Gas regulator

[hank_marvinson]

had my welder a little while now but i'm not fussy on my regulator...

the ones i use at college have 2 dials, as you more than likely already know, one reads gas pressure inside the cylinder and the other you can alter for gas flow.

the one i have at home only reads cylinder pressure... so how do you know what the gas flow is? and what should i have it set at?

also, out of interest, how much welding time do you generally get out of an x size argoshield cylinder?

 

[rtbcomp]

You can get flow gauges; they're basically a ball bearing in a tube, put the gas in at the bottom and the flow is measure by how high the bearing floats.

Or you could just listen for a healthy shhhhhhhh at the nozzle.

WARNING - if you use the last method diasable the wire feed or you could end up with an ear piercing going all the way through!

 

[TonyWilk]

Hi,
Get a flow meter - they're only about 15quid or so.
I'm told that too much gas can be as bad as too little 'cos a high gas flow 'sucks in air', and you waste gas.

Yours,
Tony Wilk

 

[hank_marvinson]

ok, ill get a flow meter cheers, what is a good flow?

 

[Weldingartisan]

At my age anything more than a dribble! W/A

 

[shenion]

ok, ill get a flow meter cheers, what is a good flow?

Normally 10LPM or 20 SCFH.

 

[hank_marvinson]

nice one thanks!

does anyone know how much welding an x BOC cyclinder will give generally?

 

[klaatu]

nice one thanks!

does anyone know how much welding an x BOC cyclinder will give generally?

About 4 hours welding time, at 10 lpm.