In this manner, what do you turn off first oxygen or acetylene?
It's typically recommended that when finishing with the use of an O/A torch, you shut off the acetylene first, then sut off the oxygen. I realize that this extinguishes the flame immediately, because the fuel gas is gone.
Also to know, how do you install a torch regulator?
Close both torch valves. For the oxygen, turn the pressure-adjusting screw on the regulator until the gauge reads about 25 psi. For the acetylene, turn the pressure-adjusting screw on the regulator until the gauge reads about 10 psi.
- Separately purge both oxygen and fuel gas lines.
- Open fuel gas valve 1/2 turn.
- Ignite flame with striker.
- Increase fuel gas flow until flame leaves end of tip and no smoke is present.
- Decrease until flame goes back to tip.
- Open oxygen valve and adjust to neutral flame.
- Depress oxygen lever and make necessary adjustments.