Help with setting Argon Co2 Flow Gauge
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  1. #1
    Join Date
    Dec 2011
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    87

    Help with setting Argon Co2 Flow Gauge

    I just got a new argon - Co2 flow gauge but I'm not sure which scale do I use to set the flow? The inside numbers are for argon and the outside are for Co2 but if I'm planning on using either a 75/25 or 98/2 argon/Co2 mix so would I use the inside or outside?
    I asked the shop that I bought the gauge from as well as the manufacture of the gauge and no one seems to know what to tell me.
    Thanks
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    Last edited by hotrod123; 01-13-2020 at 07:28 PM.

  2. #2
    Join Date
    Apr 2017
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    Re: Help with setting Argon Co2 Flow Gauge

    Looks like argon is the inner gauge but I'd measure at the torch if you're looking for accuracy.
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  3. #3
    Join Date
    Dec 2011
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    87

    Re: Help with setting Argon Co2 Flow Gauge

    thanks but I don't have a means to measure it at the torch.

  4. #4
    Join Date
    Jan 2011
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    Re: Help with setting Argon Co2 Flow Gauge

    If you are welding indoors use 20 if outdoors use 30. The scales are not very different on the low end .
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  5. #5
    Join Date
    Jul 2016
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    Re: Help with setting Argon Co2 Flow Gauge

    It doesn't matter because you can dial it down from 25 or 20 or 15 until you get porosity and then add 3-5 CFH for indoor.
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  6. #6
    Join Date
    Jun 2012
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    Re: Help with setting Argon Co2 Flow Gauge

    On that flowmeter, it shows that Argon is the inner scale, and CO2 is the outer scale (based on the location of the wording on the face of the gauge). That being said, if you need to split hairs, you should look up the thread by MetalMan where I posted up a link to a very useful spreadsheet that I created for just these kinds of scenarios. For 98/2 Ar/CO2, you could just as easily use the Argon scale. For larger amounts of CO2 like C25, you could just tweak it like was said, or if you want to see the actual number use the spreadsheet and it will show you. I assure you the differences are minimal if you use the Argon or CO2 scale either way.
    Last edited by Oscar; 01-13-2020 at 08:22 PM.
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  7. #7
    Join Date
    Oct 2006
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    Illinois
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    Re: Help with setting Argon Co2 Flow Gauge

    Some prefer a regulator that has a ball inside that floats .

    https://www.amazon.com/gp/aw/d/B07M8...?ie=UTF8&psc=1


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