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Product Structure and Core Parameters of AluPIR Duct Panel
AluPIR Duct Panel (aluminum surface PIR prefabricated ventilation duct panel) is an integrated prefabricated insulation ventilation duct panel specially developed for HVAC systems. It adopts a "double-sided aluminum foil + PIR rigid foam core material" sandwich structure. When manufactured, it integrates insulation, structure, air tightness, and moisture-proof functions, eliminating the need for additional insulation.
Standard size: 3950×1200×20 mm (mainstream), customizable from 10–40 mm thickness;
Core material: high-density PIR rigid foam, with a closed-cell ratio of ≥95%, density of 50–55 kg/m³;
Surface layer: double-sided 0.06–0.08 mm corrosion-resistant aluminum foil, with strong air tightness and water vapor barrier properties;
Thermal conductivity: 0.018–0.022 W/m·K (20℃), far superior to traditional insulation materials.
Thermal Performance and Energy Saving of AluPIR Duct Panel
The core value lies in ultra-low thermal conductivity + no thermal bridges + airtight and leak-proof, significantly reducing air conditioning energy consumption.
Thermal conductivity comparison: PIR (0.022) < XPS (0.033) < Rockwool (0.040) < Glass wool (0.045). The thermal resistance of 20 mm AluPIR is approximately R ≈ 0.9 m²·K/W, equivalent to the insulation effect of 40 mm Rockwool;
Energy consumption reduction: Compared to traditional galvanized iron sheet ducts (with 25 mm Rockwool on the outside), the system energy consumption is reduced by 25–30%; for a 10,000㎡ commercial building, it saves approximately 250,000 kWh of electricity and reduces CO₂ emissions by approximately 200 tons;
Condensation prevention: Full aluminum foil sealing + closed-cell structure, water vapor permeability ≈ 0, eliminating condensation on the pipe wall and dripping water, suitable for high-humidity environments (such as hospitals, food factories);
Heat loss: Traditional duct leakage + thermal bridge loss is approximately 15%, while the integrated sealing design of AluPIR controls heat loss within 2%.
Structural Strength and Installation Efficiency of AluPIR Duct Panel
Lightweight and high-strength + modular design, installation efficiency increased by 3-5 times, and overall cost reduced.
Weight: approximately 1.5 kg/m², 80% lighter than iron sheet ducts, significantly reducing building load and support/hanging frame costs;
Strength: 53 kg/m³ high-density PIR core material, bending strength ≥ 0.3 MPa, no obvious sagging at 4 m span, 30% fewer reinforcement points;
Installation: dedicated cutting tools, dovetail jointing, no welding / flanges required, a 4-person team can install up to 80-100 m² per day, traditional iron sheet only 20-30 m²; project duration shortened by 50%, labor cost reduced by 40%;
No secondary insulation: factory insulation, eliminating 5 processes of "welding → rust removal → painting → outsourcing insulation → wrapping tape" for iron sheet ducts, the site is cleaner.
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