Quote Originally Posted by glennac View Post
Sorry for my confusing boys. A friend of mine who is the manager of facilities of a small state technical college (2,500 students) where trades are taught (HVAC, welding, etc., asked me what the highest expected pressures used for brazing was.

Well it turns out he wanted to know what is the pressures going from the tanks to the regulators was. Of course that would be about 2,000 psi from the oxygen tank to the regulator and maybe 20 psi for acetylene.

You see he wanted to know the test requirement for testing. That would be 3,000 psi for the oxygen pipe..

They are running their pipe from a tank room to several welding stations iin the adjoining lab. Anyhow didn't understand his question at first. Appreciate everyone's input here. Thank you very much.
https://www.law.cornell.edu/cfr/text/46/56.50-103