Our fire resistant flexible mine ventilation duct is a professional PVC spiral air hose specially manufactured for mine and tunnel ventilation systems, perfectly matched with axial flow fans to transport airflow underground.
Made of high-quality PVC composite material with fire retardant additives, the duct meets strict fire resistance requirements for underground works. It resists flame spread, reduces fire risk in confined tunnel and mine spaces. The built-in spiral support frame keeps the hose round and prevents collapse under negative pressure, maintaining stable air delivery.
It features excellent air tightness, strong tear resistance, good flexibility and easy coiling for convenient transport and layout on site. Lightweight and easy to splice, the duct can be quickly extended to suit different tunnel lengths. It is widely used in coal mines, metal mines, railway tunnels and hydraulic tunnels for forced ventilation and exhaust.
We supply different diameters and lengths, and can customize specifications to fit your tunnel fan projects.
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