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  1. #1
    Join Date
    Jul 2008
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    Lismore, NSW
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    54

    Default Gas volume calculator

    Hey,
    I'm trying to work out the volume in liters of a Air Liquide Dx size Argon bottle. They are 2.2 cubic meters at ~16000 kPa. Is that 2200 liters?
    I'm trying to figure out long a bottle will last at typical TIG flow rates. Can anyone throw me a bone?

    Cheers

  2. #2
    Join Date
    May 2011
    Location
    Murray Bridge S Aust.
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    Default

    Hi, that sounds about right.
    Kryn

  3. #3
    Join Date
    Jul 2008
    Location
    Lismore, NSW
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    Default

    Thanks man. I could expect about 5 hours from this size bottle?

  4. #4
    Join Date
    Jan 2013
    Location
    Blue Mountains
    Posts
    4

    Default Gas volume calculator

    Quote I've always been told thickness of wire x10. So 0.8mm wire = 8l gas/min, 0.6 = 6l/min etc. - which seem s to work well enough. Unquote

    Link http://www.mig-welding.co.uk/forum/s...ad.php?t=32882
    Wood burns faster when you have to cut and chop it yourself.
    ~ Harrison Ford

  5. #5
    Join Date
    Feb 2010
    Location
    Ballina, NSW
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    872

    Default

    Yep 2.2m3 = 2,200 litres.
    TIG welding will typically use between 6 and 12 lpm depending on cup size, how sensitive the metal is, etc. I typically use 8 lpm, that that means your cylinder would last me 2,200/8 = 275 minutes, or about 4.5 hours. When you factor in pre/post flow, gas purge or any other use, you might only have 3 to 4 hours of actual arc time.

  6. #6
    Join Date
    Jul 2008
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    Lismore, NSW
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    Default

    Thanks again fellas. I thought my math skills weren't too shabby.

  7. #7
    Join Date
    May 2011
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    Murray Bridge S Aust.
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    Default

    Quote Originally Posted by distractor View Post
    Thanks again fellas. I thought my math skills weren't too shabby.
    Nice to know your parents didn't waste money on your ejubacation.
    Cheekily
    Kryn

  8. #8
    Join Date
    Jul 2011
    Location
    Mackay
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    37

    Default

    Quote Originally Posted by crash486 View Post
    Quote I've always been told thickness of wire x10. So 0.8mm wire = 8l gas/min, 0.6 = 6l/min etc. - which seem s to work well enough. Unquote

    Link Flow rate for MIG - MIG Welding Forum

    so my 3.2 ally rods should need 32L/m
    10x wire dia. would be minimum MIG flow rates, Tig is a little lower

  9. #9
    Join Date
    Mar 2011
    Location
    Taree NSW
    Posts
    55

    Default l/m or p.s.i.?

    Quote Originally Posted by WelderMick View Post
    Yep 2.2m3 = 2,200 litres.
    TIG welding will typically use between 6 and 12 lpm depending on cup size, how sensitive the metal is, etc. I typically use 8 lpm, that that means your cylinder would last me 2,200/8 = 275 minutes, or about 4.5 hours. When you factor in pre/post flow, gas purge or any other use, you might only have 3 to 4 hours of actual arc time.
    Does anyone have any experience with the Air liquide mini top oxy/acetylene cylinders? - when I went to tech we were taught to use (from memory) 5 p.s.i. of acetylene and 14 p.s.i. of oxy when welding panel steel -the regulators on the Minitops are apparently graduated in litres/min. and they have no delivery pressure gauge - Air liquide at this stage haven't been very helpful so can anyone advise me how to set my regulators in l/m to weld panel steel?

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