Name: PIP Insulation Duct Panel Suppliers and Manufacturers - China Factory - UNT Duct
Brand: UNTDuct
SKU: 306355079

Thanks to its excellent products and quality services, UNT Duct is one of the leading pip insulation duct 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.

PIP Insulation Duct Panel

PIP Insulation Duct Panel is a sandwich composite board with double-sided aluminum foil and closed-cell PIR foam core. It integrates ventilation and thermal insulation, λ≤0.022W/(m・K), B1 fire grade, 70% lighter than iron ducts. No on-site secondary insulation, widely used in commercial HVAC, clean rooms and public buildings to cut energy loss by 20%-30%.

Structure: Silver Aluminum/ PU Foam/ Silver Aluminum
Size: 4000*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)

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Fire Safety and Environmental Health of PIP Insulation Duct Panel

The core material PIR foam meets the national standard B1 level for flame retardancy, with an oxygen index of ≥32. When burning, it forms a dense carbonized layer to prevent the spread of flames, with a smoke density level of s2. It does not cause molten droplets to ignite surrounding building materials, and complies with fire safety regulations for shopping malls, hospitals, and office buildings.

Compared to PU foam B2 level combustible and phenolic board brittle and prone to powdering, PIP combines fire resistance with structural strength. Environmental testing data: No formaldehyde release, VOC organic volatile substances ≤ 6g/kg, no soluble heavy metals such as lead and cadmium, and has passed SGS clean material certification, suitable for scenarios requiring high air cleanliness such as operating rooms, laboratories, and school classrooms. The foam does not contain CFC, HCFC fluorocarbon blowing agents, with an ozone depletion coefficient of 0, meeting domestic dual-carbon and EU environmental standards, and can be given bonus points in green building evaluation.

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Construction Installation and Labor of PIP Insulation Duct Panel

The traditional iron sheet ducting involves four processes: cutting, bending, welding, and on-site insulation wrapping. For a 100㎡ duct, it requires 6 workers to complete the construction in 3 days. With PIP materials, only three steps are needed: cutting, edge folding, and sealing. For the same engineering volume, 3 workers can complete it in 1.8 days, reducing the overall construction period by 40% and lowering labor costs by 45%.

No need to carry auxiliary materials such as insulation cotton and binding straps, there is no dust pollution at the site, meeting the clean construction requirements of hospitals and food workshops. Each single sheet weighs only 12kg, and one person can handle it, making the high-altitude ceiling operation safer. The dedicated aluminum foil sealing tape and flange accessories are provided as a package. The duct's air tightness reaches the D-level standard, with the leakage volume being only 1/4 of that of the iron sheet ducting. There is no need for frequent leak repair and maintenance in the later stage, and the maintenance cost throughout the entire life cycle is reduced by 60%.

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Why choose UNTDuct

UNT Pre-insulated Ductwork

Project Case of Duct Panel

Specification

Item	Unit	Specification
Standard Panel Size	mm	3950x1200x20
Alu. Foil Thickness	mm	0.06 or 0.08
PIR Foam Density	kg/m³	50-55
Fire Safety (BS476Part 6&7)		Class 0
Thermal Conductivity	W/(m·K)	0.020
Compressive Strength	MPa	0.2
Bending Strength	MPa	2
Water Absorption	%	0.36
Dimension Change	%	0.3
Working Temperature	℃	-60 to +80
Max Pressure in duct	Pa	1500
Maximum Allowable Wind Velocity	m/s	≤15
Max Continuous Running Temperature	℃	≤70
Lifespan of PIR Air Duct	years	>20

PRE-INSULATED DUCT vs G.I. DUCTWORK

Metric	20mm PIR 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 PIR 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 PIR. 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. PIR 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 PIR, 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.

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