Introduction of PIR Pre-insulated Ducts
UNTDuct PIR System goes beyond just PIR Pre-insulated Ducts, encompassing related accessories, specialized tools and professional expertise that are essential for achieving expert-level construction and installation. The UNTDuct Panel is a sandwich panel with an outer layer of aluminum foil, enclosing a closed-cell insulating material-polyisocyanurate (PIR) foam-with a density of up to 55 kg/m³.
Panel Structure: Silver Alu. / Blue PIR Foam / Silver Alu. Foil
Foam Density: 50kg/Cbm
Panel Dimension: 3950mm*1200mm*20mm
Alu. Foil: 0.06mm (Embossed)
Packing: 10 Sheets/ Cardboard Box
UNTDuct PIR Pre-insulated Duct owes its ability to deliver extremely high-quality ducting to the exceptional insulation properties of PIR foam. It also ensures excellent indoor air quality, features a refined external finish, uses long-lasting materials, and is lightweight, allowing for easy transportation, handling and installation.
Ducting systems built with UNTDuct PIR Pre-insulated Duct can be installed either inside or outside a building, whether exposed or concealed by a false ceiling, and are suitable for both residential and commercial applications.
Additionally, UNTDuct PIR Pre-insulated Duct is an outstanding option for industrial fields such as food processing, electronics, pharmaceuticals, hospitals and medical centers, etc., where a high level of quality and hygiene must be maintained.
Packaging & Shipping
are typically packed in cardboard boxes, with specifications as follows:
40'HQ Container:
Sizes: 3950×1200×20mm or 2900×1200×20mm
Packaging: 10 sheets per cardboard box
Total quantity: 660 sheets (for 3950mm size) / 880 sheets (for 2900mm size)
20'GP Container:
Size: 2900×1200×20mm
Packaging: 10 sheets per cardboard box
Total quantity: 400 sheets
FAQs of PIR Pre-insulated Ducts
1. How does PIR pre-insulated duct contribute to energy savings?
PIR foam's low thermal conductivity reduces heat loss/gain during air distribution. Unlike poorly insulated ducts, it better maintains airflow temperature, easing HVAC workload and cutting energy use-saving up to 30-40% vs. traditional ducts in some cases.
2. Are PIR pre-insulated ducts fire-resistant?
Yes. PIR foam forms a char layer when exposed to fire, blocking flame spread. It meets high fire standards (e.g., Class 0 per BS 476 Part 6&7), suiting fire-critical spaces like hospitals, schools, and high-rises.
3. How do PIR pre-insulated ducts affect indoor air quality?
Their smooth, aluminum-lined inner surface resists dust buildup, while the closed-cell PIR foam prevents mold growth. This ensures cleaner air distribution, boosting indoor air quality.
4. How do I install PIR pre-insulated ducts?
Follow manufacturer guidelines: cut to size, join with flanges/section bars, and seal joints tightly using specialized tools (e.g., precision cutters, high-quality adhesives). Installation can be prefabricated off-site or done on-site, depending on project needs.
Specification of PIR Pre-insulated Ducts
|
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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