High Pressure Flexible Ducts (T12-series)
Clevaflex High Pressure Flexible Ducts are designed for HVAC applications that require a stronger duct construction due to higher air pressure.
| Type 12 | Type 12FV | Type 12FA | |
|---|---|---|---|
| Construction: | 2-plies of aluminum permanently fused together and corrugated creating a continuous inner and outer surface that is airtight, flexible and strong. | Type 12 core wrapped with fiberglass insulation and sleeved in polyethylene vapor barrier. | Type 12 core wrapped with fiberglass insulation and sleeved in a fiberglass reinforced, metalized polyester vapor barrier. |
| Length: | 10' standard | 10' standard | 10' standard |
| Operating Temp: | 0 - 750°F | 10 - 200°F | 10 - 200°F |
| Velocity: | 5,000 FPM | 5,000 FPM | 5,000 FPM |
| Working Pressure: | 20" WC positive and negative | 20" WC positive and negative | 20" WC positive and negative |
| Burst Pressure: | 88" WC | 88" WC | 88" WC |
| 2-Ply Aluminum Core: | |||
| Inner Ply: | .0025" thick, AL 1100-H19 | .0025" thick, AL 1100-H19 | .0025" thick, AL 1100-H19 |
| .003" thick, AL 3003-0 | .003" thick, AL 3003-0 | .003" thick, AL 3003-0 | |
| Outer Ply: | |||
| Insulation: | N/A | 1-1/4" thick Std. | 1-1/4" thick Std. |
| R-Value: | N/A | 4.2 Std., 6.0 & 8.0 | 4.2 Std., 6.0 & 8.0 |
| Vapor Barrier: | N/A | 0.17 perms | 0.05 perms |
| ID Size | 3" | 4" | 5" | 6" | 7" | 8" | 9" | 10" | 12" | 14" | 16" |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Weight oz/ft: Type 12 | 2 | 3 | 5 | 6 | 6.9 | 7.8 | 11 | 12 | 14.3 | 17 | 19.4 |
| Weight oz/ft: Type 12FV, 12FA | 2.9 | 4.1 | 6.3 | 7.6 | 8.3 | 9.6 | 12.5 | 13.5 | 16.1 | 19.8 | 22.6 |
| Crush Strength - lbs/ft | 150 | 140 | 140 | 125 | 110 | 100 | 110 | 100 | 90 | 100 | 90 |
| Span - Max Unsupported | 4' | 5' | 6' | 7' | 7' | 8' | 9' | 10' | 10' | 10' | 10' |
Type 12
Type 12FA
Type 12FV
Codes:
- Clevaflex Type 12, Type 12FV and Type 12FA have been tested by Underwriters’ Laboratories to UL Standard 181 and are listed as Flexible Air Duct Connectors, Class 0 and Class1.
- Clevaflex Type 12, Type 12FV and Type 12FA meet the requirements of Bulletin 90A of the National Fire Protection Association for all diameters.
Applications:
- For main trunk and return lines
- Vertical takeoff from supply duct to single outlet in order to compensate for misalignment
- Connecting lines from mixing boxes in the main trunk systems or directly from the plenum to room inlets or diffusers
- Connecting lines to under-window perimeter units
- Connector to combination light troffers
- Connector from the low-pressure side of attenuation boxes to diffusers
- Connector from hot and cold ducts to mix boxes on the high-pressure side of a dual duct system
Performance Benefits:
- Improved Airflow – Maintains a constant cross-sectional area throughout a bend with pressure loss comparable to die-formed elbows
- Flexible and Easy to Install – Will not kink on 90-degree bends making it easy to use in tight areas
- Economical Installation – Easy to field-cut to desired length, eliminating waste and reducing handling costs
- Self Supporting – Semi-rigid construction eliminates sag and droop between connection points providing a neat finished appearance
- Corrosion Resistance – All metal construction will not rust or rot, and is impervious to damage by mold or mildew
- Fire Resistant – All metal construction allows continuous operating temperatures from 200 degrees Fahrenheit
- Quiet – Corrugated construction reduces the transmission of mechanical vibration and noise
Suggested Specifications:
- Contractor shall furnish and install Clevaform T12-Series High Pressure Flexible Duct: Type 12, Type 12FV or Type 12FA as manufactured by Clevaflex in sizes and locations where indicated on drawings.
- Clevaform Type 12 shall be all-metal, semi-rigid construction, consisting of two plies of aluminum strip, permanently fused together and corrugated creating a continuous inner and outer surface that is airtight, flexible and strong.
- Clevaform Type 12FV shall consist of a Type 12 core and be wrapped with fiberglass insulation, and then sleeved in a polyethylene vapor barrier.
- Clevaform Type 12FA shall consist of a Type 12 core and be wrapped with fiberglass insulation, and then sleeved in a fiberglass reinforced, metalized polyester vapor barrier.
- Duct connections to equipment and outlet collars shall be made in accordance with the manufacturer’s recommendations.
Note 1: Since installation of the materials and conditions of use are important factors in obtaining satisfactory results and are beyond our control, Clevaflex can make no warranties, expressed or implied, including warranties of merchantability and fitness for a particular purpose, with respect to the material or its use or performance. All consequential damages whatsoever are expressly excluded.
Note 2: The statements regarding the characteristics, properties and performance of the materials described herein are based on data believed reliable, but no guarantee of their accuracy is made and such statements should not be construed as warranties or as the basis therefore.