How to prevent corrosion of pipeline insulation metal sheets?
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The image below shows that the moisture barrier of the insulated pipeline is tragacanth, while the protective layer is galvanized iron sheet. Galvanized iron sheets corrode after being used for a while; how can such structures be protected from corrosion?
Check whether the moisture barrier is damaged and can no longer provide moisture protection. Replace the aluminum alloy protective layer. Because when galvanized iron sheet is used as a protective layer, it acts as an anode, which makes it easier to protect the pipes
The surface protective layer has been replaced with aluminum sheets, and water-retaining insulating material is also used