How to set the oxy acetylene regulators

okay this one is on setting the pressures and probably get into the torch tips and a few things like that it's very important how you set these things and earlier I've talked about you know the high pressure and the oxidizing problem with oxygen if there's any carbon present and that the acetylene can't be over 30 pounds in fact if you look on the gauge as you can get up to that gauge here oh you can see ending over 15 pounds in red and of course the tops out at 30 so we need to consider what pressures we're going to put on this they're going to be below 15 definitely below 50 okay first we're going to talk about adjusting the regulator before we get started the the regulator if you turn it clockwise that increases pressure that's a little backwards for most valves but that's the way regulator works when I start it should be loops like this okay I'm going to go ahead and turn on my gas now this is acetylene this one's only running yeah well I definitely need to change them gauges I'm running about 235 okay 235 pounds of pressure and of course I'm zeroed here because there's nothing coming out now when I go to adjust this I'm probably going to adjust this thing to about five psi down here and the way I adjust that now I've got the torch here and I've got if you look on this thing you can see it says oxy and gas gas as a fuel gas because you don't have to use acetylene although you're nuts if you don't okay if I'm going to set this regulator I want the gas open okay because I want to set the pressure while there's actually gas coming out so I've got that open let's take a look a little closer at the gauge okay they start turning this down it's going to have a little more resistance and you can see that the pressures starting to go up now I'm going to set this thing to about five pounds now if I shut it off and I am shutting it off you can see it goes up a pound or two that's why I wanted to do it running definitely need to change them gig anyway now my acetylene regulator is set now remember when I'm setting this regulator I'm not going to get up to 15 pounds keep that sucker way down here someplace you've got a pretty good sized tip you're going to have to go up a little bit higher on that but but don't get above 15 pounds okay now I'm at the oxygen now again this is loose before I start open my gauge goes up I got about 700 pounds in there and the one I'm really looking at is this one here and again as I did before now put this thing up here I'm going to go to oxy and I'm going to open it okay now I start cranking this thing down and it'll start coming up and I'm going to run this at about ten okay think of the two numbers ten and five always my oxygen should be at a higher pressure than my settling may rot want to run that thing up to 12 or 13 something like that but for torch work brazing in the life you usually don't need it much higher than that okay this thing is ready to go now okay one of the things I'm going to do right now is show you what's wrong with my torch said it's only all the terrible things about my torch there should be check valves here all new ones have check valves one of the reasons I make sure my oxygen is always higher than my acetylene is so that I could not get into a situation where oxygen could actually go or settling could actually go back into the oxygen line then it could burn inside the line I've done this for so many years maybe I'm just set my ways or whatever I don't know but I never have got a set for these things by the way just while we're here notice that the acetylene gas has a mark around the fitting this one does not on oxygen that's because this is left hand thread they don't want you mixing these things up because here again if I'd running acetylene which is just full of carbon through an oxygen line it could explode so these cannot be mixed up and that's a regulator set up next we're going to get into the Torx tips and how to set the flame on the oxy-acetylene right

Channel: grayfurnaceman

Views: 725,554

Rating: 4.4978876 out of 5

Keywords: torch, repair, service, brazing, soldering, welding, air conditioner, refrigeration, Oxy-fuel Welding And Cutting

Id: 3ZFnaP9QJ6k

Length: 7min 0sec (420 seconds)

Published: Mon May 27 2013