Relatively enclosed Spaces such as industrial plants, agricultural greenhouses and mine tunnels all rely on ventilation. The ventilation system is as important as the "respiratory system". The absence of breathing means death for a person, and without ventilation systems in these places, normal production activities cannot be carried out. Although traditional metal air ducts dominate the mainstream market, problems such as their heavy weight, susceptibility to corrosion and complex installation have never been solved. In recent years, flexible ventilation ducts made of PVC-coated fabric have become increasingly popular due to their unique advantages.
The air ducts made of PVC-coated fabric weigh only 1/5 to 1/10 of those made of metal, significantly reducing transportation and hoisting costs. PVC flexible air ducts do not require heavy supports and can be flexibly installed to fit the spatial structure, making them particularly suitable for high-altitude or narrow areas. Its wind resistance coefficient is low (with a roughness of only 0.01mm), and it saves energy by approximately 15%-20% compared to metal pipes.
The high-strength polyester fiber base fabric and double-sided PVC coating enable the tear resistance strength of the air duct to reach over 5000N. Anti-uv and anti-aging treatment agents have been added to the PVC coating. The fabric can withstand extreme temperatures ranging from -40℃ to +100℃, and its anti-mold and antibacterial performance has also been significantly enhanced. Even after being used in an acidic environment for five years, the tensile strength can still retain over 85%.
PVC fabric allows for the customization of ventilation ducts with diameters ranging from 10 inches to 122 inches, and the length can be infinitely linked through buckles, zippers or steel rims. Even in complex underground mines or tunnels, flexible air ducts can be easily laid out.
The surface of the PVC coating is smooth and dust-free. It can be cleaned by wiping with a damp cloth. It won't rust and clog like metal pipes. Even if there is a local damage, it can be quickly repaired without the need to replace the entire section, reducing the maintenance cost by more than 70%.
The application of PVC coated fabric in the ventilation field represents an iteration of materials. With the advancement of materials technology, this solution that combines economy and functionality is bound to become the new normal in the field of ventilation.