Thanks to its excellent products and quality services, UNT Duct is one of the leading pre-insulated pu hvac duct manufacturers and suppliers in China. Welcome to buy the high quality and customized products from our factory. We will offer you the best service and fast delivery.
Pre‑insulated PU HVAC Duct: Efficient and Sustainable Air Distribution Solution
Pre-insulated PU HVAC Duct is an integrated prefabricated HVAC air distribution system, combining thermal insulation, airtightness and structural stability. It is widely used in commercial, residential and industrial green buildings for its energy efficiency and easy installation.
Panel Structure: Sandwich Panel (Alu. Foil+PIR Foam+Alu. Foil)
PIR Density: 52kg/cbm
Standard Dimension: 3950mm*1200mm*20mm
Alu. Foil thickness: 0.06mm (Embossed)
Packing: 10 sheets/ Cardboard box
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.

Compared with G.I. Duct, why choose Pre‑insulated PU HVAC Duct ?

Compared with traditional G.I. (Galvanized Iron) Ducts, Pre-insulated PU HVAC Duct has obvious advantages:
• Superior Energy Efficiency: Integrated PU foam core (0.020W/(m·K)) avoids insulation gaps of G.I. Ducts, cutting HVAC energy consumption by 20%–30%.
• Lightweight & Faster Installation: 70% lighter than G.I. Ducts, no on-site insulation needed, saving 40%–60% installation time and labor costs.
• Better Moisture Resistance: Closed-cell PU foam (water absorption ≤0.1%) prevents condensation and rust, unlike G.I. Ducts prone to such issues.
• More Hygienic: Smooth aluminum surface resists dust/bacteria (easy to clean), meeting cleanroom standards that G.I. Ducts rarely satisfy.
• More Durable: No rust/deformation, 20–50 years service life (far longer than G.I. Ducts) with minimal maintenance.
• Superior Sound Damping: PU foam absorbs noise/vibration, quieter than G.I. Ducts which amplify noise.
Application of Pre‑insulated Polyurethane (PU) HVAC Duct
With excellent comprehensive performance, Pre-insulated PU HVAC Duct is widely used in various fields:
- Commercial Buildings: Office towers, shopping malls, hotels, airports, railway stations and stadiums (prioritizing energy efficiency and comfort).
- Residential Complexes: High-rise apartments, villas and residential communities with central air conditioning (providing comfortable, energy-saving environments).
- Hygiene-Sensitive Areas: Hospitals, operating rooms, pharmaceutical labs, food processing plants and cleanrooms (meeting strict hygiene standards).
- Special Environments: Cold storage, data centers, basements and coastal buildings (requiring moisture resistance, thermal stability and durability).
With the growing demand for energy conservation and green construction, Pre-insulated PU HVAC Duct will play a more important role in sustainable urban development and low-carbon construction.

How are Pre‑insulated Polyurethane (PU) HVAC Duct Panels Produced?

1. PU Raw Material Mixing

2. Aluminum Foil Embossing

3. PU Foam Injection

4. pU foaming & Laminating

5. pU Pre-insulated duct Cutting

6. duct panel Auto-stacking

7. Packing of Pre-insulated Duct

8. Stocking of pre-insulated duct
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