Introduction to PIR Foam Insulated HVAC Ducts

PIR (Polyisocyanurate) foam insulated HVAC ducts are a high-performance solution for modern heating, ventilation, and air conditioning systems, offering exceptional thermal efficiency, fire resistance, and durability. These ducts consist of a composite structure, typically featuring an inner and outer layer of aluminum foil or prepainted steel sheets, sandwiching a rigid PIR foam core-a material renowned for its superior insulating properties and structural stability.

Panel Structure: Silver Alu. Foil/ PIR Foam/ Silver Alu. Foil
Foam Density: 52kg/CBM
Panel Dimension: 3950mm*1200mm*20mm
Alu. Foil: 60 Micron (Embossed)
Fire Rating: Class 0 (BS476Part 6&7)

Container Loading:
40'HQ Container:
3950*1200*20mm, 10 sheets packed in one carton, total 660sheets
2900*1200*20mm, 10 sheets packed in one carton, total 880sheets
20'GP Container: 2900*1200*20mm, 10 sheets packed in one carton, total 400sheets.

Key Features of PIR Foam Insulated Ducts

1. Outstanding Thermal Insulation
PIR foam boasts an ultra-low thermal conductivity (<0.022 W/m·K), significantly outperforming traditional materials like fiberglass or mineral wool. This minimizes heat transfer, reducing energy consumption and improving HVAC system efficiency.

2. Fire Safety and Compliance
PIR foam meets stringent fire safety standards (e.g., Class 0 per BS476 Part 6&7) , emitting low smoke and preventing flame spread. This makes it ideal for commercial and high-rise buildings with strict fire regulations.

3. Lightweight and Easy Installation
Compared to metal ducts, PIR foam ducts are lighter and prefabricated, reducing labor costs and installation time. Their modular design allows for quick assembly, shortening construction periods.

4. Moisture and Corrosion Resistance
The closed-cell structure of PIR foam resists water absorption (≤1.9%), preventing mold growth and corrosion. This extends the lifespan of ducts, even in humid environments.

5. Environmental Sustainability
PIR foam is Freon-free and uses eco-friendly blowing agents, aligning with green building standards. Its long service life reduces material waste.