It's been years since I posted on this forum and had to re-register to the newer forum. Anyhow my question has to do with buying this brand new tank cylinder so I can use it for nitrogen, https://www.harborfreight.com/welding/w ... 92807.html
It's marketed for Argon. Does it make any difference? Will welding supply companies fill it with nitrogen or does it need to be specifically made for Nitrogen? I already have a Nitrogen pressure regulator kit from Mastercool. Somebody please school me....
Nitrogen and Argon cylinders have the same valve. The industry standard for Inert Gasses is CGA 580.
If you have a virgin cylinder they can fill it with nitrogen easily. If it contains Argon now, they will want to "clean" it for gas purity. FYI, you can use Argon to test a system - so if you plan to use Argon later for something like a welding process, you could fill it with Argon now.
