High Capacity Spiral Ventilation Duct 2500mm for Large Tunnels
Large diameter spiral duct engineered for high-volume airflow in major infrastructure projects.
Product Summary
Designed for large-scale underground engineering projects, this 2500mm diameter spiral ventilation duct delivers exceptional airflow performance for tunnels, subways, and highways. With a standard section length of 5 meters (custom lengths available), it offers efficient ventilation in demanding environments. The duct is constructed from high-strength PVC coated fabric with spring steel wire reinforcement, ensuring durability and resistance to high pressures.
Key Selling Points
Large Diameter 2500mm: Handles high volume airflow, reducing number of ducts required.
5m Sections: Standard 5m length for efficient installation and handling.
Spring Steel Wire Reinforcement: 5-10mm wire adds rigidity and pressure resistance.
Easy Installation: Lightweight and flexible for quick deployment.
Custom Options: Diameter, length, material weight, and end connections customizable.
Technical Specifications
Diameter
2500mm (custom 200-2800mm)
Section Length
5m standard (1-20m custom)
Material Weight
300 gsm - 2000 gsm
Usage Environment
Positive or Negative Pressure
Performance
FR or FRAS
Certifications
ISO 9001, CE, SGS Test Reports
Models and Options
Diameter range: 200mm - 2800mm
Length: 1m to 20m
End connections: Zipper / Velcro / Steel ring
Antistatic fabric optional
Materials and Structure
PVC Coated Fabric (Nylon base) or PVC Laminated Fabric. Spring Steel Wire 5-10mm helical reinforcement. Welded seams for maximum strength.
Applications
High-speed rail, subway, highway tunnels, hydropower stations, and other large underground construction projects.
Customization
We offer custom diameters, lengths, material weights, and end connections to meet specific project requirements. Contact our engineering team for assistance.
FAQ
What is the maximum diameter available?
Up to 2800mm.
Can I get custom lengths?
Yes, lengths from 1m to 20m.
What certifications do you have?
ISO 9001, CE, SGS test reports, and ATEX for explosion-proof series.
Is this duct suitable for high-pressure applications?
Yes, it is designed for both positive and negative pressure environments.
What end connections are available?
Zipper, Velcro, and steel ring.
Can the fabric be antistatic?
Yes, antistatic fabric is available as an option.
What is the minimum order quantity?
Flexible MOQ, contact us for details.
How fast is delivery?
Delivery time depends on order size and customization. Please inquire.
Inquiry Information
Contact Person: Autumn Cui Tel: +86-18251952515 Email: autumn@js-sulong.com WhatsApp: +86 182 5195 2515 Address: No.9 Filter Material Industry Park, Funing, Yancheng, Jiangsu Province, China
