12/23/2023 0 Comments Spiral ductwork![]() Spiral ductworks can also be used in other places, even for drainage, liquid discharge or containers. After passivation, dyeing or coating treatment, the protective and decorative properties of the zinc coating are significantly improved. The spiral ductwork is mainly coated with a layer of zinc on the iron plate of the duct to protect the iron plate. In humid air, a dense basic zinc carbonate film will form on the zinc surface. There is almost no change in zinc in dry air. Composite spiral ductworks are generally used in places where the external environment is relatively common and the duct requirements are not too high.Īs iron plates react easily in various environments, they can cause corrosion and rust. Galvanized steel spiral ductwork is basically the characteristic of stainless steel spiral ductwork, but the price is only two-thirds or even lower of stainless steel duct. Currently, all spiral ductworks on the market are galvanized. Among them, stainless steel air ducts have good quality, strong applicability and high prices. Spiral ductwork in the market are generally divided into three categories according to their materials: galvanized spiral ductwork, stainless steel spiral ductworks and composite spiral ductworks. At present, spiral ductworks have been widely used in the market. The spiral ductwork is mainly used to connect the air circulation between the two places and play a role of ventilation. Now I will take you to understand some basic knowledge of types and characteristics of spiral ductworks. spiral ductwork is widely used in all walks of life. spiral ductwork is an indispensable part of industrial dust removal system. Since the spiral ductwork was first used for ventilation and cooling, it was classified as a duct and named according to its purpose.
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