by Ron Padilla
(I.E. of California)
at 1 point in the video it looked like you were at show of some type with the vendores hocking there wares. I cought notice of 1 that looked like they have a plug type of round donut with a fitting to hook a line to a argon line to purge tube or pipe while welding. Do you have any names of a company that make and sell a device like that? The info would be great as I am sure they would have tested to hold up in the environment.
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You are right. IT was a clip from 2009 aws welding show in Chicago.
I wrote a page and shot a quick vid of the guys giving their pitch
here is the link
stainless steel pipe purge plugs