Tig regulator

[pondy]

Is it acceptable to use a regulator that has previously been used for mig welding or a big no no.

Starting tig welding and wondering if I can use a spare regulator I had used on my mig or if the c02 which had previously flowed through it would have any ill effects

Thanks
Sam

 

[Paul.]

No problem at all as long as its suitable for the pressure, no different to a reg with fresh air in it, it just purges out when you start to use it,

 

[wyn]

If you have used it for CO2 will it be a different fitting compared to the bullnose male fitting for an argon bottle.

 

[pondy]

If you have used it for CO2 will it be a different fitting compared to the bullnose male fitting for an argon bottle.

Sorry should have added was not pure c02 but argon/c02

 

[Richard.]

Argon and argon/co2 regs are perfectly usable for both mig and tig welding with argon and mixed gases. A lot of people prefer a dedicated tig reg (fixed pressure adjuster , one clock and flow meter) simply because it's seen to give more accurate flow rates. Tbh it makes no difference which ever you use if you check your flow with a pea shooter at the torch.