How long will a 9Ltr Argon/C02 cylinder last

[540itouring]

I have a essab caddy c200i and have just ordered a gas cylinder which holds 9ltr . The gas mix is 93% argon / 5%/2%O2 and cylinder size is 90cm tall by 15cm Dia. This is for welding the floor patches in my car and would just like to know appox how long this size cylinder will last.



Thanks for your help .

 

[Wozzaaah]

What pressure is it filled to?

 

[540itouring]

What pressure is it filled to?

Pressure is 137 bar when new.

 

[Wozzaaah]

137 x 9 = 1233 litres, flow rate approx 10 lpm so just over 2 hours of welding time.

 

[540itouring]

Thank you very much for the fast reply. That makes sense now and glad i got this size bottle as it is cheaper than lots of small bottles

 

[Wozzaaah]

When you need a refill, try and get a 20 litre one as it shouldn't cost too much more and will possibly be filled to 200 bar, mine is.