During tunnel construction, the installation efficiency of ventilation duct directly affects the project progress. Our collapsible tunnel ventilation ducts are a great addition to tunnel construction teams with their portability and rapid deployment capabilities.
Product Advantages
Portable design: Foldable storage, the volume is only 1/3 of the traditional air duct, and the transportation and storage costs are reduced by 50%.
Quick installation: Modular interface design, the connection can be completed within 5 minutes, greatly reducing the construction time.
High strength support: Built-in galvanized steel wire spiral skeleton, excellent compression performance, suitable for long distance tunnel ventilation.
Specific attributes
Material | PVC Coated Fabric |
Base Fabric | knitted/woven polyester fabric |
Color | Yellow or Black |
Fireproof | B1, B2, M1, M2, NFPA701 Optional |
Use temperature | -40℃ ~ +100℃ |
Surface Resistivity-Anti-static (optional) | <300 mega |
Pitch | 150mm, 200mm, 300mm |
Diameter of Wire | 5mm ~ 10mm |
Diameter | 10 inches ~ 70 inches |
Coupling Type | Steel ring, Zipper, Velcro or Customers Requirement |
Features | Flexible Corrosion Resistance Flame retardant, etc. |
Compressive strength | ≥5000Pa |
Application case
In a railway tunnel project in Southeast Asia, the construction team used our foldable air ducts to reduce the installation time of the ventilation system from 2 days to 4 hours, and the overall construction period was completed 1 week ahead of schedule.
