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PIR HVAC Air Ducts
PIR HVAC Air Ducts are a primary high-performance solution utilised within modern HVAC systems. Manufactured as an integral sandwich assembly clad with aluminium foil facings and incorporating a rigid PIR foam core, they exhibit better performance than standard galvanised steel ducts which require insulation installation on site. Applicable to diverse engineering projects, such duct panels are frequently selected for hotels, office buildings, airports, hospitals and additional commercial and public buildings.
Panel Structure: Silver Alu. / Blue PIR Foam / Silver Alu. Foil
Foam Density: 52kg/cbm
Panel Dimension: 3950mm*1200mm*20mm
Alu. Foil: 0.06mm (Embossed)
Packing: 10 sheets/ Cardboard box

How does the PIR HVAC Air Ducts contribute to reducing energy consumption?

1.High-density rigid PIR foam core delivers superior thermal insulation, effectively blocking heat penetration and cutting heat/cold loss in air circulation.
2. Double-sided aluminum foil forms fully sealed structure with excellent airtightness, drastically reducing air leakage loss.
3. Stable insulation performance lightens the running load of air conditioning units, lowering frequent startup and power consumption.
4. It avoids extra heat compensation needed for traditional ductworks, stabilizing system operation efficiency all year round.
5. Overall optimized ventilation performance greatly reduces long-term operational energy costs for HVAC projects.
FAQ of PIR HVAC Air Ducts
Q: Do these ducts sweat or cause condensation?
A: No, if properly designed and installed. Because the PU foam core has excellent thermal properties, it keeps the outer surface temperature close to room temperature, preventing it from reaching the dew point. This eliminates the need for separate vapor barriers or additional insulation wrapping required for bare metal ducts.
Q: How are the ducts joined together?
A: The most common method is the Flange System. Aluminum channels (flanges) are clipped onto the edges of the cut duct panels. The corners are secured with plastic or metal corner pieces. The sections are then bolted together, often with a foam or rubber gasket between them to ensure an airtight seal.
Q: Can PIR HVAC Air Ducts be used for high-pressure HVAC systems?
A: PIR HVAC Air Ducts are rigid and structurally strong, but they are most commonly used in low to medium pressure systems (typically up to 2,000 Pa static pressure). For very high-pressure applications (common in large commercial or industrial settings), reinforced panels (with steel facings) or traditional sheet metal are generally recommended.
PIR HVAC Air Ducts




Specification of PIR ALU Pre-insulated Duct
|
Item |
Unit |
Specification |
|
Panel Structure |
|
Alu./ PIR Foam/ Alu. |
|
Standard Panel Size |
mm |
3950*1200*20 |
|
Alu. Foil Thickness |
mm |
0.06 |
|
Foam Density |
kg/m3 |
48 |
|
Thermal Conductivity |
w/m.k |
0.022 |
|
Compressing Strength |
Mpa |
0.2 |
|
Bending Strength |
Mpa |
2 |
|
Water Absorption |
% |
0.36 |
|
Dimension Change |
% |
0.3 |
|
Working Temperature |
℃ |
-100 to +80 |
|
Maximum Allowable Wind Velocity |
m/s |
≤12 |
|
Continuous Running Maximum Temperature |
℃ |
≤70 |
|
Lifespan of PIR Air Duct |
years |
>20 |
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