PVC-EVD PVC Extendable Ventilation Duct
parameters
| Model | Overall Length (m ) |
Rear Ring (mm) |
Bell Mouth (mm) |
| 8" | 5m/10m | 200 | 280 |
| 10" | 5m/10m | 250 | 330 |
| 12" | 5m/10m | 300 | 380 |
| 14" | 5m/10m | 350 | 430 |
| 16" | 5m/10m | 400 | 480 |
| 18" | 5m/10m | 450 | 530 |
| 20" | 5m/10m | 500 | 580 |
| 24" | 5m/10m | 600 | 680 |
| 28" | 5m/10m | 700 | 780 |
| 32" | 5m/10m | 800 | 880 |
| 40" | 5m/10m | 1000 | 1080 |
CHARACTERISTICS
- 1.Composite material structure: Nylon canvas base + PVC coating, built-in galvanized spiral steel wire support frame, flexible and pressure-resistant tube body, not easy to collapse and deform.
- 2.reely telescopic & foldable: Axially stretchable with long extended length and small contracted volume, convenient for transportation, handling and storage.
- 3.Weather & corrosion resistance: PVC coating is waterproof, moisture-proof and resistant to mild acid and alkali, adaptable to humid, dusty and other complex working conditions.
- 4.Quick connection installation: Standard round diameter at both ends, can be quickly locked and connected to fans and ducts with metal hose clamps, with good sealing performance.
Applicable scenarios
- · Engineering construction ventilation: Temporary air supply and ventilation for tunnels, mines, underground works and confined spaces.
- · Waste gas & dust extraction: Extraction and discharge of welding fume, paint exhaust, industrial dust and oil fume.
- · Flexible equipment connection: Flexible duct connection for industrial fans, dust collectors, drying systems and exhaust equipment.
- · Temporary venue ventilation: Temporary ventilation for large venues, warehouses, greenhouses and workshops.
Advantages
- 1.Durable & robust: PVC coated nylon fabric is wear and tear resistant; steel frame resists negative pressure, not easy to damage for long-term and reusable use.
- 2.Efficient deployment: Telescopic design for ready-to-use, no complex installation required, quickly build temporary ventilation systems.
- 3.Cost-saving: Lower procurement cost than rigid ducts; greatly saves storage and transportation space after contraction, reduces logistics costs.
- 4.Strong universality: Standard round diameter fits most axial fans, centrifugal fans and ventilation ducts, compatible with both new and old systems.
- 5.Flexible use: Bendable and stretchable, can be arranged around obstacles, suitable for narrow and irregular installation spaces.




