Overview
Underground Spiral Duct is a high-performance ventilation duct specially designed for harsh environments such as mines, tunnels and underground projects. This product is made of high-quality PVC-coated fabric and features excellent corrosion resistance, moisture-proof, wear-resistant and anti-aging properties. It is suitable for long-term use in damp, high-dust or chemically corrosive environments.
The spiral duct has a scientific structure design, low air resistance, high ventilation efficiency, and is easy to install. It can flexibly adapt to the needs of different ventilation systems. Whether it is underground mines, subway tunnels, highway tunnels, industrial plants, underground parking lots and other places, this air duct can provide stable and efficient air delivery solutions.
Black Semi-rigid Ventilation Duct Reinforcement of steel rings
Features and Advantages
Superior broken tensile strength and tear strength
Extremely low air leakage rate in a hundred meter
Extremely low drag coefficient in a hundred meter
Excellent folding performance
Bear greater pressure without the danger of blowing
Easier in repairing: zipper repair band, Velcro repair band, and portable hot air gun
Without any unpleasant odor
Specific attributes
Raw Material | PVC Coated/Laminated Fabric |
Base Fabric | polyester fabric |
Color | Yellow or Black or Orange or customized |
Flame retardant rating | B1, B2, M1, M2, NFPA701 Optional |
Use temperature | -40℃ ~ +100℃ |
Surface Resistivity-Anti-static (optional) | <300 mega |
Pitch | 150mm, 200mm, 300mm |
Diameter | 10 inches ~ 78 inches |
Coupling Type | Velcro, zipper or steel ring |
Packing and Delivery
