Corrosion protection for circulating water pipes
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What methods are used for anti-corrosion coating on the outside of the circulating water pipes, and what is the approach taken for internal anti-corrosion? What are the requirements for internal anti-corrosion?
The circulating water in factories is generally non-corrosive; the pipes are protected only on the outside, with no treatment applied to their inner walls. For specific discussions, see http://bbs.hcbbs.com/viewthread.php?tid=376385
It’s generally not done, but some companies apply rust prevention treatment by treating both the interior and exterior