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PIR Pre-insulated HVAC Duct Panel
PIR pre-insulated HVAC duct panel is a high-efficiency integrated air duct material with a sandwich structure.
It adopts closed-cell polyisocyanurate foam as the core and double-sided aluminum foil as the protective layer.
Featuring ultra-low thermal conductivity, excellent flame retardancy and moisture resistance, it replaces traditional metal ducts with separate insulation.
Lightweight and easy to install, it cuts construction time and energy consumption, widely used in commercial, industrial and civil ventilation and air conditioning systems.
Structure: Silver Aluminum/ PIR Foam/ Silver Aluminum
Size: 4000*1200*20mm
Foam Density: 50-55kg/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)

Product Basic Dimension of PIR Pre-insulated HVAC Duct Panel

Structure and Material
It adopts a sandwich composite structure. The core material is hard PIR (polyisocyanurate) closed-cell foam. The double sides are coated with aluminum foil or color steel protective layer. It uses a non-fluorine environment-friendly formula. The sealed cell structure is dense and stable, achieving integration of insulation, moisture-proofing and structural reinforcement from the material level.
Core performance
The thermal conductivity is extremely low, and the heat preservation and cold preservation effects are excellent, effectively reducing the loss of air conditioning heat and cold. It can effectively reduce the heat loss of air conditioners. The flame retardant grade reaches B1 level. When burning, it forms a carbonized layer to block the fire, with low smoke emission and low toxicity. At the same time, it has comprehensive performance such as sound insulation, vibration reduction, corrosion resistance, aging resistance, and water vapor permeability prevention.
Construction Application of PIR Pre-insulated HVAC Duct Panel
Installation Advantages
Integrated prefabricated insulation design, eliminating the need for secondary insulation layer and moisture-proof layer on-site, the cutting and splicing operations are simple, no heavy equipment is required, and the construction process is significantly simplified, reducing the construction period by over 30%. The panels are lightweight, reducing the building load, and are suitable for complex construction scenarios such as high-rise buildings, commercial complexes, and rail transit.
Sealing and Maintenance
The splicing sealing performance is good, and it is not easy to leak air, reducing the wind pressure loss of the air duct; the surface aluminum foil layer is resistant to dirt and corrosion, does not easily condense and drip water, and requires almost no maintenance in the later stage, solving the pain points of traditional iron sheet air ducts being prone to rust and the detachment of insulation layers.

Market Competition of PIR Pre-insulated HVAC Duct Panel

Comparison with Traditional Galvanized Metal Air Ducts
The traditional galvanized metal air ducts are heavy, have complex processes, are prone to rust and condensation, and require multiple layers of insulation construction; the PIR pre-insulated air duct board is lightweight, integrated, fireproof and moisture-proof, and has comprehensive performance that is far ahead of traditional ducts.
Comparison with Phenolic and Ordinary PU Air Ducts
Compared with phenolic air ducts, the PIR board has higher hardness and stronger compressive strength, and is less prone to deformation and damage; compared with ordinary PU polyurethane air ducts, it has better flame retardancy, higher heat resistance, and stronger compliance with fire safety regulations.
Industry Policy Advantages
It aligns with industry policies for building energy conservation, green buildings, and fire safety upgrades. Its characteristics of low carbon, environmental protection, energy saving, and consumption reduction are in line with the material selection standards for modern building renovations and new construction projects, and the market demand continues to grow.
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