PIR Pre-insulated Aluminum Duct for HVAC Duct System
PIR Pre-insulated Aluminum Duct is a high-performance ventilation solution designed for heating, cooling, and air distribution systems in buildings. As the name suggests, it combines three key elements in one pre-made structure: a core of polyisocyanurate (PIR) foam-renowned for exceptional insulation-and inner and outer layers of durable aluminum sheets. This "all-in-one" design merges insulation, strength, and protection, making it a reliable choice for efficient and safe air flow in homes, offices, hospitals, and commercial spaces.
1. Panel Core Specifications
Structure: Silver Aluminum / PIR Foam / Silver Aluminum Foil (3-layer composite structure)
Foam Density: 52 kg/cubic meter
Panel Dimension: 3950mm × 1200mm × 20mm
Aluminum Foil Thickness: 0.06mm (embossed surface)
Packing Standard: 10 sheets per cardboard box
2. Container Loading Capacity
40'HQ Container
For panels of 3950mm × 1200mm × 20mm: 10 sheets per carton, total loading quantity of 660 sheets
For panels of 2900mm × 1200mm × 20mm: 10 sheets per carton, total loading quantity of 880 sheets
20'GP Container
For panels of 2900mm × 1200mm × 20mm: 10 sheets per carton, total loading quantity of 400 sheets

Why PIR Pre-insulated Aluminum Duct is a smart Choice?
1. Keeps Temperatures Stable, Saves Energy
The PIR foam core is a star insulator with ultra-low heat transfer properties. It stops warm air from seeping out in winter and hot air from getting in during summer, so your HVAC system doesn't have to overwork to maintain desired temperatures. This cuts energy use by up to 40% compared to traditional ducts, lowering utility bills and reducing carbon footprint.
2. Strong Fire Resistance for Safety
Safety is built in: PIR foam is naturally fire-resistant. When exposed to flames, it forms a tough char layer on the surface that slows down fire spread and limits toxic smoke release. It meets strict fire standards (like Class 0 ratings) and is trusted in high-safety areas such as hospitals, schools, and high-rise buildings.
3. Durable and Moisture-Proof
The closed-cell structure of PIR foam repels water, preventing mold growth or insulation damage from humidity. The aluminum outer layers add extra protection against corrosion, rust, and physical wear, ensuring the duct stays strong and effective for 20+ years with minimal maintenance.
4. Clean Air and Smooth Flow
The smooth aluminum inner surface resists dust buildup and microbial growth, keeping air passing through the ducts cleaner-critical for spaces like hospitals or food facilities. Its sleek design also reduces air resistance, letting air flow efficiently without wasted energy.
5. Easy to Install, Saves Time
Lightweight and prefabricated, these ducts are easier to transport and install than heavy metal alternatives. They come in standard sizes and use simple joining tools, cutting on-site construction time by half. This means faster project completion and lower labor costs.
6. Versatile for Any Space
Whether it's a residential complex, shopping mall, hotel, or industrial workshop, PIR pre-insulated aluminum ducts fit seamlessly. They work for both visible and hidden installations and can be customized into curves or special shapes to match building layouts.
PIR Pre-insulated Aluminum Duct brings together energy efficiency, safety, and durability in one solution, making it ideal for modern buildings where comfort, cost-saving, and reliability matter most.
Project Cases of PIR Pre-insulated ductwork




Specification of PIR Pre-insulated Aluminum Duct for HVAC Duct System
|
Item |
Unit |
Specification |
|
Panel Structure |
|
Alu./ PIR Foam/Alu. |
|
Standard Panel Size |
mm |
3950*1200*20 |
|
Alu. Foil Thickness |
mm |
0.06 |
|
Foam Density |
kg/m3 |
52 |
|
Thermal Conductivity |
w/m.k |
0.022 |
|
Compressing Strength |
Mpa |
0.2 |
|
Bending Strength |
Mpa |
2 |
|
Water Absorption |
% |
0.36 |
|
Dimension Change |
% |
0.3 |
|
Working Temperature |
℃ |
-100 to +80 |
|
Maximum Allowable Wind Velocity |
m/s |
≤12 |
|
Continuous Running Maximum Temperature |
℃ |
≤70 |
|
Lifespan of PIR Air Duct |
years |
>20 |
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