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Cleaning long tubes? (More a howto/research aid)
(lemmy.world)
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this post was submitted on 25 Oct 2023
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Depending on what you're cleaning and the nature of the pipe (is it smooth or does it contain sharp bends?) you could consider pigging.
That is what we use on big hydraulic systems where the lines can be hundreds of metres long.
All this while bypassing all aggregates like motors, pumps and pistons.
I used to work in a brewery and we used hot caustic followed by acid for cleaning most things but some pneumatic (spent) grain systems got pigged in freezing weather to avoid the wet grain freezing into a plug.