whats the difference between Harris multi stage model 92-15, 92-50 and 92-100

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well my son asked me the difference between the model 92 series 92-15,92-50 and 92-100 so we pulled the SEAL-SEAT  parts list and tried to make some sense out of what makes them different. it looks like from the parts list that the model number has alot to do with the set up of gauge pressure parameters, inlet/outlet stems and fittings, diaphragm assembly and it looks like pressure adjusting springs are different also.  I think we saw the differences bewteen high pressure oxygen and low pressure acetylene so the question i still couldnt answer was what was the difference between a  92-50-510 (propane gauges 0-500,0-60 and a 92-15-300 or 510 (acetylene 0-500,0-30) it looks to me like the only difference is in the gauges and that the pressure adjusting springs are different.are we missing something or are the 92-15 and 92-50 regulators really that similar?  thks  bobLast edited by 37ford4dr; 01-05-2012 at 04:12 PM.bobs77vet/37ford4drEastwood digital TIG200HH190Lincoln Invertec 155sLincoln weldpak 100sears/craftsman (lincoln) 50a 240v buzz boxO/A rig Harris gaugesnexion cut 50 dxchicago electric (HF) 240v spot welder
Reply:it looks to me like the only difference is in the gauges and that the pressure adjusting springs are different.
Reply:Quick glance at Harris website:9200-50-3469200 == the series (in this case 2 stage high flow)50 == total flow rating (gonna use a big torch, get higher flow rating...)346 == fitting (300, 346, 580 etc.)So basically, pick your gas (that's the last number) then pick the flow you need.50 is good to about 500 scfh, 250 to about 2000 scfh (at 200psi).  The smaller ones will regulate better when the tank pressure gets low.  If you planning a large cutting torch to cut through 10" steel, get the bigger gauge.Con Fuse!Miller Dynasty 350Millermatic 350P-Spoolmatic 30AMiller Multimatic 200Hypertherm PowerMax 1000G3Miller Maxstar 200DX
Reply:lots of acet regs have internals that will not let the pressure go over 15.  However, dont forget, every time you turn on your acet tank, you just pushed ~250 psi into the reg and it stays that way for a while
Reply:Originally Posted by Fred slots of acet regs have internals that will not let the pressure go over 15.  However, dont forget, every time you turn on your acet tank, you just pushed ~250 psi into the reg and it stays that way for a while
Reply:but both regulators get "charged" the same way right? and they just hold it until you have purged them or it leaks out
Reply:Originally Posted by farmall...http://en.wikipedia.org/wiki/Pressur...ng_and_cutting