regulators replace/repair

admin

I have an aircraft torch set, with a set of small single stage regulators.  I never go above 20 psi O2 for cutting.Both of my 35 year old regulators are now "leaking" so that when the torch gets shut off, there is a slow continuous climb in pressure in the hoses.  Back when I bought the regulators, the pitch was that parts would always be available to repair the Linde regulators.  Of course, that is not true any more.So I have been shopping around looking at new regulators, and also looking at the ballpark to repair the Linde regulators, which seem to only have a problem with the regulator needle valves (specifically, the gauges all zero and work smoothly.).I would appreciate any general pointers.  One area of concern is that many O2 regulators have low pressure gauges with 200 PSI markings.  That would have me always using the bottom 5 or 10% of the gauge.  Should I be looking for gauges which are in the 100 PSI range?Finally, I do some small work with the torch, sometimes intricate silver soldering, and also use it for wrenching, cutting farm metal, etc.  I'd love to get a MIG/tig/stick/plasma unit at some point, but the oxy-acetylene unit works for about 80% of the stuff I have to do.  Thanks again for any pointers.