Thanks to its excellent products and quality services, UNT Duct is one of the leading pu insulation board 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.
PU Insulation Board Duct
With high-performance PU foam serving as its core substrate, PU Insulation Board Duct are lightweight composite components. Uniting thermal insulation performance, mechanical stability and certified fire protection in a single integrated structure, they enjoy extensive use across HVAC construction projects.
Adopting a modular all-in-one design, this duct solution lowers system energy waste, shortens on-site assembly time, and maintains reliable ventilation efficiency over prolonged operation.
Structure: Silver Aluminum foil/ PU Foam/ Silver Aluminum foil
Size: 3950*1200*20mm
Foam Density: 40-45kg/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)
Outstanding Thermal Insulation & Ultra Energy Saving of PU Insulation Board Duct
Outstanding Thermal Insulation & Ultra Energy Saving is one advantage of PU Insultaion Board Duct.
Ultra-low thermal conductivity: only 0.018–0.020 W/(m·K), far better than glass wool, XPS ,etc. An 20mm PU panel delivers insulation equal to 50mm glass wool.
High closed-cell rate (>96%) eliminates thermal bridges, restricts heat gain/loss of conditioned air.
Cuts HVAC power consumption by 20–30%, greatly reduces long-term electricity operating costs for commercial buildings.
Integral one-piece insulation avoids extra wrapping work required for metal ducts.
How to make straight PU Insulation Board Duct ?
Step 1 - Tracing: Lay out and mark the duct profile precisely on the pre-insulated panel.
Step 2 - Cutting: Cut the panel along the marked lines using hand cutting equipment, and mill 90° V-grooves into the panel substrate.
Step 3 - Gluing: Apply glue to the cutting surfaces of the panels.
Step 4 - Folding: After full adhesive curing, fold the panel segments together to fabricate straight duct sections.
Step 5 - Taping: The tape is applied only to the external seams of the duct where the sides of the panel were joined for air-tightness.
Step 6 - Flanging: Bond and secure steel angle brackets first, then fit concealed PVC or aluminium flanges to the duct ends.
Step 7 - Reinforcement: reinforce the duct with an aluminum reinforcement bar and G.I. Shaped disks, if necessary.
Step 8 - Sealing: Once duct assembly is finished, apply silicone sealant to fully seal all internal joints for zero air leakage.
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