Installation hard? Air leaks? This flexible duct fixes site ventilation in one go!
Struggling with air leakage and difficult installation in construction site ventilation? This comprehensive guide covers how PVC-coated flexible ducts solve common problems with their 3-layer composite structure, steel wire reinforcement, and user-friendly design. Learn about specifications, applications, and why this duct is ideal for temporary ventilation in construction sites, tunnels, mines, and ship compartments.
Struggling with installation difficulties or air leakage in construction site ventilation? A well-designed flexible duct can solve these problems in one go.
In temporary ventilation scenarios—such as construction sites, underground tunnels, and ship compartments—standard flexible hoses often tear, lack temperature resistance, are cumbersome to hang, and leak at connections, leading to significantly higher long-term maintenance costs. ECOOSI, a specialist in flexible ventilation ducts, has launched a PVC-coated flexible duct designed to address these specific pain points, offering a balance of durability, ease of installation, and stable airflow performance.
3-Layer Composite Structure for Long-Lasting Durability
The duct is manufactured using an integrated composite process featuring three distinct layers:
- Outer PVC Plastic Layer: Waterproof, corrosion-resistant, acid and alkali resistant, heat-resistant and airtight
- Polyester Fiber Reinforcement Layer: Provides tensile strength and dimensional stability
- Inner PVC Plastic Layer: Ensures smooth airflow and additional protection
With a standard wall thickness of 0.35mm and an added external wear-resistant protective strip, the duct withstands abrasion from site debris and sharp objects. The built-in 1.4–3.5mm carbon steel spiral wire provides strong structural support, preventing collapse under negative pressure.
Strong Air Supply with Uniform Airflow
The smooth inner surface and optimized spiral structure ensure uniform airflow output with low resistance. This means stronger air supply and smoother ventilation throughout the entire duct length, whether you are pushing fresh air into a tunnel or extracting stale air from a confined space.
Stable Temperature Range for Year-Round Use
The product operates reliably between -10°C and +80°C and can withstand short-term exposure to 100°C. It ensures stable transport of hot or cold air across all seasons without softening, hardening, or cracking, making it ideal for humid underground or shipboard environments subject to significant temperature fluctuations.
Quick Installation: Pull, Connect, Done
Integrated metal suspension rings are embedded every 1.5 meters along the duct, eliminating the need for extra drilling or fastening and ensuring efficient, stable installation. The duct ends feature adjustable drawstrings for quick, secure connections to portable axial fans or air outlets, effectively minimizing air leakage.
Steel Reinforced Frame for Robust Construction
The carbon steel spiral wire skeleton provides robust construction that fits various air outlets. The flexible body allows for multi-angle bending to navigate around on-site pipelines and obstacles, enabling flexible routing with no blind spots.
Adjustable Design with Built-in Lifting Lugs
Key design features that reduce on-site installation costs:
- Adjustable Drawstrings: At the pipe end for effortless sealing and secure fan connections
- Built-in Lifting Lugs: Special PVC mesh tarpaulin with lifting lugs every 1 meter for easy hoisting
- Zero Air Leakage: Waterproof, anti-corrosion, acid and alkali proof, heat resistant construction
Flexible Retraction for Compact Storage
The duct boasts a compression ratio of 10:0.3, allowing for significant retraction after use. This means minimal space requirements for storage and transport—simply compress the duct when not in use and extend it to several meters when needed.
Versatile Applications Across Industries
Suitable for conveying clean hot or cold air (up to 80°C), covering mainstream engineering ventilation scenarios:
- Industrial Workshop: Air supply and exhaust for portable axial fans
- Construction Site: Temporary ventilation for building projects
- Laboratory Application: Controlled environment air management
- Mine & Tunnel: Underground ventilation for mines, basements, and tunnels
Additional application scenarios include:
- Fire Rescue: Smoke extraction and fresh air supply in emergency situations
- Airport Applications: Ventilation in large terminal spaces and maintenance areas
- Kitchen Exhaust: Commercial kitchen ventilation and fume extraction
- Industrial Dust Extraction: Welding fume and particulate removal
Comprehensive Specification Range
Available in a wide range of internal diameters to meet diverse project requirements:
Standard Diameters: 100 / 125 / 150 / 200 / 250 / 300 / 350 / 400 / 450 / 500 / 600 / 650 / 700 / 1000 / 1100 / 1200 / 1300 / 1400mm, with matching bell-mouth sizes.
Standard Lengths: 5m and 10m
Pressure Rating: Designed to handle both positive and negative pressure requirements
Custom Solutions: Available upon request for specialized applications
Why Choose ECOOSI PVC-Coated Flexible Duct?
ECOOSI combines durable materials, thoughtful design, and comprehensive specifications to deliver a ventilation solution that reduces installation time, minimizes air leakage, and withstands demanding job site conditions. Whether you are ventilating a construction site, tunnel, mine, or ship compartment, this PVC-coated flexible duct provides reliable performance season after season.
Contact ECOOSI today to discuss your ventilation requirements and get a tailored solution for your project.