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

The Future of Air Distribution: Introducing Phenolic Pre-insulated HVAC Panels

Headline: Deliver Superior Air Quality and Slash Energy Costs-Without the Heavy Lifting

The Problem:
Traditional sheet metal ductwork is heavy, labor-intensive to install, and prone to thermal loss. Over time, it can also become a breeding ground for mold and bacteria, compromising indoor air quality.

The Solution:
Our Phenolic Pre-insulated HVAC Panels are a next-generation alternative. These rigid, lightweight composite panels feature a closed-cell phenolic foam core sandwiched between two layers of reinforced aluminum (or coated metal).

Structure: Silver Aluminum/ Phenolic Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 50kg/m3
Aluminum Thickness: 0.06mm
Packing: 10 sheets/ package
Loading Capacity: 660 sheets/ 40'HQ (packed with cardboard box)

Thermal Conductivity: 0.025w/m.k

Fire Safety: Class 0 (BS 476 Part 6&7)

Why Switch to Phenolic Duct Panels?

1. Ultimate Energy Efficiency
Unlike metal ducts that require external wrapping, our panels have a built-in insulation layer with exceptionally low thermal conductivity. This minimizes air leakage and thermal bridging, reducing HVAC energy consumption by up to 20-30%.

2. Breathe Cleaner Air
Phenolic foam is inherently resistant to moisture and microbial growth. It does not provide a food source for mold, mildew, or bacteria. Additionally, the smooth inner surface prevents dust accumulation, ensuring healthier indoor air quality-critical for hospitals, schools, and office buildings.

3. Significant Cost & Labor Savings

Lightweight: One person can carry what used to require a team.

Fast Assembly: Cut, groove, and fold on-site with simple hand tools. No heavy machinery, no external insulation wrapping.

Lower Freight Costs: Up to 80% lighter than steel ducts.

4. Fire Safety First
Phenolic materials are inherently fire-resistant. They meet stringent global standards (e.g., ASTM E84, BS 476 Part 6&7) with low smoke emission and zero flame spread. In a fire, they do not produce dripping or flaming particles.

5. Quiet & Durable
The dense foam core acts as a natural sound attenuator, reducing vibration and "duct rumble." The aluminum facings resist corrosion and are chemically inert, lasting the life of the building.