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Thread: o2 gas cleaning up

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    o2 gas cleaning up

    here's one I ve been thinking about for awhile ,, can ordinary welding o2 (I know its no different than med at source but is stored differently in bottles not vacuumed out clean ) be cleaned up by passing it threw a filter system to get out any impurities , and make it med grade again ? ( o2 good handling sops used )...........................steve

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    Re: o2 gas cleaning up

    Quote Originally Posted by udtabn  View Original Post
    here's one I ve been thinking about for awhile ,, can ordinary welding o2 (I know its no different than med at source but is stored differently in bottles not vacuumed out clean ) be cleaned up by passing it threw a filter system to get out any impurities , and make it med grade again ? ( o2 good handling sops used )...........................steve
    Part of aviators O2, is also lower water content.

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    Re: o2 gas cleaning up

    Quote Originally Posted by udtabn  View Original Post
    here's one I ve been thinking about for awhile ,, can ordinary welding o2 (I know its no different than med at source but is stored differently in bottles not vacuumed out clean ) be cleaned up by passing it threw a filter system to get out any impurities , and make it med grade again ? ( o2 good handling sops used )...........................steve
    Like throwing salt into a glass of water and then trying to get fresh water again. Yes, you CAN do it - but the effort, infrastructure and expense required mean it's probably better to just ensure a clean cylinder to begin with.

    I don't know what they're like where you are, but AFAIK the local supplier has installed non return valves in their welding O2 cylinders which mean the chance of back contamination with the most likely culprit, acetylene via a torch whilst the O2 runs out on the last fill, is greatly reduced.

    Personally I'm quite happy diving welding/industrial O2 and happy to accept the miniscule risk of issues for now.

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    Re: o2 gas cleaning up

    Quote Originally Posted by udtabn  View Original Post
    here's one I ve been thinking about for awhile ,, can ordinary welding o2 (I know its no different than med at source but is stored differently in bottles not vacuumed out clean )
    Not out here. All O2 cylinders are vacuumed clean. The last thing a welder needs is contaminated O2.

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    Re: o2 gas cleaning up

    Welding O2 has to be 99% pure where medical is only 95% or is it 96% pure.......

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    Re: o2 gas cleaning up

    Quote Originally Posted by Nwcid  View Original Post
    Welding O2 has to be 99% pure where medical is only 95% or is it 96% pure.......
    Around here some is 93%, some is 99%.

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