Dongguan spiral duct manufacturing is highly automated and has a fast production speed. General ducts can produce 20 to 40 meters per minute. Because its raw material galvanized strip is cheaper than the entire galvanized steel sheet, plus its Factory production and standardization of specifications make the construction cost lower than that of rectangular ducts. In addition, due to less support and hanger requirements and less installation work, the total cost is lower. Because the four corners of the rectangular duct are prone to turbulence, the effective flow area is reduced.
The fresh air and exhaust air from the Dongguan Spiral Duct exhausts harmful gases outdoors and sends fresh outdoor air indoors. Generally speaking, the ventilation system has a large flow rate, so it is most suitable to use air ducts with less resistance to save construction costs and operating costs. Generally, galvanized iron pipes are used, and stainless steel pipes are used in corrosive and extremely humid places. There is a large amount of oil fumes in the kitchens of restaurants, restaurants, barbecue shops, and hotels. Spiral ducts are used as the outer layer of the heat insulation pipes of the central heating project and the heat preservation layer to make the pipes have a long life and good quality. Bulk material transportation In the production process of the factory, loose particles need to be transported, especially small specific gravity such as foamed plastic particles. The use cost is low and the effect is good.