flow meter with my mig welder

[GaryD]

Can I use an argon/helium flow meter for co2???

[redneckalbertan]

Yes as long as it will thread into your bottle, but the graduations on the side may not be correct for gas flow rates. Argon mix, N2, and O2 fittings are the same CGA 540 valve CO2 may be a flat face fitting. Adapters are sold. I can't comment on your particular flow meter but on most that I have seen there are usually a set of marks for CO2 and another set for argon/CO2 mix. Take a close look and see if yours is that way. At the end of the day there isn't a whole lot of difference between them, and you probably won't notice a difference if the flow meter is set at the recommended level even if it's the wrong one.

[GaryD]

Thank you very much for your reply and I will look is marked on the bulb...