【Question】For which media is it necessary to degrease valves?
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As a novice, I currently only know that when the medium is oxygen, acetylene, or high-pressure hydrogen, the valves must be degreased and made oil-free. I would like to ask everyone: what other media are needed, and do the valves require oil removal and degreasing?
Seems like liquid oxygen is also needed :lol
Well, it should be necessary; oxygen is needed too:D
For those media that require cleanliness and are sensitive to contamination, do valves also need to be degreased of oil?
Oil-free degreasing is mainly done for safety reasons
Personal opinion: An oxygen valve is essential; ethanolamine (for high temperatures)
Do acetylene and high-pressure hydrogen valves need to be degreased? What does that standard require?
This is what we require when selecting valves in practice. I wonder if there are any relevant standards or specifications for this