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Breathing oxygen through scuba regulator

Discussion in 'General Scuba Equipment Discussions' started by jbuw, Jun 4, 2019.

  1. jbuw

    jbuw Garibaldi

    # of Dives: 5,000 - ∞
    Location: Andaman islands
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    Hello,
    I wanted to breathe medical oxygen through a scuba regulator.( Don't fret , it's not at depth)

    Oxygen cylinders are not compatible with scuba regulators & scuba tanks cannot be filled with medical oxygen.

    Question is how do I do this.

    Any insight would be helpful.
     
  2. T Mogle

    T Mogle Solo Diver

    # of Dives: 25 - 49
    Location: United Kingdom
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    Bring or get someone to bring your medical oxygen to your local diving centre. If they service regulators and tanks they might be able to help you.

    I would think medical oxygen is delivered differently. You also breathe through your nose. A nose clip should solve that. Except for possible liability claims and responsibilities and stuff like that - I can't see why this is not possible.

    Just my 2 cents.....
     
  3. Bob DBF

    Bob DBF Solo Diver

    # of Dives: I just don't log dives
    Location: NorCal
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  4. rhwestfall

    rhwestfall Solo Diver

    # of Dives: 200 - 499
    Location: "La Grande Ile"
    12,449
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    and your regulator cleaned for O2 use..... Keep in mind, that regulator then should not see anything except hyper-pure air going forward...

    YMMV
     
    Snoweman, Soloist and loosenit2 like this.
  5. loosenit2

    loosenit2 Solo Diver

    495
    499
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    this is VERY important. Most scuba equipment is rated to 40% NITROX max. O2 cleaning ensuring that all parts, lubricants etc are compatable with pure oxygen. The risk of them not being compatable includes fires and worst case explosion.
     
    caydiver and Soloist like this.
  6. tursiops

    tursiops Marine Scientist and Master Instructor ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: U.S. East Coast
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    Although it is entirely possible to rig a scuba reg to a medical O2 cylinder, it is much easier just to have a scuba cylinder full of O2 and breath from that. and the scuba cylinder is usually bigger, too, so lasts longer.
     
    D_Fresh likes this.
  7. tbone1004

    tbone1004 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Greenville, South Carolina, United States
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    why off of a scuba regulator? If doing it at the surface it is much easier to get a demand valve that fits onto the DISS port of the existing oxygen regulator you have
     
    elgoog, Ana and Snoweman like this.
  8. tursiops

    tursiops Marine Scientist and Master Instructor ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: U.S. East Coast
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    Not sure what you mean by this. Tech divers do it all the time. We don't dive with impure oxygen.
     
  9. tbone1004

    tbone1004 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Greenville, South Carolina, United States
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    he may only have access to O2 from a medical shop which will only have the pin index and maybe the standard CGA fitting. They don't usually fill scuba tanks....
     
  10. KWS

    KWS ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 500 - 999
    Location: SE TEXAS
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    clarify your statement """scuba tanks cannot be filled with medical oxygen"""" I seldom see them filled with anything other than med oxygen.

    If you are talking about physical aspects then you get a adaptor fot teh scuba tank and the O2 tank and just fill. Your O2 tank may use a cga 540 or a 870 or other valve types. You just get the fitting and connect a hose to it and attach the other side to a scuba fill adapter.

    here is an example of an O2 tank valve with the hose connection onthe bottom. My O2 tanks are fitted with cga 540 valves like the welding bottles have.

    images?q=tbn:ANd9GcRaK2xJNP3wVR47h3_dP2QfyrSOqV4KqEsoeRuGPgX42Las5eyK0A.jpg


    My fill whip is a hose with quick disconnect fittings on it so i can put what ever adapter I want on any end. So on one end i can put the puctured valve on it and the other end a cg540 or a scuba din connection.

    Here is a link that will show many adapters you can use depending on your need

    http://www.tfmengineering.com.au/TFM Engineering Catalogue 2017-03.pdf

    IUf you wold like to see teh items i use PM me and i will send you pics and info.
     

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