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Thread: Flashback

  1. #1
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    Flashback

    Here is a link that was provided by a member about Flashback.

    http://www.toolboxtopics.com/Gen%20I...0Flashback.htm

    It happened to me so I thought it's best to make this a stickey..

    Thank you jbmprods for the link!

    ...zap!


    I am not completely insane..
    Some parts are missing

    Professional Driver on a closed course....
    Do not attempt.

    Just because I'm a dumbass don't mean that you can be too.
    So DON'T try any of this **** l do at home.

  2. #2
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    Re: Flashback

    your welcome Zap and glad it was just a wake up call. good idea you have hear to. lots of folks will see it.
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  3. #3
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    Re: Flashback

    A good combination is to have flashback arrestors at the regulators and check valves at the torch end.

    The check valves are nice because they don't add a lot of bulk at the torch end.


    And these are the arrestors.

  4. #4
    Join Date
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    4,258

    Re: Flashback

    When you inspect torches, keep an eye out for indications of internal fire damage such as heat discoloration.

    This now-much-shorter Victor mixer left parts of itself in the tube when it melted. I guess the Smith and Airco designers have a point. Tip-mix torches don't do this:
    Attached Images Attached Images  

  5. #5
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    Re: Flashback

    good post...this is good to know...i always lite my torch with mixed gas so it does have all the black smoke.

    Quote Originally Posted by zapster View Post
    Here is a link that was provided by a member about Flashback.

    http://www.toolboxtopics.com/Gen%20I...0Flashback.htm

    It happened to me so I thought it's best to make this a stickey..

    Thank you jbmprods for the link!

    ...zap!

  6. #6
    Join Date
    Oct 2010
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    NC
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    15

    Re: Flashback

    I would recommend investing in a newer torch with built-in flashback arrestors and reverse flow check valves. It is too easy to get in a hurry and not take the time to put these in the line to the regulators separately.
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  7. #7
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    Re: Flashback

    under what circumstances would anyone use acetylene over 15lbs? i find 10 lbs works fine for everything from sheet metal to 3" plate by changing the cutting tip to the correct size.

  8. #8
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    Re: Flashback

    This one provides an excellent visual of what takes place during those undesireable conditions.
    [ame]http://www.youtube.com/watch?v=xwOkUxe8Xy8&list=PL47639173BE8AF3F8&featur e=player_embedded[/ame]


    Last edited by DSW; 10-21-2013 at 05:20 PM. Reason: Fixed bad link.
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  9. #9
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    Re: Flashback

    Just reposted it Steve. Someone else did awhile back and I think the entire video series on proper setup and use should be a must watch for newbe OA torch users as well as a refresher for seasoned operators.
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  10. #10
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    Re: Flashback

    Great thread with great info!.. The YouTube was nice too! Showing what can happen during a "flashback''!

    How many on here have the flashback arrestors on their O&A setup ?

    Thanks!
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  11. #11
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    Re: Flashback

    Quote Originally Posted by WelderBill View Post
    Great thread with great info!.. The YouTube was nice too! Showing what can happen during a "flashback''!

    How many on here have the flashback arrestors on their O&A setup ?

    Thanks!

    I was first introduced to acetylene welding 47 years ago when my dad welded aircraft tubing. He never had flashback arrestors on his equipment. He never had a flashback because he followed proper procedures. With that being said, I believe he was more lucky than good. This stuff can happen to anyone.
    The older you get, the more safety conscious you become. Some call me paranoid, worry to much, etc. I've installed flashback arrestors on my torches, because I'd rather be a worrywart, than a dead wart.
    Last edited by Gobysky; 10-05-2013 at 09:28 AM.
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  12. #12
    Join Date
    Dec 2011
    Posts
    90

    Re: Flashback

    I was thinking of putting flashback arrestors on my Victor med. duty torch handle but the 3/8 sizxe seems nonexistent.
    Maybe I am missing them but all seem to be 9/16.
    Doing the best I can with what I got

  13. #13
    Join Date
    Nov 2011
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    Re: Flashback

    Thanks to the member that originally provided Zapster with the link that started this thread.

    Way too many guys using torch rigs and don't know how close to a (catastrophic) failure they are at.
    How do you know the blacksmith's dog? When you hollar at him he makes a bolt for the door!

  14. #14

    Re: Flashback

    Quote Originally Posted by duaneb55 View Post
    Just reposted it Steve. Someone else did awhile back and I think the entire video series on proper setup and use should be a must watch for newbe OA torch users as well as a refresher for seasoned operators.
    I cannot see the video, youtube says the video does not exist.

    Sincerely,

    William McCormick

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