Gas Pressure for Mib welding

[bhardy501]

Hey Gadget, just to let you know. This is another post where my posts got deleted in the recent site problems. I think I lost about 10 or so posts all together.

[robert]

you can go around 15 if your inside with no wind, your c25 gas will last longer.

---------- Post added at 08:23 PM ---------- Previous post was at 08:20 PM ----------

And yes the valve should be opened all the way.

[junes]

30 is way high your getting turbulent flow at that point defeating the purpose of shielding gas. As for the stems your right but wrong at the same time. High pressure cylinders are not 3000 psi they are 6000psi. They double seal as do some regular presure tanks so to be safe just open them all the way EXCEPT acytelene. DON'T open that more then a quarter turn.

[Hamstn]

I was taught the 1/4 turn thing from day one but I don't know if I was ever told why?

[arandall]

30 is way high your getting turbulent flow at that point defeating the purpose of shielding gas. As for the stems your right but wrong at the same time. High pressure cylinders are not 3000 psi they are 6000psi. They double seal as do some regular presure tanks so to be safe just open them all the way EXCEPT acytelene. DON'T open that more then a quarter turn.

Junes:
What's the reason for the 1/4 turn rule for acetylene?

Art R.