PIR Air Conditioning Ducts

Thanks to its excellent products and quality services, UNT Duct is one of the leading pir air conditioning ducts 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 Ducts are a key high-performance solution for modern HVAC systems. Constructed as an integrated sandwich with aluminum foil facings and a rigid PIR foam core, they outperform traditional galvanized steel ducts that require on-site insulation. Ideal for a wide range of projects, these ducts are widely specified for hotels, office buildings, airports, hospitals, and other commercial and public buildings.

 

This design combines the structural duct, thermal insulation, and a vapor barrier into one lightweight board, simplifying the overall system. Standard technical specifications for these panels often include:

 

Core Density: ~53 kg/m³

Thermal Conductivity: ≤ 0.022 W/m·K (providing excellent insulation)

Standard Thickness: 10-40mm

Common Sizes: 1200mm width * 3950mm length

Fire Rating: Meets international standards like BS 476 Class 0 and ASTM E84 Class A due to the flame-retardant PIR core

 

Energy Efficiency & Thermal Performance

Thanks to the low thermal conductivity of the PIR core, heat gain and heat loss are effectively minimised. This delivers considerable energy savings while preventing condensation formation on duct surfaces.

Lightweight Construction

These panels are substantially lighter than conventional galvanized iron (GI) and steel ductwork. They reduce structural loads on buildings and simplify logistics, transportation and on-site handling.

Streamlined, Efficient Installation

Unlike metal ducts, which undergo separate fabrication, wrapping and insulation procedures, pre-insulated panels enable one-step installation. This greatly shortens overall construction schedules.

Excellent Airtightness

The integrated panel system, particularly when fitted with tongue-and-groove joints, achieves outstanding airtight performance with air leakage frequently below 2%. Tight sealing is essential to sustain HVAC system efficiency and preserve indoor air quality.

Long-Term Durability & Hygienic Properties

The smooth aluminium foil facing offers corrosion resistance, easy cleanability and hygienic performance, well-suited for hospitals, cleanrooms and similar sensitive environments. It inhibits dust accumulation as well as mould and bacterial growth to improve indoor air quality. The duct system boasts a long service lifespan of 20–30 years with minimum maintenance requirements.

From an industrial application standpoint, PIR Air Conditioning Ducts are not merely a standalone product, but a customisable solution segmented according to project requirements. Within the commercial marketplace, leading brands including SOLIMIDE foam adopt clear tiered grading for different application scenarios:

 

Aerospace Grade (e.g. AC-550 / AC-530) Designed for aircraft fuselage and air conditioning ductwork, compliant with the most rigorous airworthiness standards.

 

Marine & Industrial Grade (e.g. TA-301) Applied to naval ventilation ducts and HVAC systems for rail vehicles, satisfying military specifications including MIL-DTL-24688.

 

High-Temperature Grade (e.g. HT-340) Ideal for high-temperature pipelines, ovens and other environments with operating temperatures up to 300°C.

Such tiered classification highlights the core value of PI foam duct systems: tailored material selection enables precise alignment with stringent safety and performance criteria across diverse industries.