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Learn the step-by-step installation process of polyurethane aluminum foil composite ducts. Enhance HVAC efficiency with our 30+ years of expertise in durable, lightweight ductwork solutions.
With over 30 years of expertise in HVAC duct manufacturing, we specialize in polyurethane aluminum foil composite ducts—a superior solution for modern ventilation systems. These ducts combine excellent thermal insulation, lightweight structure, and corrosion resistance, making them ideal for commercial and industrial applications. This guide outlines the professional installation workflow to ensure longevity and peak performance.

Advantages of Polyurethane Aluminum Foil Composite Ducts

Excellent thermal insulation reduces energy loss.

Easy to handle and install, with a lifespan exceeding traditional materials.

Superior acoustic properties for quieter operations.

Reduces project timelines by up to 80% compared to conventional ducts.

Step-by-Step Installation Process

1. Material Preparation and Cutting

Begin with flat, clean work surfaces to avoid damaging the aluminum foil layer. Use precision tools to cut panels according to duct dimensions:
  • For straight ducts with sides under 1160mm, single-panel construction is suitable.
  • Larger ducts may require U-shaped, L-shaped, or four-panel splicing methods.


2. Duct Assembly and Bonding

Join panels using high-strength adhesive. For ducts with long sides ≤1600mm, 45° angle bonding is recommended. Allow assembled ducts to set vertically before handling.

3. Flange and Connector Integration

Use invisible flanges (e.g., Code 21FN01 for 20mm panels) to link duct sections. Reinforce corners with PVC clamps or steel brackets for stability. Follow these steps:
  • Insert flanges into duct ends using a rubber mallet for tight fits.
  • Align sections and secure with PVC bayonets (Code 21FN04) to prevent air leaks.
  • Seal joints with corner covers (e.g., Code 21FN05) for a polished finish.

4. Support and Hanger Installation

Install galvanized steel hangers at intervals ≤2 meters. For ducts wider than 2000mm, add steel plates (100×1.2mm) to distribute load. Avoid placing joints within walls or floors—maintain a 150mm clearance from surfaces.

5. Special Components: Elbows, Reducers, and Branches

  • Elbows: Use arc or right-angle designs with guide vanes for smooth airflow.
  • Branch Connections: Reinforce T-joints with internal supports and seal gaps with aluminum tape.

6. Quality Checks and Adjustments

  • Inspect for visible damage, misalignments, or insecure supports.
  • Use pressure tests to verify airtightness. Adjust hangers to ensure ducts are level and stable.

Why Choose Our Ducts?

Our products comply with international standards and are backed by three decades of innovation. We provide:
  • Customized duct designs for complex layouts.
  • Comprehensive technical support and installation guides.
  • Sustainable materials with low environmental impact.
 

Conclusion

Proper installation maximizes the benefits of polyurethane aluminum foil composite ducts—efficiency, durability, and cost savings. Partner with us to leverage our expertise for your next HVAC project.
Contact us today for tailored solutions and technical documentation!