, 螺旋风管厂家 Spiral duct , spiral duct manufacturers
There are three types of galvanized spiral ducts , stainless steel spiral ducts and composite spiral ducts in the market. Among them, the stainless steel duct is of the best quality and strong applicability, but the price is high. The most widely used spiral air duct on the market is galvanized sheet. The price of galvanized spiral duct is relatively two-thirds or even lower than that of stainless steel duct. The composite spiral duct is generally used in places where the external environment is relatively ordinary and the requirements on the duct are not too high.
The air duct is mainly used to connect the air circulation between the two places and play the role of ventilation and ventilation. At present, the most widely used on the market is the iron duct. As the iron sheet is prone to chemical reactions in various environments, it causes corrosion and rust. And zinc hardly changes in dry air. In humid air, a dense zinc zinc carbonate film is formed on the zinc surface. The ductile iron pipe is mainly coated with a layer of zinc on the iron pipe of the duct to protect the iron plate. After passivation treatment, dyeing or coating of zinc coating, zinc coating can significantly improve its protection and decoration
, 圆形 , 无焊接 , 不漏气 , 不漏水 , 多用于送风和散装物料输送 , 代替传统的白铁管 ( 即手工咬缝铁管 ), 全机制 , 直管无需敲打 . Spiral duct is a thin-walled tube made of spiral strip with metal strip. (Seam iron pipe ), full mechanism , straight pipe does not need to be beaten .