Thanks to its excellent products and quality services, UNT Duct is one of the leading pu foam hvac ducting 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 HVAC Ducting
PU foam HVAC ducting is a lightweight, pre-insulated ductwork system featuring a rigid polyurethane foam core sandwiched between protective aluminum facings. It offers superior thermal insulation, excellent sound attenuation, and simplified installation, making it a highly efficient, energy-saving alternative to traditional metal ductwork for modern air conditioning systems.
Structure: Silver Aluminum/ PU Foam/ Silver Aluminum
Panel Thickness: 10-40mm
Size: 3950*1200mm or 2900*1200mm
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 Structure and Physical Parameter of PU Foam HVAC Ducting
The core competitiveness of PU ducts is primarily reflected in the design of their physical parameters. The density of the closed-cell foam typically ranges from 45 to 50 kg/m³. In terms of thickness, common specifications range from 10mm to 40mm to accommodate different wind pressures and insulation requirements.
Lightweight characteristic: The greatest physical advantage of this material lies in its lightness. Compared to galvanized iron sheet ducts of the same volume, the unit weight of PU ducts can be reduced by more than 80% (approximately 1.3-1.4 kg/m² compared to 8.32 kg/m²), significantly reducing the load on the building structure and providing material selection options for high-rise buildings.
Surface layer function: The double-sided aluminum foil not only serves to prevent moisture and corrosion, but also has a smooth surface which helps reduce air resistance and is easy to clean. For places with high cleanliness requirements (such as hospitals and pharmaceutical factories), there is also a smooth aluminum foil surface layer available, meeting hygiene standards.
Construction Installation and Comprehensive Benefit of PU Foam HVAC Ducting
From an engineering perspective, the greatest advantage of PU ducts lies in their ease of installation and cost control overall.
Installation is convenient: The PU duct can be cut, folded and connected on-site using a special tool, just like assembling a "cardboard box". There is no need for welding or large machinery. This significantly increases the construction efficiency and greatly shortens the construction period.
Life cycle cost: Although the unit price of the material may be higher than that of ordinary iron sheets, considering that it saves the costs of insulation materials, installation labor, and auxiliary materials, and has a lifespan of 15 to 20 years and low maintenance costs, its overall cost-effectiveness is more advantageous in the long-term operation.
Acoustic Performance and Noise Reduction of PU Foam HVAC Ducting
Noise control is an important criterion in modern building HVAC design. PU foam performs better than traditional metal ducts in this regard.
Damping and Vibration Reduction and Sound Absorption: The metal duct wall is thin and easily transmits the vibration generated by the fan operation and the noise caused by air friction. The PU foam core material itself has the characteristic of a porous structure for sound absorption, which can effectively absorb the airflow noise and utilize its damping property to suppress the propagation of vibration.
No additional noise reduction measures are required: In regular projects, using PU ducts can reduce or even eliminate the need for external mufflers or the application of sound-absorbing cotton on the inner walls. This not only lowers the material cost but also avoids the impact on indoor air quality caused by the shedding of traditional sound-absorbing cotton fibers. Its sound absorption coefficient varies with thickness and density, and performs exceptionally well in specific frequency bands.
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