwork provide acoustical and thermal benefits. The smooth, fire resistant airstream surfaces resist damage during installation and in service.
Enhances indoor comfort and
more- Easy fabrication
- Clean cutting
- Comfortable handling
- Lasting performance
- Discreet appearance
- Virtually damage-proof construction
- Bacteria and fungi protection
Applications
- HVAC ductwork
- Plenums
- Fan housings
- Mixing boxes
- Furnaces & AC equipment
- Silencers & cross-talk vents
Product Features
- Available in 1" and 2" thickness
- Airstream surface resists fiber migration and damage
- Resists fungi, mold, mildew, bacteria growth, mild dust, dirt and humidity
- Clean to handle, cut and install
- Installs with mounting pin assemblies, foam adhesive, or mechanical fasteners
- 2" material has a thermal k factor of 0.25 at 75°F
- Operating temperature range: -45° to 250°F
- Maximum air velocity in ductwork of 4,000 fpm with intervals to 6,000 fpm
- Available in 48" wide x 25" long rolls
- Meets Flammability Standard NFPA 90A/90B
Not for use near open flame or sparks, in kitchen or fume ducting, or in applications that may come in contact with water.
Acoustical Performance
Standard Ductliner® Styles - Acoustical Data & Roll Size
| Ductliner Style | Roll Width | Roll Length | Sq. Ft. | NRC by Octave Band Frequency (Hz) | NRC | |||||
| 125 | 250 | 500 | 1000 | 2000 | 4000 | |||||
1" Thick |
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| DL100 | 48” | 25’ | 100 | 0.13 | 0.28 | 0.51 | 0.70 | 0.81 | 0.86 | 0.60 |
2” Thick |
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| DL200 | 48” | 25’ | 100 | 0.14 | 0.41 | 0.80 | 0.92 | 1.01 | 0.94 | 0.80 |
Insertion Loss, dB per ft of Lined Duct
| Ductliner Style | Roll Width | Roll Length | Sq. Ft. | Frequency (Hz) | |||||
| 125 | 250 | 500 | 1000 | 2000 | 4000 | ||||
1" Thick |
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| DL100 | 48” | 25’ | 100 | 0.60 | 1.50 | 2.70 | 5.80 | 7.40 | 4.30 |
2" Thick |
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| DL200 | 48” | 25’ | 100 | 0.80 | 2.90 | 4.90 | 7.20 | 7.40 | 4.30 |
Ductliner Insertion Loss based on a duct perimeter, ft/duct cross sectional area (ft2) = 8
INC
Acoustic Ductliner Specification and Installation Guide
Questions? Your INC Sales Engineer is ready to provide answers, planning help, application tips — whatever you need! Call us at 1-800-954-1998, send Email, or fill out a Request For Quotation — whatever is easiest for you.