| Material: | Composite Material |
|---|---|
| Usage: | for Air Conditioner |
| Application: | Fire Resistance |
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The Aluminum Foil Insulated Flexible Duct is an efficient and durable air distribution solution tailored for modern HVAC ventilation systems. It features a double-layer aluminum inner duct, surrounded by a nonwoven polyester (synthetic fiber) insulation layer, and enclosed with a reinforced aluminum foil outer jacket.
This three-layer configuration delivers excellent thermal insulation while maintaining a strong yet flexible form. The reinforced foil outer jacket enhances resistance to pressure, tearing, and surface abrasion, making the duct well-suited for long-term installations in residential, commercial, and industrial HVAC applications.
The nonwoven insulation layer is clean, odorless, and non-toxic-making it suitable for interior air handling and ventilation systems where indoor air quality and user safety are priorities.
Factory-compressed and lightweight, the duct is easy to handle, transport, and install. Whether used for supply or return lines, this foil-based insulated flexible duct supports energy efficiency, airflow consistency, and project convenience across a wide range of ventilation tasks.
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Jacket: |
Aluminum |
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Insulation Wrap: |
Fiberglass wool or polyester wrap (25/30mm thickness) |
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Density of Fiberglass Wool: |
16kg/m³, 24kg/m³, 32kg/m³ |
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Density of Polyester: |
100g/m3-750gm3 |
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Inner Duct: |
Aluminum, reinforced with a steel wire helix |
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Maximum Air Velocity: |
30 m/s |
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Working Pressure: |
Up to 3000 Pa |
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Temperature Range: |
-30°C to 150°C |
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Ease of Cutting |
No special tools required; easy to connect to ducting |
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Fire & Pressure Testing |
Successfully tested for fire resistance and pressure |
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Flexibility |
Can be bent in any direction (small bending radius) |
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Length |
Standard length: 10 meters, customizable upon request |
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Space Saving |
Compression ratio of 10:1 |
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Installation |
Easy installation, long service life; ideal for general-purpose exhaust applications |
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Duct Diameter |
Steel Wire (mm) |
Steel Wire Spacing (mm) |
Carton Size for 10 Meters (mm) |
|
4″ (102mm) |
0.9 |
30 |
200×200×1010 |
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5″ (125mm) |
0.9 |
30 |
200×200×1010 |
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6″ (152mm) |
1.0 |
37 |
230×230×1010 |
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6.5″ (165mm) |
1.0 |
37 |
240×240×1010 |
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7″ (180mm) |
1.1 |
40 |
260×260×1010 |
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8″ (203mm) |
1.1 |
40 |
280×280×1010 |
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10″ (254mm) |
1.2 |
45 |
330×330×1010 |
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12″ (305mm) |
1.2 |
45 |
380×380×1010 |
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12.5″ (315mm) |
1.2 |
45 |
390×390×1010 |
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14″ (355mm) |
1.2 |
45 |
430×430×1010 |
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16″ (405mm) |
1.2 |
45 |
480×480×1010 |
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18″ (455mm) |
1.2 |
45 |
530×530×1010 |
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20″ (505mm) |
1.2 |
45 |
580×580×1010 |
Comprehensive Range Of Insulated Flexible Ducts Insulated Flexible Duct
At GFI HVAC, we provide a comprehensive range of insulated flexible ducts, designed for various ventilation, air distribution, and thermal insulation needs in commercial, industrial, and residential HVAC systems.
Our product line includes multiple material configurations to meet specific requirements for flame resistance, mechanical strength, and installation environments.
We offer various models such as:
| Layer | Material Options | Function |
|---|---|---|
| Inner Core | Aluminum foil, PET film, PVC layer, or multi-combinations (e.g., Aluminum + PET) | Provides smooth air conveyance, resists corrosion, and maintains vapor barrier |
| Insulation | Fiberglass wool or Polyester fiber | Delivers effective thermal insulation and acoustic reduction |
| Outer Jacket | Metallized PET (VMPET), PVC film, reinforced aluminum foil, or laminated composites | Offers fire protection, UV resistance, and moisture shielding |
Our insulated flexible ducts meet various international quality and fire safety standards, including:
Class A2 fire resistance
EN13501-1 M0/M1 Rating
UL94 (Flame Retardancy)
ISO 9001:2015 certified production processes
GFI HVAC's flexible duct production facility spans 2400 square meters, equipped with 5 advanced production lines. Our products are widely distributed across more than 30 countries and regions, including the United States, Canada, Italy, Germany, New Zealand, Dubai, Japan, and South Korea.
Committed to continuous improvement and strict quality control, we have obtained ISO 9001 certification, passed national fire protection standards for building materials, and comply with international environmental regulations such as REACH.
Since 2011, GFI HVAC has been dedicated to the HVAC industry, beginning with galvanized duct (GI duct) and pre-insulated duct manufacturing. Over the past 13 years, we have steadily expanded our operations, establishing and investing in new production facilities to enhance our capabilities.
Today, GFI HVAC operates three duct production line(GI Duct, Spiral Duct, PID Duct) and a dedicated manufacturing site for air vents and dampers. Additionally, we have strategically invested in rubber insulation and flexible duct factories, further strengthening our ability to provide integrated solutions for HVAC projects.
Beyond factories and workers, we also have well-established trade and logistics departments. In business management, GFI HVAC values humanity and shared beliefs. We firmly believe that GFI HVAC is not just a manufacturer but a company driven by human-centric values and a strong collective vision.
GFI HVAC provides advanced HVAC solutions to hospitals, factories, airports, stadiums, commercial complexes, and engineering contractors in over 50 countries worldwide. Additionally, GFI actively participates in international HVAC exhibitions in China, Thailand, Vietnam, and beyond, staying at the forefront of industry trends and fostering deep collaborations with global clients.
At GFI, we are more than just a manufacturer-we are your partner in building a sustainable and efficient future. Let's innovate together and create global value!
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