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PIR Ventilation Ducts

PIR Ventilation Ducts represent a core high-performance component in modern HVAC systems. With a built-in sandwich structure of aluminum foil and rigid PIR foam core, they offer a better alternative to conventional galvanized steel ducts with field insulation. Trusted across diverse applications, they are commonly used in hotels, offices, airports, hospitals, and other commercial and public facilities.

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)

Why Choose PIR Ventilation Ducts?

Thermal insulation and low smoke, 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, PI 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.

Industrial Perspective and Application of PIR Ventilation Ducts

From an industrial application standpoint, PIR Ventilation 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 PIR Ventilation Ducts systems: tailored material selection enables precise alignment with stringent safety and performance criteria across diverse industries.