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PU Insulated Air Ducting
The PU Insulated Air Ducting is a modern, energy-saving alternative to traditional sheet metal HVAC ductwork. Its defining characteristic is a factory-integrated insulation core, which forms a composite panel that serves simultaneously as an air conduit and a thermal barrier.
Constructed as a three-layer sandwich panel, it features a rigid polyurethane foam core with a high-density, closed-cell structure of approximately 45–50 kg/m³, providing both structural integrity and superior insulation. This foam core is permanently bonded on both sides to protective facings, typically 60–80 micron aluminum foil, which ensures a robust, airtight, and moisture-resistant surface. In more demanding exterior applications, the outer facing can be upgraded to a thicker aluminum sheet or pre-painted galvanized steel for enhanced durability.
Compliance Standards and Environmental Attributes of PU Insulated Air Ducting
Safety Compliance: The fire resistance rating reaches non-flammable B1 level. It complies with international standards such as GB 8624-2012 and EN 45545, and the smoke toxicity meets the standards.
Environmental Safety: It does not contain harmful substances such as CFC, formaldehyde, and free benzene. It meets the environmental limit standards for building insulation materials and is green and pollution-free.
Scene Restrictions: It is not suitable for acidic or alkaline environments and smoke exhaust and prevention systems. In high-pressure scenarios, specialized reinforced products need to be selected.=
Specification of PU Insulated Air Ducting
Typical technical data for PU Insulated Air Ducting is as follows:
| Property | Typical Specification |
|---|---|
| Panel Thickness | 10, 15, 20, 25, 30, 40 or 42 mm |
| Panel Size (L x W) | 4000 x 1200 mm (common), 3950 x 1200 mm, 2900 x 1200 mm |
| Aluminum Thickness | 60, 80 microns |
| Aluminum Sheet Thickness | 150-200 microns |
| Foam Density | 45 kg/m³ |
| Thermal Conductivity | 0.020 W/m·K |
| Closed Cell Rate | >95% |
| Air Leakage Rate | ≤2% |
| Working Temp. | -60°C to 80°C |
| Water Absorption | <0.1% - 0.36% |
| Max. Wind Velocity | ≤ 12 - 20 m/s |
| Life Span | 20+ years |
| Noise Reduction Effect | 15-25 db |
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