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We purge hydrogen pipings with nitrogen to allow inerting. My question is, is this required? Hydrogen being so light, wouldn't it purge itself if we opened the pipings up to air (which is where our hydrogen vents)? Thanks in advance for your help.
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Hydrogen Lines Need Purging?
Started by askfordev, Sep 18 2016 10:12 PM
hydrogen purge pipe nitrogen inerting
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#2
shvet
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Posted 18 September 2016 - 10:15 PM
No, it doesn't purge itself. For more information about purging requirements and calculations see CEN/TR 15281 and NFPA 69.
#3
Bobby Strain
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Posted 18 September 2016 - 10:24 PM
If you looked at the flammability range of hydrogen, you probably would not ask the question. If we should tell you that you need not purge, what then?
Bobby
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