PU Aluminum Pre-insulated Duct

Thanks to its excellent products and quality services, UNT Duct is one of the leading pu aluminum pre-insulated 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.

 

If you are tired of corrosion, heavy maintenance, or thermal loss in your air conditioning and ventilation systems, it's time to upgrade to the PU Aluminum Pre-insulated Duct-the smart, efficient, and durable solution for modern HVAC projects.

 

What is it?

Simply put, this duct is a high-performance "sandwich." It consists of a rigid Polyurethane (PU) foam core, which acts as a powerful insulator, sandwiched between two layers of corrosion-resistant aluminum foil. Unlike traditional sheet metal ducts that need separate external insulation, this is a complete, ready-to-install system.

Outer Layer: Thick aluminum foil (corrosion-resistant).

Core: High-density, closed-cell Polyurethane (PU) foam (the insulator).

Inner Layer: Smooth aluminum foil (hygienic, low air resistance).

Instead of fabricating metal ducts and then wrapping them with fiberglass or rubber insulation on-site, you cut, fold, and seal this single board to form a complete duct system.

Here is the value we deliver to your business:

1. Superior Energy Efficiency

The Problem: Traditional metal ducts lose 15-30% of energy through thermal conduction.

Our Solution: The high-density PU foam has a very low thermal conductivity (as low as 0.022 W/m·K). This keeps the cold air in and the hot air out, slashing your electricity bills.

2. Ultra-Lightweight & Easy Installation

The Problem: Steel ducts are heavy, requiring heavy lifting equipment, welding, and large work crews.

Our Solution: This product is 1/10th the weight of sheet metal. You can cut it with a standard knife and assemble it with special aluminum tape or brackets. This dramatically speeds up installation, reduces labor costs, and is safer for workers.

3. No Condensation (No Sweating)

The Problem: In humid environments, cold metal ducts "sweat," causing water damage to ceilings and mold growth.

Our Solution: Because the insulation is integrated and seamless, the outer surface of the duct stays at room temperature. Zero condensation. Zero mold.

4. Built to Last in Harsh Conditions

Corrosion Resistance: Unlike galvanized iron that rusts, aluminum naturally resists moisture, chemicals, and salt air.

Strength: Despite being light, the rigid PU foam gives it high compressive strength. It doesn't sag or tear like fiberglass blankets.

5. Clean & Quiet

Air Quality: The smooth aluminum interior surface prevents dust accumulation and bacterial growth. It does not release fibers into the air.

Acoustic Comfort: The PU foam core acts as a sound barrier, absorbing the "whooshing" noise of the air handler, making your building quieter.