Thanks to its excellent products and quality services, UNT Duct is one of the leading pu insulation hvac 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 Insulation HVAC Duct
The PU Insulation HVAC Duct features a sandwich composite core structure, with rigid polyurethane foam as the central substrate and double-sided aluminum foil serving as protective facings. This layered construction delivers outstanding comprehensive physical performance.
We provide a full range of specifications to accommodate engineering projects of all scales and performance demands:
Thickness Options Available thickness spans 10 mm to 40 mm, with 20 mm as the most widely adopted standard grade to satisfy varying wind load and thermal insulation demands.
Dimension Standards Standard panel lengths include 3950 mm, 2950 mm and 2900 mm, with a uniform width of 1200 mm. The standardized dimensions simplify logistics transport and flexible on-site cutting & layout.
Diversified Surface Facings
80μm embossed aluminum foil: Ideal for general indoor ventilation environments
200μm aluminum sheets or color-coated steel sheets: Designed for outdoor installation and applications requiring superior bending strength
Smooth aluminum foil cladding: Customized for high-standard cleanroom projects including hospitals and pharmaceutical workshops.
Fire protection, durability and operation and maintenance costs of PU Insulation HVAC Duct
Fire Safety Performance
Class B1 flame retardant; aluminium foil surface: A1 non-combustible. Low smoke output and no dripping while burning. Complies with BS 476 and EN 13501, ideal for high fire-risk sites: data centres, subways and hospitals.
Service Lifespan
Strong corrosion resistance. 95% strength retained after 720 hours acid/alkali immersion; no rust or pulverisation. Designed service life: 20 years. Galvanized steel ducts rust easily (5–8 years lifespan); phenolic ducts crack within 3–5 years.
Operation and Maintenance Expenses
Thanks to inherent moisture-proof and anti-corrosion surfaces, regular annual rust cleaning and coating are unnecessary. Annual maintenance costs drop to 30% of those for conventional duct systems. Low air leakage decreases the workload of primary HVAC units, lowering fan power consumption and equipment maintenance frequency. The overall life-cycle cost can be reduced by 30%–40%.
Applications of PU Insulation HVAC Duct
In the field of architecture: Exterior curtain walls (limited to buildings under 24 meters), interior partition walls, commercial storefronts, suitable for scenarios such as airports, shopping malls, and factories. It can quickly replace traditional materials in the renovation and transformation of old buildings.
Special scenarios: With a temperature resistance range of -185 ℃ to 120℃, it is widely used in cold storage, refrigerated trucks, and clean rooms, while meeting GMP clean space requirements.
Transportation and advertising: It can be processed into the interior of train carriages and large advertising signs, supporting RAL color system customization and irregular cutting.
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