? on O/A torch regulator

admin

I have a radnor torch kit and in the manual it all go's by cubic feet per hour and on the reg it go's by kpa and psi is kpa the same as cubic feet per hour?Millermatic 211 with 150 spool gunDynasty 350 Hypertherm powermax 30XP
Reply:Nice shop ! Very nice.About your question.PSI,KPI (metric) and cubic feet are all used, but different.The regulator usually shows two scales.as far as the torch setting for actyelene Obvioously NEVER exceed 20lbs pressure.Thats why the actylene shows a red zone on the guage.The torch settings for the size of tip or cutting torch should be listed in your owners manual but if not, any welding store has a small pocket guide that you can get as a reference.Also when adjusting the flame on the cutting torch, fine tune the shape of the pointed flame with the cutting lever depressed.Never get any petroleum product near your oxy rig.Not being condescending, just covering the bases.
Reply:I have a radnor torch kit and in the manual it all go's by cubic feet per hour and on the reg it go's by kpa and psi is kpa the same as cubic feet per hour?
Reply:Originally Posted by chris maddenI have a radnor torch kit and in the manual it all go's by cubic feet per hour and on the reg it go's by kpa and psi is kpa the same as cubic feet per hour?
Reply:so I sould go off of psi ?Millermatic 211 with 150 spool gunDynasty 350 Hypertherm powermax 30XP
Reply:so I sould go off of psi ?
Reply:Originally Posted by SandyMost of the tip charts I've seen are referenced in psi. PSI is the US standard (still)  . All of the talk you hear will be in psi.
Reply:Originally Posted by chris maddenok thanks
Reply:Originally Posted by William McCormick JrI was taught this by my father. You start at seven psi of acetylene at the regulator. You start at 40 psi at the regulator for oxygen. For cutting this works well. And you can also use a welding torch tip as well at these pressures. I was taught to light a torch by my shop teacher actually. He said you turn up or down the acetylene till the flame just does not leave the torch. Add oxygen until you get neat needle blue flames. But no harsh sounding or vibrating blue needle flames.  Shut off the acetylene first when you are done.        Sincerely,             William McCormick
Reply:Originally Posted by chris maddenwould that be the same for a 10-mfa ?
Reply:Originally Posted by chris maddenwould that be the same for a 10-mfa ?
Reply:Cris that 10 mfa is a pretty good size rosebud.What size acetylene tank do you have? there is a saftey rule that says do not use more than 1 seventh of your tanks capacity per hour!  if no one else post first ill look up the settings for that tip for ya in the morning,be safe Victor SuperRanger O/A                                         Solar migLincoln Powermig 140Southbend 9in lathe350# kohlswa anvilMiller Maxstar 150 stl etc....
Reply:Good morning, from the Victor manual type mfa heating nozzles tip size 10 acetylene12-15 psig  oxygen 30-40 psig    acetylene cubic feet per hour is 30min.  100max.    as you can see it would be easy to break the 1/7 rule.  personally i use a #6 tip,be safe Victor SuperRanger O/A                                         Solar migLincoln Powermig 140Southbend 9in lathe350# kohlswa anvilMiller Maxstar 150 stl etc....
Reply:Originally Posted by William McCormick JrI was taught this by my father. You start at seven psi of acetylene at the regulator. You start at 40 psi at the regulator for oxygen. For cutting this works well. And you can also use a welding torch tip as well at these pressures. I was taught to light a torch by my shop teacher actually. He said you turn up or down the acetylene till the flame just does not leave the torch. Add oxygen until you get neat needle blue flames. But no harsh sounding or vibrating blue needle flames.  Shut off the acetylene first when you are done.        Sincerely,             William McCormick
Reply:Originally Posted by Go1lumI hope you wern't doing that with an equal pressure welding torch.
Reply:NEVER EVER EVER EXCEED 14 PSI ON ACETYLENE!!!!!!!!!!!!!!!!!!!!! Acetylene becomes unstable at 15psi. This means it can go BOOM all by itself killing you or someone else. You should never need more than 10psi on acetylene. Cubic feet per hour is normally used for shielding gases and requires a flowmeter. Your oxygen should be set at 35 to 40 psi.The difference between art and craft is the quality of the workmanship. I am an artist.