Name: PIR PID Panel Suppliers and Manufacturers - China Factory - UNT Duct
Brand: UNTDuct
SKU: 312983329

Thanks to its excellent products and quality services, UNT Duct is one of the leading pir pid 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.

PIR PID Panel

PIR PID Panel is composite panel developed for the fabrication of pre-insulated HVAC ductwork. A rigid PIR foam core is laminated between two aluminum facings, combining insulation and duct construction in one panel.

The panel can be traced, cut, grooved, folded and assembled on site to form straight ducts, elbows, reducers, branches and other duct sections according to project requirements. Proper jointing, reinforcement and sealing are used to achieve the required strength and air tightness of the finished duct system.

The integrated construction can reduce the number of separate fabrication and insulation steps compared with conventional sheet-metal ductwork with external insulation, helping contractors streamline installation on site.

Structure: Silver Aluminum/ PIR Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 50-55kg/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 Resistance and Moisture Resistance of PIR PID Panel

Fire Resistance Class: Euroclass B-s2,d0 (for some models C-s2,d0), non-flammable, low smoke, no dripping.

Combustion Characteristics: When exposed to fire, it chars but does not melt, the smoke is low in toxicity, and complies with EN 13501-1 and HVAC duct safety standards.

Application Safety: Suitable for densely populated places such as shopping malls, hospitals, and office buildings, and has passed FM and CE certifications.

Moisture Resistance and Durability

The closed-cell structure of PIR foam helps limit moisture absorption and maintain thermal insulation performance in humid environments. The aluminum facings also provide a protective surface for the panel core.

Proper jointing and sealing are important for maintaining the thermal and moisture-control performance of the completed duct system.

For applications with specific humidity, hygiene or environmental requirements, panel configuration and installation details can be discussed according to the project specification.

Corrosion resistance: Aluminum foil is resistant to oxidation and acid-base, PIR core is resistant to aging, with a service life of ≥ 20 years, maintenance-free, twice as long as traditional ducts in terms of lifespan.

Surface and Hygiene

The smooth aluminum-facing surface is easy to clean and suitable for HVAC applications where surface hygiene and maintenance are important, including healthcare, cleanroom and food-processing environments, subject to the applicable project requirements.

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Why choose PIR PID Panel?

01.

High air tightness and performance reliability

Air leakage is the main inefficiency problem of HVAC systems, which wastes energy and reduces indoor air quality.

Factory sealed joints: The high-quality panel design features airtight connections (such as glued edges or mechanical locks), with an extremely low air leakage rate. Proper fabrication and sealing are important for achieving the required air tightness of a pre-insulated duct system. The integrated panel construction can simplify jointing and reduce the number of separate insulation steps during installation.

02.

Durability and long-term effectiveness

Structural integrity: The outer protective surface (such as aluminum foil, galvanized steel plate or reinforced foil) protects the insulation core material from physical damage, corrosion or pest infestation.

Environmental stress resistance: Many PID boards undergo moisture-proof treatment (such as hydrophobic foam core) and chemical stability optimization to ensure performance in humid, industrial or coastal environments.

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Why choose UNTDuct

A Complete Duct Fabrication Solution
UNT Duct provides PIR panels along with the tools, profiles, jointing materials and reinforcement components required for pre-insulated duct fabrication.

UNT Duct Panel

FAQ of PIR Duct Board

FAQ of PIR Duct

Specification

Item	Unit	Specification
Standard Panel Size	mm	3950x1200x20
Alu. Foil Thickness	mm	0.06 or 0.08
Foam Density	kg/m³	50-55
Fire Safety (BS476Part 6&7)		Class 0
Thermal Conductivity	W/(m·K)	0.020
Compressing 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.

How To Make PIR 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 PIR duct panels, fabrication tools, jointing accessories, reinforcement components and related materials for complete pre-insulated duct fabrication.

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