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  1. #1
    Join Date
    May 2011
    Location
    Oklahoma
    Posts
    362

    oxy/acetylene tanks

    I bought a set of spare tanks for my brazing rig off craigslist tonight. $25 for an MC and 20 CF.

    I got them home and wanted to see if there was any gas in them. I cracked the oxygen, got a "pfft" out of it and that was it. The acetylene was really tightly closed, it was pretty tough to open, but gas rushed out when I finally got it open. Happy for the possibility of bonus gas, I quickly closed it and went and got the regulator to see what it would register.

    I cracked the valve open again with the regulator on this time and the tank side of the regulator pegged out at 400 PSI! Pretty sure it is acetylene in the tank, it is labeled as such of course, and has that distinct smell, I'm just concerned about this tank pressure. Usually they are around 250 PSI when I swap them out. Is this safe to use at this pressure? Should I just exchange it as is? Purge some out to get it down to 250? I hope I didn't damage that gauge! I put a different tank on and the pressure was right on where it should be.

  2. #2
    Join Date
    Feb 2007
    Location
    ont. can
    Posts
    33
    my advice would be to ourge all the (unkown gas ) then fillit...safety first

  3. #3
    Join Date
    Feb 2007
    Location
    ont. can
    Posts
    33
    sorry...... purge the gas

  4. #4
    Join Date
    Jun 2011
    Location
    Oklahoma
    Posts
    22
    Like fenderizer said. Purge the unknown gas then take it to your usual place for your tank refills. They will usually trade it with a welding supply company. The welding supply company will do their normal checks on the cylinder. If there is any problems with the contents or the tank itself, they will take care of it.

  5. #5
    Join Date
    May 2011
    Location
    Oklahoma
    Posts
    362
    Hey pudgy, I'm in Tulsa too!

    I'll just dump the contents and swap it. I have to go pick up a condenser and coils at Palmer on Monday and they swap them right there on site.

  6. #6
    Join Date
    Jun 2011
    Location
    Oklahoma
    Posts
    22
    Done a lot of business with Palmer in the past. Do you know if Orwin and Chris still work there?

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