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oxygen tank death

Discussion in 'Accidents and Incidents' started by abnfrog, Oct 11, 2019.

  1. michael-fisch

    michael-fisch Manta Ray

    # of Dives: 2,500 - 4,999
    Location: Germany
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    Been doing it that way for over 30 years. Most DIN Valves do not have outside flat surfaces, at least in Europe, so that is the approved way to remove DIN (G5/8") valves. Since front corners on the round bar stock are rounded off slighty to make engaging the rod easier there is no way to damage the flat at the back of the G5/8" fitting. Removing the valve is easy too - insert the bar into the valve, lay the tank down on rug covered surface and roll the tank with your foot - hard. If the valve doesn't loosen up (happens often on taper threaded valves using teflon tape or lead boots) repeat a couple of times.

    Michael
     
    BlueTrin, PBcatfish and happy-diver like this.
  2. Wookie

    Wookie Secret Field Agent ScubaBoard Business Sponsor

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    I have that tool if you want to copy it.
     
  3. PBcatfish

    PBcatfish Regular of the Pub

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    Can you post a drawing?
     
  4. dberry

    dberry Hydrophilic ScubaBoard Supporter

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    Here's a pic of a regulator multi-tool from AirCo that has been in my lab decades longer than I've HAD a lab... Regulator Multi-tool.jpg
     
  5. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Lake Jackson, Texas
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    We are talking about cylinder valve, which would require torque wrench with long arm, not such regulator wrench.
     
  6. TrimixToo

    TrimixToo Regular of the Pub

    # of Dives: 200 - 499
    Location: New York State
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    Wow. All my valves are DIN. Time to fire up the lathe and make a tool. 316SS for this, I think...thanks for posting this!
     
  7. Wookie

    Wookie Secret Field Agent ScubaBoard Business Sponsor

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    Mine is aluminum. Softer than plated brass.
     
  8. Wookie

    Wookie Secret Field Agent ScubaBoard Business Sponsor

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    I will try to post a picture of it. It’s base metal is 6061 hex bar stock, maybe 1”, maybe 1 1/4”. The end is a perfect hemisphere, with DIN male threads.

    Here is one like it, with a different business end. upload_2019-10-17_17-20-20.jpg
     
  9. michael-fisch

    michael-fisch Manta Ray

    # of Dives: 2,500 - 4,999
    Location: Germany
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    If at all possible, the bars should be made longer, making it easier to get the torque needed to remove valves. Mine is almost 24" long (please don't get started with the usual "mine is longer than yours":thumb:). Making impact tools out of aluminum is also a no-no, the ability of alum to cold weld into the threads will not result in being a happy camper.

    Michael
     
  10. happy-diver

    happy-diver Skindiver Just feelin it ScubaBoard Sponsor

    # of Dives: 100 - 199
    Location: same ocean as you
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