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Introduction of PUR Pre-insulated Duct
PUR Pre-insulated Duct is a high-efficiency composite duct product specially developed for modern HVAC systems. It features a rigid polyurethane (PUR) foam as the core insulation layer, integrated and prefabricated with double-sided protective facings, eliminating the need for on-site secondary insulation construction.
Internal Use:
Panel Structure: Silver Alu. / PU Foam / Silver Alu.
Foam Density: 50kg/m3
Panel Dimension: 3950mm*1200mm*20mm
Alu. Foil Thickness: 60 or 80 microns (smooth or embossed)
Packing: 10 sheets/ package
What are the key features and benefits of PUR Pre-insulated Duct
Compared with traditional steel ducts (requiring additional insulation like glass wool), PUR pre-insulated ducts offer prominent advantages in energy efficiency, construction, safety and maintenance, fully meeting the operational needs of modern buildings:
1. Ultimate energy efficiency, lower operating costs
The PUR foam core features low thermal conductivity and a high closed-cell rate, delivering far superior insulation performance than traditional solutions. It reduces heat and cold loss in ducts, lowers the operating load of HVAC systems, and cuts electricity costs significantly in the long run. Its smooth inner wall minimizes air resistance, further reducing fan energy consumption and aligning with low-carbon trends. The product uses CFC and HCFC-free foaming agents, achieving both environmental protection and energy efficiency.
2. Prefabricated design, efficient & convenient construction
Factory standardized prefabrication ensures high dimensional accuracy (standard sizes: 3950/2950/2900120020mm, customizable). No on-site secondary insulation or anti-corrosion treatment is needed-installation is simply done by splicing with special accessories, improving construction efficiency, shortening project timelines and reducing labor costs. Lightweight for easy handling and hoisting, it is ideal for high-rises, long-span buildings and narrow spaces. On-site cutting only requires basic tools, with low noise and minimal dust, causing little impact on the construction environment.
3. Multi-layer protection, safe & durable
✅ Superior fire resistance: The inherently flame-retardant PUR foam reaches B1 fire rating after special treatment, and some variants meet relevant fire safety standards. It carbonizes rapidly when exposed to fire to form a protective layer, preventing flame spread with low smoke and no toxic fume emission.
✅ Moisture & mold resistance: The high closed-cell core has a water absorption rate of ＜0.3%. Combined with moisture-proof facings, it blocks water vapor, avoids dampness and condensation, and inhibits bacterial and mold growth-suitable for humid and hygiene-sensitive areas.✅ Long service life: Corrosion and impact-resistant facings, plus an anti-aging, non-deformable core, ensure a lifespan of over 20 years. Minimal maintenance is required: just regular checks on joint sealing and facing integrity, plus gentle inner wall cleaning.
4. Noise reduction, enhanced comfort
The PUR foam boasts excellent sound absorption and insulation properties, effectively blocking airflow and vibration noise from ducts. It reduces noise by 10-15dB compared with traditional steel ducts, creating a quiet environment ideal for noise-sensitive scenarios such as hotels, hospitals and offices.
5. Compliant & eco-friendly, versatile applicability
Manufactured in accordance with ISO 9001 and other quality systems, the product is suitable for direct use in hygiene-grade areas including food processing, medical facilities and clean rooms. Customizable in size, thickness and facing material, it adapts to different temperature conditions (max operating temperature: 70℃) and meets the HVAC system needs of all types of buildings.
Project Case of PUR Pre-insulated Duct
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