Name: PIR Air Conditional Panels Suppliers and Manufacturers - China Factory - UNT Duct
Brand: UNTDuct
SKU: 308554610

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

PIR Air Conditional Panels

PIR Air Conditional Panels represent a high-performance core solution for contemporary HVAC systems. Featuring an integrated sandwich structure with aluminium foil facings and a rigid PIR foam core, they deliver superior performance compared to conventional galvanised steel ducts that demand on-site insulation treatment. Suited for an extensive variety of projects, these duct panels are commonly specified for hotels, office complexes, airports, hospitals, as well as other commercial and public facilities.

Core Material: Rigid polyisocyanurate (PIR) foam featuring a high closed-cell ratio (generally over 90%).

Facings: Both surfaces are laminated with reinforced aluminium foil, fiberglass scrim or other vapour retarder layers to deliver enhanced durability, thermal reflectivity and a smooth airflow surface.

Available Thickness: 10 mm, 20 mm, 25 mm, 30 mm, 40 mm

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Why Choose PIR Air Conditional Panels?

Thermal Insulation, Low Smoke Emission and Low Toxicity

When it comes to fire safety, PIR foam features intrinsic flame-retardant characteristics. Its Limiting Oxygen Index (LOI) generally exceeds 34%, greatly outperforming the criteria for most conventional flame-resistant materials.

Outstanding Acoustic & Thermal Insulation

PIR foam adopts an open-cell structure with an open-cell ratio reaching up to 99%. This delivers remarkable sound absorption performance, achieving a Noise Reduction Coefficient (NRC) of up to 0.54 across the 125–4000 Hz frequency band. It effectively mitigates airflow noise and equipment operational noise within HVAC systems. Moreover, its thermal conductivity stands below 0.022 W/(m·K), offering dependable thermal insulation while maintaining low weight.

Ultra-Low Outgassing and Superior Chemical Stability

Under vacuum conditions, volatile emissions from materials pose contamination risks to precision instruments. Benefiting from ultra-low outgassing performance, PIR foam is extensively applied in aerospace and semiconductor cleanroom settings. Furthermore, it resists corrosion from weak acids, weak alkalis and common oils including 93# gasoline, showcasing robust chemical stability.

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Service Life, Environmental Protection and Hygiene of PIR Air Conditional Panels

Durability Performance Indicators

Benefiting from the stable cyclic macromolecular structure of PIR foam in PIR Air Conditional Panels, its thermal conductivity variation is controlled within a maximum increase of 5% across 25 years, with a rated service life of 20–25 years. By contrast, galvanized steel ducts develop corrosion and air leakage after 5–8 years, and rock wool will pulverise and lose its insulating function within 5 years. The overall life-cycle replacement cost can be lowered by 70%.

Environmental Test Outcomes

No harmful substances such as formaldehyde or benzene are released, and asbestos is absent from the formulation. The material loss rate during foaming production stands at only 3%, and residual scraps are recyclable for secondary manufacturing. The product meets requirements to gain bonus credits for LEED certification and China Three-Star Green Building Evaluation.

Cleanliness Characteristics

The smooth antibacterial aluminium foil cladding on both sides reduces internal air flow resistance by 12% and inhibits dust accumulation and mould growth. It is applicable to purified ventilation systems for food factories and surgical operating rooms. Extra antibacterial inner lining coating is unnecessary, resulting in zero additional consumable costs for clean system construction.

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Why choose UNTDuct

UNT Pre-insulated Ductwork

Project Case of UNT Ductwork

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
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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