Backpurge question

Mar 04, 2005 4 Replies

So I've assembled all the brass nipples, elbows, tee etc. to make a "y" from my argon cylinder so i can run two flow meters--one feeding my TIG torch and the other feeding the backpurge line.



I have a valve for the end of the backpurge hose. I'll use that to turn the argon off and on at the welding table, thus saving some gas. But now, I am not quite sure what I ought to use to deliver the argon from the shut off valve to the backpurge dam. Should I get some of that clear vinyl plastic tube?



Ciao, David Todtman


Clear vinyl tube works fine as long as it doesn't get hot. The backpurge jets I use for seam welds are if various lengths, but they all get pretty warm during a weld. High temp Silicone hose makes more sense.

Directional jets don't tend to be as close to the weld so they stay pretty cool.

Thanks Ernie. What is high temp silicone hose used for. I.e., what sort of outfit might carry it? Ciao, David Todtman

Hydraulic supply shops tend to carry it.

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