Thanks to its excellent products and quality services, UNT Duct is one of the leading pu duct sheet 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 Duct Sheet
Polyurethane (PU) Foam Pre-insulated Air Duct Panel is a leading solution for air distribution in central air conditioning systems, renowned for its advanced design and energy-efficient performance. As part of one of the most cutting-edge air duct systems globally, it combines CFC & HCFC-free PU foam pre-insulated duct panels with professional supporting accessories and installation tools.
Panel Structure: Alu. Foil/ PU Foam/ Alu. Foil
Foam Density: 42kg/m3
Panel Size: 3950mm*1200mm*20mm
Aluminum Thickness: 0.06m
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)
Main Production Process of PU Duct Sheet
1. Raw Material Mixing
2. Aluminum Foil Embossing
3. PU/pIR Foam Injection
4. foaming & Laminating
5. Pre-insulated duct Cutting
6. duct panel Auto-stacking
7. Packing of Pre-insulated Duct
8. Stocking of pre-insulated duct
Product Structure and Core Technical Advantages of PU Duct Sheet
Integrated sandwich structure, highly integrated performance
The panels are formed by the "double-sided protective layer + PU insulation core layer" composite process. The protective layer provides strength, sealing and anti-corrosion, while the core layer offers insulation and vibration reduction. The integrated molding avoids layer separation and hollowing, making it more stable and durable than the traditional "metal sheet + external insulation" method.
Extremely efficient insulation and energy saving, industry-leading thermal conductivity
The thermal conductivity of the PU closed-cell foam is as low as 0.018–0.022 W/(m·K). The high closed-cell ratio blocks cold and heat bridges, significantly reducing air conditioning loss, and the system's comprehensive energy consumption can be reduced by 15%–30%. The long-term operation can recover the cost quickly.
Lightweight and high strength, reducing building load
The self-weight is only 1/3 to 1/2 of the traditional duct, significantly reducing the load of the ceiling and structural support. It is convenient for the renovation of high-rise and old buildings and the use in large-span scenarios, while also enhancing seismic resistance and long-term safety.
Construction and Installation Value of PU Duct Sheet
One-step installation, significantly shortened construction period
Factory prefabrication, on-site cutting and bonding, no welding, fewer rivets, 50% reduction in process steps, installation efficiency is 3-5 times that of traditional ducts, enabling rapid delivery for rush projects.
Low air leakage rate, more efficient system
Standardized processing + special sealing, air leakage rate can be controlled at **≤2%**, meeting national standard level 1, significantly reducing fan energy consumption and noise, enhancing indoor comfort.
Adaptable to complex spaces, flexible customization
Can be cut, bent, and changed in diameter on-site, suitable for machine rooms, pipe wells, irregular ceilings and other narrow and complex layouts, supports non-standard sizes and thickness customization, meeting design needs in multiple scenarios.
PUR AIR DUCT ADVANTAGES
PUR AIR DUCT ADVANTAGES
Excellent Insulation Properties
Ignitability index 0
Longer life span 20 years
Reduce construction time and cost
Eco-friendly product (CFC-Free)
Energy saving
Create thermal comfort
Cleanable & Hygienic
Noise reduction
Spread of flame index 0
Heat evolved index 0
Lightweight material with built-in PIR Core
Environmental Adaptability and Durability of PU Duct Sheet
Waterproof and anti-corrosion, preventing mold and rust
Aluminum foil blocks moisture, and the PU closed-cell structure does not absorb water. This eliminates condensation, rusting, and mold growth at the source, making it particularly suitable for humid areas and clean spaces.
Stable weather resistance, longer lifespan
Wide applicable temperature range, no powdering, no collapse, and no loss of insulation performance during long-term use. The normal service life can reach 15-25 years, with lower total life cycle cost.
Noise reduction and vibration damping, enhancing indoor experience
The foam core layer absorbs the vibration and air flow noise of the fan, reducing the resonance transmission of the duct. Compared to metal ducts, the noise reduction effect is better, suitable for places sensitive to noise such as hospitals, hotels, and offices.
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