Large Diameter Flexible Ventilation Duct 1600mm for Tunnel Construction
This large diameter flexible ventilation duct is specifically designed for major tunnel construction projects. With a 1600mm diameter, it provides high airflow capacity essential for maintaining air quality in long tunnels. The duct features high tensile strength, flame retardancy, and a durable PVC construction, making it suitable for the most demanding underground environments.
Key Selling Points
- High Airflow Capacity: 1600mm diameter supports efficient ventilation in large tunnels (source: model list).
- Flame Retardant: Meets NFPA 701:2015 and DIN 4102 B2 standards (source: selling points).
- High Tensile Strength: Up to 4200 N, suitable for high-pressure systems (source: parameters).
- Seamless Construction: One-piece welding reduces air leakage (source: manufacturing process).
- Easy Installation: Lightweight and flexible design simplifies handling and setup (source: selling points).
Technical Specifications
| Diameter | 200 mm – 3200 mm (1600 mm standard for this variant) |
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| Section Length | 1 m – 300 m |
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| Tensile Strength | 1,000 N – 4,200 N |
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| Fabric Weight | 300 gsm – 2000 gsm |
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| Performance | FR or FRAS |
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| Connections | Zipper / Velcro / Steel Ring / Eyelets |
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Models and Options
Available in various diameters and lengths, including the standard 1600mm diameter with 10m sections. Custom lengths up to 300m can be manufactured to meet project requirements.
Materials and Structure
Made from PVC coated fabric, offering durability and resistance to abrasion. The fish-back welding ensures a seamless, low-friction duct that maintains structural integrity under continuous operation.
Applications
Perfect for large-scale underground construction projects such as high-speed rail tunnels, subways, highways, and hydropower stations. Used for fresh air supply, exhaust, and dust control.
Case Study
Trunk Road T2 Tunnel, Hong Kong
Supplied 5 km of large diameter ducts for undersea road tunnel construction, featuring high flame retardancy and easy installation to meet strict safety requirements (source: case 1639).
FAQ
What is the largest diameter available?
The maximum diameter we manufacture is 3200mm.
Can I get a custom length?
Yes, we produce ducts in lengths from 1m to 300m, tailored to your project needs.
Is this duct suitable for highway tunnels?
Absolutely, it is designed for various tunnel types, including highway tunnels.
What end connections are available?
We offer zipper, Velcro, steel ring, and eyelet options.
How does it handle high pressure?
The duct is built with high tensile strength and reinforced construction to withstand high-pressure ventilation.
Inquiry Information
Contact: Autumn Cui | Tel: +86-18251952515 | Email: autumn@js-sulong.com | Website: www.js-sulong.com
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- Alt: Large diameter flexible ventilation duct 1600mm for tunnel construction
- Additional Alt: 1600mm diameter PVC ventilation duct for high airflow in underground tunnels
