Pipeline anti-corrosion
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Dear technicians, for water pipelines and steam pipelines, after they are emptied and not in use for an extended period of time, is it necessary to apply anti-corrosion treatment to their interiors? Is filling it with nitrogen useful? I wonder if there are any other ways to handle this? Everyone can share, thank you
It doesn’t work well; basically, it has no effect at all. I wonder if there are any other ways
The pipeline is first blind-sealed, then purged with nitrogen, and finally sealed with nitrogen.
If possible, empty it and seal it with nitrogen; if you consider it a waste, then purge and wash it once before putting it into use
It’s not that I think it’s a waste; it’s just that the nitrogen filling provides almost no protective effect.
Nitrogen filling is currently the most cost-effective method; pipelines generally suffer from oxidation corrosion. As long as oxygen is not allowed to reach the joints, the corrosion rate will be reduced