Harris 92-100 Oxy Regulator

[GBertolet]

I have one that creeps, with no external leaks. It creeps up to about 40 pounds and stops there. I found a rebuild kit for $30, but haven't purchased it yet. Has anyone rebuilt one of these before? I have the front off, down to the diaphram, but don't have any further directions on Harris disassembly. I don't want to mess it up by plunging in blindly. I saw on utube, on a different brand, they just used teflon tape around the threads of an internal threaded orifice, to stop a creeping leak going to the low pressure side.

Does anyone have any info or links on disassembly and rebuilding these regulators? Thanks in advance.

 

[E.Marquez]

Im a big DYI guy, but gas regulators is one I farm out. Its not the mechanics of the rebuild, thats the easy part... Its simply , I don't have years of hands on experience to "see" an issue that one who deals with these daily will. Or knows you have to watch our for installing "that" "this" way or it will leak, fail faster, ect.

I have 5 regulators on bottles on any given day, the last one to creep and leak was an OT reg, drooped it off at Air gas on a Monday, picked it up a few days later. Did the same about 6 years ago with a Nitrogen regulator ......for the price (under $60) and long service life after repair...its just easier to drop them off and know its done right. (Ya I know there is an even chance the repair was done by some 18 year old kid that could not spell regulator last month and now is the guy doing the repairs...lol)

 

[bonneyman]

^^^ What Marquez said.

 

[Lelandwelds]

Im a big DYI guy, but gas regulators is one I farm out. Its not the mechanics of the rebuild, thats the easy part... Its simply , I don't have years of hands on experience to "see" an issue that one who deals with these daily will.

I worked in the gas business for 30 years. I don't repair my own regulators. A repair shop can repair 100 regs in a week per guy. They get good at it.

When you say "creep" are you describing normal regulator operation? Without adjusting output pressure as cylinder empties from 2000 PSI to 100 PSI, your regulator will RISE in pressure. It is an intentional physics/design feature.

If it creeps up and does not stop, that is a HP inlet valve problem. Cracking the cylinder before mounting regarding may help keep trash out.

 

[Lelandwelds]

Is this an o2 reg? Did you degrease your hands and bench? Do not use Teflon tape. Internal threads are not NPT pipe. When you strip it down did you use the required nasty chemical cleaner? It is expensive but good for thousands of regs and torches.