Thanks to its excellent products and quality services, UNT Duct is one of the leading pu foam composite air duct manufacturers and suppliers in China. Welcome to buy the high quality and customized products from our factory. We will offer you the best service and fast delivery.
PU Foam Composite Air Duct
PU Foam Composite Air Duct is a modern, multi-layered composite material used primarily for constructing heating, ventilation, and air conditioning (HVAC) ductwork. They represent an alternative to traditional metal ducts that require separate, on-site insulation.
Structure: Silver Aluminum/ PU Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 40-45kg/m3
Aluminum Thickness: 0.06mm or 0.08mm
Aluminum Color: Silver
Packing: 10 sheets/ package
Loading Capacity: 710 sheets/ 40'HQ (packed with plastic bags)
660 sheets/ 40'HQ (packed with cardboard box)
Core Benefits That Benefit Your Contracting Business
Drastically Shorten Construction Period & Reduce Labor Costs
The panels are approximately 70% lighter than galvanized steel sheets. On-site procedures including GI duct fabrication and external insulation wrapping are fully eliminated. Installation efficiency rises by 40%–60%, enabling contractors to undertake more projects with the same workforce and cut overtime labor costs.
Less Rework & Fewer After-sales Issues
The closed-cell PIR foam boasts extremely low water absorption. It effectively prevents condensation, mildew and corrosion frequently encountered with insulated galvanized steel ducts, minimizing call-back repairs and disputes with property owners.
Competitive Energy-saving Advantages to Win Tenders
Thanks to the ultra-low thermal conductivity of the PIR core, air conditioning energy consumption of buildings can be reduced by 20%–30%. Fully compliant with green building energy standards, it serves as a powerful differentiator to outperform competitors in bidding.
Complete UNTDuct Supporting Accessories for Flawless Assembly
A full range of matching components is available, including aluminum/PVC flanges, specialized sealant, suspension brackets and dedicated processing tools. All accessories are precisely tailored to the panels to achieve airtight connections and prevent leakage-related rework.
Broad Application Coverage
Applicable to offices, shopping malls, hotels, hospitals, food cleanrooms, cold storage facilities and coastal high-humidity buildings. It meets the requirements of almost all commercial central air-conditioning projects.
Superior Long-term Benefits for Your Clients
Featuring a service life of 20–50 years and minimal maintenance requirements, the panels reduce the building's long-term operating expenses. This strengthens the competitiveness of your quotation and enhances client satisfaction.
We offer free operational training for your technicians, standard construction drawings, on-site technical support and post-project consultation, allowing your team to rapidly master panel cutting, grooving and duct manufacturing.
Fire protection, durability and operation and maintenance costs of PU Foam Composite Air Duct
Fire Safety
The PIR foam core achieves Class B1 flame retardancy, while the aluminium foil facings are classified as A1 non-combustible materials. The material features low smoke emission and no molten dripping during combustion. It complies with international fire standards including BS 476 and EN 13501, making it suitable for high fire-risk environments such as data centres, metro transit systems and hospitals.
Long Service Life
The panels deliver excellent corrosion resistance. After 720 hours of immersion in acidic and alkaline solutions, the material retains 95% of its mechanical strength, free from rusting or pulverisation. The rated service life reaches 20 years. In contrast, conventional galvanized steel ducts are susceptible to rust and only last 5–8 years, whereas phenolic duct panels tend to crack and fail within 3–5 years.
Low Operation & Maintenance Costs
Equipped with moisture-proof and anti-corrosion surface properties, the panels require no annual rust removal or repainting work. Annual maintenance expenditure is merely 30% of that needed for traditional duct systems. Benefiting from minimal air leakage, the load on air handling units is lowered. Fan energy loss and equipment maintenance frequency are also reduced, bringing a 30%–40% cut in total whole-life-cycle costs.
How to fabricate Rigid PU Pre-insulated Straight Duct
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