Name: PUR Air Conditioning Duct Panels Suppliers and Manufacturers - China Factory - UNT Duct
Brand: UNTDuct
SKU: 311805573

Thanks to its excellent products and quality services, UNT Duct is one of the leading pur air conditioning duct panels 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.

PUR Air Conditioning Duct Panels

Built around high-performance PU foam core, our PUR Air Conditioning Duct Panels are lightweight composite materials. Combining superior thermal insulation, robust mechanical strength and official fire-rated performance in a single structure, they are a versatile choice for all HVAC construction applications.

Thanks to its modular and all-in-one design, this duct solution reduces overall energy consumption, greatly boosts on-site installation efficiency, and keeps ventilation running stably for years to come.

Structure: Silver Aluminum/ PU Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 40-45kg/m3
Aluminum Thickness: 0.06mm or 0.08mm
Packing: 10 sheets/ package
Loading Capacity: 710 sheets/ 40'HQ (packed with plastic bags)
660 sheets/ 40'HQ (packed with cardboard box)

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Performance Characteristics of PU Pre Insulated Panel

Excellent Thermal Insulation: With a low thermal conductivity of 0.02W/(m・K), it effectively reduces heat transfer and lowers building energy consumption.

Good Sound Insulation: The closed-cell polyurethane foam can absorb and block sound, reduce noise pollution, and create a quiet indoor environment.

Lightweight yet High-Strength: Significantly lighter than traditional materials such as concrete and masonry, while possessing high strength and rigidity for easy handling and installation.

Waterproof and Moisture-Resistant: Polyurethane foam itself has excellent water resistance; combined with surface layer protection, it effectively prevents moisture penetration and avoids mold and decay.

Fire Resistance: After special treatment, it has certain fire resistance capabilities, which can delay the spread of fire and improve the fire safety level of buildings.

Easy Installation: Adopting a modular design, panels can be quickly spliced through dedicated connection methods, greatly shortening the construction period.

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Our Honor & certificate

Since its establishment in 2013, UNT has obtained 17 patents and earned numerous industry honors. We are also certified to the ISO 9001, ISO 14001, and ISO 45001 international management standards.

December 2020: Awarded the National High-Tech Enterprise Certificate and the Fujian Provincial High-Tech Enterprise Certificate

December 2023: Awarded the National High-Tech Enterprise Certificate and the Fujian Provincial High-Tech Enterprise Certificate

November 2024: Listed in the Fujian Provincial List of Specialized, Refined, Differentiated and Innovative Small and Medium-Sized Enterprises

UNTDuct ISO 9001 2015

UNTDuct ISO 14001 2015

UNTDuct ISO 45001 2018

Fire Safety GB 8624-2012

Fire Safety BS476 Part6&7

Fire Safety ASNZS 1530.3

Thermal Conductivity

PID Panel Physical Property

Why choose UNTDuct

UNT Pre-insulated Ductwork

Packaging and Loading

Packing

PRE-INSULATED DUCT vs G.I. DUCTWORK

Metric	20mm PU Pre - Insulated Duct (with 0.08mm Alu. Foil, )	0.5mm G.I Duct + 30mm Rubber Plastic (40-90kg/m³)
Fire Safety	Compliant (Class 0/BS 476, AS 1530.3). Self-extinguishing PU core, low toxic smoke, non-combustible alu foil.	G.I non-combustible; rubber plastic fire-retardant but requires coating to meet strict codes.G.I
Thermal Insulation	Excellent. λ=0.020 W/m·K, no thermal bridging. 20mm integrated structure ensures consistent insulation.	Fair. λ=0.035 W/m·K, thermal bridging at G.I joints. 30mm insulation offset by metal conductivity.
Hygiene & Air Quality	Superior. Non-porous alu foil, smooth inner surface, moisture-resistant PU. Meets cleanroom/hospital standards.	Poor. Porous rubber plastic traps dust/mold; G.I-insulation gaps breed pathogens.
Lightweight	1.4-1.5 kg/m². Ultra-light, reduces structural load; ideal for retrofits/timber-framed buildings.	5.1–6.3 kg/m². Heavy G.I base + bulk insulation; requires reinforced supports.
Energy Efficiency	Excellent. 20–30% lower HVAC energy consumption. Minimizes heat gain/loss in conditioned air.	Low. 20–30% higher energy loss due to inferior insulation and thermal bridging.
Ease of Construction	Easy. Factory-prefabricated tongue-and-groove joints. No separate insulation step; 40–60% less labor time.	Complex. Two-step on-site process: G.I duct fabrication + rubber plastic wrapping. Labor-intensive, prone to gaps.
Quiet Operation	Good. PU core absorbs 10–15 dB airflow noise; alu foil dampens vibration.	Fair. Rubber plastic provides basic sound reduction, but G.I vibration and insulation gaps reduce efficiency.
Space Savings	Excellent. 20mm total thickness (all-in-one). Fits tight ceilings/retrofit cavities.	Poor. 30.5mm total thickness (0.5mm G.I + 30mm insulation). Bulky, requires larger installation space.
Environmental Friendliness	Balanced. CFC/HCFC-free PU, recyclable alu foil. 20–30-year lifespan; net carbon positive in 1–3 years.	Low. Rubber plastic non-recyclable; 10–15-year lifespan. Frequent replacement increases waste; higher energy emissions.
Air Leakage	Superior. ≤2% air leakage (EN 1507, AS/NZS 3660.1). Airtight factory joints + alu foil vapor barrier.	Poor. 5–10% air leakage. On-site sealing gaps; separate vapor barrier required.

Performance comparison based on UNT Duct product data and standard system configurations. Actual performance may vary depending on system design, installation method and project conditions.

How To Make PU Pre-insulated Straight Duct

Step 1 - Tracing: outline the duct shapes on the panel.

Step 2 - Cutting: Using manual cutting tools, cut along the panel edges and create 90 degree "V" grooves on the panel.

Step 3 - Gluing: Apply glue to the cutting surfaces of the panels.

Step 4 - Folding: After the glue is cured, fold the sides toward each other to form the straight duct.

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: After applying glue and positioning the steel angle bracket, process to fit the PVC or aluminum invisible flanges.

Step 7 - Reinforcement: reinforce the duct with an aluminum reinforcement bar and G.I. Shaped disks, if necessary.

Step 8 - Sealing: After the duct is assembled, seal all internal joints hermetically with silicone.

Need the complete fabrication solution?
UNT Duct supplies PU duct panels, fabrication tools, jointing accessories, reinforcement components and related materials for complete pre-insulated duct fabrication.