Hi folks,
I have 2 old sets of (Prest-O-Weld, Linde, Union Carbide, Purox) regulators. I can only afford to have one set completely rebuilt right now. These thing as old as they are work so much better than the cheapie generic (can you say drifting) regulators I got with my clone set. I'd like to know which is the better set of these Purox units.
One is a type R-111(Acet) and R-5517(O2) Prest-O-Weld/Oxweld and also have the Linde and Union Carbide names on them on them(these have large nosed diaphragm housings with a big T handle...the O2 gauges are rubber jacketed and the rear of the Acetylene regulator housing is painted red); both are heavy.
The other set is type R-205(O2) and R-207(Acet) Purox/Union Carbide(these are a little smaller than the others and the chromed diaphragm housing is shorter and more rounded..the T handles have tabs and are chromed).
As far as I know, the 205 and 207 set is newer which doesn't mean that it will be better when rebuilt to "as new" condition. I thank you in advance for any help you may be able to provide on these regulators.
Danno