I'm very new to all of this but here's what I've heard the consensus is: 1. 1/4 turn on acet, but open the oxygen all the on the tank. The O is high pressure and you need to back seat the valve. Opening part way can allow O to leak around the stem or seal. 2. Supposedly they changed the "A before O" to "O before A". Not sure why but from what I heard the forever was was A then O and now the society of welders or whatever decided the other way was better. Glad I don't need a new tip for heating. I used that one for cutting for the first time and now needed to heat something. Thanks.
What I have seen and read is that torch manufactures say to shut off O before A, but nearly everyone else says A before O. I'm nearly positive that when I was in shop class thirty ago the teacher told us to shut of the preheat oxygen first. That is the knob closest to the tip. That agrees with the book that came with my new torch. If you hear a loud snap when you turn the knob off, don't do that again! My guess is that they changed the order because everyone forgets which oxygen to turn off first so if you turn off the acetylene first there is only one knob and the only downside is the soot build up.
And while I'm at it, you need to explain to people why it's imperative to open the oxygen slowly, and why it's wise to turn your body and face away from the tank when doing so.
You probably want to mention why the acetylene is so volatile. It’s because of how it’s stored in the tank. Proper psi is really important because sometimes the cylinder can’t produce enough gas and that can cause blowback. Especially in a colder environment.
It's not so volatile because of how it's stored in the tank. It's stored in the tank the way it is _because_ it's so volatile. It's volatile because of its molecular structure.
@@lajoswinkler Uh… I dunno. Sounds like semantics to me. It’s not just stored in a tank. There’s a monolithic filler and acetone in acetylene tanks that can interfere with the air pressure when the tank is low or cold. And conversely, pressure increases the warmer it gets. So yeah it controls the volatility but in certain conditions it does it too well.
Best details on the valves & gauges settings. More of that is good
Very helpful thanks!
Thanks for the awsome video
I'm very new to all of this but here's what I've heard the consensus is:
1. 1/4 turn on acet, but open the oxygen all the on the tank. The O is high pressure and you need to back seat the valve. Opening part way can allow O to leak around the stem or seal.
2. Supposedly they changed the "A before O" to "O before A". Not sure why but from what I heard the forever was was A then O and now the society of welders or whatever decided the other way was better.
Glad I don't need a new tip for heating. I used that one for cutting for the first time and now needed to heat something. Thanks.
What I have seen and read is that torch manufactures say to shut off O before A, but nearly everyone else says A before O. I'm nearly positive that when I was in shop class thirty ago the teacher told us to shut of the preheat oxygen first. That is the knob closest to the tip. That agrees with the book that came with my new torch. If you hear a loud snap when you turn the knob off, don't do that again! My guess is that they changed the order because everyone forgets which oxygen to turn off first so if you turn off the acetylene first there is only one knob and the only downside is the soot build up.
Simple way to remember is you only ever want the acetylene alone. So startup: acetylene then oxygen. Shutdown: oxygen then acetylene.
Thanks for this quick intro!
good video
Those tips are made for cutting if you do heating you will broke them . The oxygen jet must flow from the inside to cool them too
And while I'm at it, you need to explain to people why it's imperative to open the oxygen slowly, and why it's wise to turn your body and face away from the tank when doing so.
You forgot dark glass
@@Yeye3040 for a cutting torch? Nah. I might wear some safety glasses for fear of slag, outside that, no need
safety goggles for acetylene are available on amazon for like $10-15
You probably want to mention why the acetylene is so volatile. It’s because of how it’s stored in the tank. Proper psi is really important because sometimes the cylinder can’t produce enough gas and that can cause blowback. Especially in a colder environment.
It's not so volatile because of how it's stored in the tank. It's stored in the tank the way it is _because_ it's so volatile.
It's volatile because of its molecular structure.
@@lajoswinkler Uh… I dunno. Sounds like semantics to me.
It’s not just stored in a tank. There’s a monolithic filler and acetone in acetylene tanks that can interfere with the air pressure when the tank is low or cold. And conversely, pressure increases the warmer it gets.
So yeah it controls the volatility but in certain conditions it does it too well.
Safety Sally's gonna Safety Sally
And scene. Haha. Good tutorial
Gave you a thumbs up.
Other channels say to shut the OXYGEN off First.
Don't!
this tip is for cutting
George Siatos Yes. He says so at 1:20.
What regulator output pressures did you use?
Give him time to answer, it's only been 5 mo
This guy reminds me of the gun range instructor who fired the gun accidentally.
Why did he wave his hand in front of the nuetral flame?😂
Please!
Heat is hot
Ok
Gauges???
101 lesson bro
Set your station up before you start your Video lol 😂
ALWAYS SHUT OXY OFF FIRST!! wth man you going to get these kids fried
OMG
this video shouldn't be on CZcams
is very unsafely