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Aluminium Non-Insulated Flexible Duct
Description
Why Choose IMDUCT Non-Insulated Aluminum Ducting?
Multi-Layer Strength
Constructed with premium aluminum foil and polyester film (1-ply to 4-ply options) for superior tear resistance.
Extreme Flexibility
High-tensile spiral steel wire helix allows easy bending around obstacles without kinking or collapsing.
Fire Rated Safety
Classified as fire-retardant, providing peace of mind for residential kitchen exhaust and commercial HVAC.
Standard Compliance
Dimensions and mechanical resistance certified according to EN 13180 and CE requirements.


Technical Specifications
| Model Series | Construction | Wall Thickness | Max Pressure | Temp Range |
|---|---|---|---|---|
| ALU 1.0 | 1 Ply Aluminum + 1 Ply Polyester | ~0.028 mm | 2500 Pa | -30°C to +130°C |
| ALU 2.0 | 2 Ply Aluminum + 1 Ply Polyester | ~0.032 mm | 3000 Pa | -30°C to +130°C |
| ALU 3.0 | 4 Ply Aluminum + 2 Ply Polyester | ~0.064 mm | 3500 Pa | -30°C to +130°C |
Available Sizes & Dimensions
Standard Length: 10 Meters (Customized lengths available on request).
| Size (mm) | Wire Distance (mm) | Operating Pressure (Pa) | Air Velocity (m/s) | Certificate | Packing |
|---|---|---|---|---|---|
| 85mm (3″) | 28 | 2500/3000 | 30 | SGS | Plastic Bag + Carton Box |
| 102mm (4″) | 35 | 2500/3000 | 30 | SGS | |
| 127mm (5″) | 40 | 2500/3000 | 30 | SGS | |
| 152mm (6″) | 40 | 2500/3000 | 30 | SGS | |
| 160mm (6″) | 40 | 2500/3000 | 30 | SGS | |
| 165mm (6″) | 40 | 2500/3000 | 30 | SGS | |
| 203mm (8″) | 45 | 2500/3000 | 30 | SGS | |
| 254mm (10″) | 45 | 2500/3000 | 30 | SGS | |
| 305mm (12″) | 45 | 2500/3000 | 30 | SGS | |
| 315mm (12″) | 45 | 2500/3000 | 30 | SGS | |
| 356mm (14″) | 50 | 2500/3000 | 30 | SGS | |
| 407mm (16″) | 50 | 2500/3000 | 30 | SGS | |
| 457mm (18″) | 50 | 2500/3000 | 30 | SGS | |
| 508mm (20″) | 50 | 2500/3000 | 30 | SGS |
Primary Applications
- Residential HVAC: Connection between main ducts and registers.
- Kitchen Exhaust: Ideal for range hoods (grease and heat resistant).
- Tumble Dryer Venting: The 4-inch model is the industry standard for safe exhaust.
- Industrial Ventilation: Fresh air supply and light-duty dust extraction.

Expert Recommendations & Related Products
Need Thermal Efficiency?
Prevent condensation in cold air systems.
Noise Sensitive Areas?
Perfect for home theaters and high-end offices.
Frequently Asked Questions
- Q1: Can this aluminum duct be used for gas furnaces?
- A: No, this is designed for low-pressure ventilation and exhaust. For furnace flues, please consult local codes for B-Vent or specific piping requirements.
- Q2: Is the IMDUCT aluminum duct fireproof?
- A: Yes, it is made from non-combustible aluminum foil and meets Class 0 fire safety standards for HVAC systems.
- Q3: What sizes are most common for residential use?
- A: The 4-inch, 6-inch, and 8-inch diameters are most popular for bathroom fans, range hoods, and dryer venting.





