Name: PIR Air Conditioning Duct Board Suppliers and Manufacturers - China Factory - UNT Duct
Brand: UNTDuct
SKU: 308495889

Thanks to its excellent products and quality services, UNT Duct is one of the leading pir air conditioning duct board 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 Conditioning Duct Board

What is PIR Air Conditioning Duct Board Made Of?

PIR Air Conditioning Duct Board are engineered as sandwich panels consisting of three core components:

Aluminum Facings

Both inner and outer surfaces are laminated with aluminum foil or solid aluminum sheets, delivering a smooth, hygienic and corrosion-resistant surface. Standard indoor-grade aluminum foil ranges from 60 to 80 microns in thickness. For heavy-duty service or outdoor installations, thicker aluminum sheets or additional protective coatings are available as optional solutions.

Polyisocyanurate (PIR) Foam Core

The core substrate is rigid polyisocyanurate foam, serving as the primary thermal insulation layer. Its dense closed-cell structure grants the panels excellent water resistance and consistent acoustic insulation capabilities.

Eco-Friendly Foam Formulation

This PIR foam is manufactured without ozone-depleting blowing agents including CFCs and HCFCs, in full compliance with international environmental regulations.

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Construction Efficiency and Cost of PIR Air Conditioning Duct Board

Integrated prefabricated panels allow one-stage cutting and assembly, effectively shortening construction schedules:

Labor Efficiency Metrics

When fabricating an equal area of ductwork, traditional galvanized steel duct systems involve subsequent external insulation procedures, with a daily output of 18 m² per worker. PIR pre-insulated panels are assembled directly on-site, reaching a daily output of 30 m² per worker. Accordingly, installation time is reduced by 40%–60%, and labour costs drop by 45%.

Full-Lifecycle Cost Breakdown

Despite higher unit costs for the panels compared to galvanized steel sheets, expenses for secondary insulation, damp-proof membranes and abundant hangers are eliminated. The total cost of the complete duct system is equivalent or up to 8% lower.

Transportation Merits

Foldable packaging maximises cargo utilisation, lifting vehicle loading volume by 2.3 times and cutting domestic and marine logistics expenditure by 50%. Such logistics advantages stand out for overseas projects executed under DAP Incoterms.

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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

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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