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  1. limaruoo

    Safe operating pressure to work on H2 Line

    All, I been away on work travel and i finally got back home. I read all your replies and I made the decision to not have my maintenance team work on the line until it's fully purged with nitrogen. I appreciate all the advice and support!
  2. limaruoo

    Safe operating pressure to work on H2 Line

    @Heaviside1925 To be clear, I'm not advocating for this work. I'm merely asking if it's safe to perform this work at a lower pressure without purging but based on your comments as well as others in this thread it seems a full purge is required to ensure safety. However, devil's advocate here...
  3. limaruoo

    Safe operating pressure to work on H2 Line

    @LittleInch good points. the leak is coming from some compression fittings. the work scope is to tighten the fittings using non spark tools to see if that creates a good enough seal. If it still can't hold pressure without fixing then the fitting will need to be replaced.
  4. limaruoo

    Safe operating pressure to work on H2 Line

    HI all, I work at a chemical plant and we have small hydrogen leak coming out of this long hydrogen line among some fittings. One of the main issues with H2 besides its wide flammability range is that when you have to purge the line of hydrogen you have to use helium to purge the line before...

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