…" The sequence is important because if oxygen is
allowed to flow into the torch first, then fuel is added, the mixture
is highly flammable. A small explosion could easily turn into a large
one. This is why the fuel is always turned on first, and left on til
last, so that there is insufficient oxygen present to react with all
of it at once."
There have been so many messages about turning the torch on and off.
Is there any definitive answer as to the correct way? I was also
taught, gas on, oxy on, oxy off, gas off (GOOG). I have read this
thread with interest and see for everyone who practices GOOG there
just just as many who practice GOGO (gas on, oxy on, gas off, oxy
off). Apparently different suppliers also offer different
Can anyone out there settle this once and for all?
I use acetylene/air and when I first started 10 years ago I always
got pops when I turned my torch off until my instructor said not to
turn it off rapidly. Just turn the knob off gently. Once I started
doing that, I eliminated pops all together. But would popping be as
dangerous with acetylene/air as with acetylene/oxy? There is no way
to turn off the air on acetylene/air torches.