Name: PUR Air Conditioning Duct Boards Suppliers and Manufacturers - China Factory - UNT Duct
Brand: UNTDuct
SKU: 311918781

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

With high-performance PU foam serving as its core substrate, PUR Air Conditioning Duct Boards 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.

Panel Structure: Aluminum foil/ PUFoam / Aluminum foil
Foam Density: 40-45kg/M3
Panel Dimension: 3950mm*1200mm*20mm
Alu. Foil: 60 Micron (Embossed)

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)

Send Inquiry

Quick installation and low maintenance costs of PUR Air Conditioning Duct Boards

Quick installation

Compared with the complex process of traditional Air ducts that require on-site cutting, welding and wrapping of insulation layers,PIR Composite Duct Panels adopts a modular design. It can be prefabricated into standard sections or special-shaped parts according to the construction drawings and spliced on-site with special connectors. The installation efficiency is increased by more than 50% and the construction period is shortened.

Low maintenance costs

The surface of the board is smooth and flat, which is not easy to accumulate dust and reduces the frequency of cleaning inside the air duct. Moreover, it has excellent anti-aging performance. Under normal usage conditions, its service life can reach over 20 years, and the later maintenance cost is only one fourth of that of traditional air ducts.

Send Inquiry

Application field of PUR Air Conditioning Duct Boards

1.1. Public buildings: Applicable to airport and railway station waiting halls, stadiums, theaters, exhibition halls, etc.

These buildings have large Spaces and high requirements for the lightness, insulation, fire resistance, water resistance, sound insulation and durability of the panels. Polyurethane sandwich panels can meet these demands.

1.2. Industrial plants and warehouses: Due to their advantages such as light weight, efficient installation, and flexible layout, they have become the first choice for single-story factories.

In multi-story industrial plants, it can not only be used for the roof but also for the flexible layout of the exterior walls, and the appearance of the building can be beautified through the diverse colors and shapes of the color-coated steel sheets.

For industrial buildings with constant temperature and humidity requirements, its excellent thermal performance can reduce operating costs.

Send Inquiry

Why choose UNTDuct

UNT Pre-insulated Ductwork

Project Case of UNTDuct

Project Case

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.

Contact now

Hot Tags: pur air conditioning duct boards, China, suppliers, manufacturers, factory, customized