1/2" gas pipe to valve. Valve to copper fitting adapter. Then a copper tube fitting to the adapter with a few inches of copper tube. Then clamp the hose on the copper tubing. You can get the parts at any hardware store.
Natural gas pressure is going to be a few ounces. No regulator needed. You are counting on volume to supply enough gas for the flame. You will have enough volume for the 3-A for sure. Larger torches may be iffy.
hmm..from what i've read, u have to turn off gas first to prevent flashback, not oxygen. The oxygen passing through after turning off the gas will clear out the mixing chamber and cool the torch tip a little.. I have no experience tho'...
I've always been told that when you're working with a torch that you turn off the gas first so that the oxygen will blow out any carbon that could accumulate in or on the tip. That's with an cutting torch though.
With a surface mix torch it probably doesn't matter. With a premix torch my experience is that shutting the gas off first causes a flashback which can be dangerous. So, my non-professional, non-expert opinion is that good practice should cut the O2 first in all cases.
It's fuel on first and off last. The theory is that if you let the fuel out of the lines first then there is room for oxy to back up into the fuel line and possibly cause flashback which might go back to the tank. If the fuel line is full of fuel then oxy can't get into the fuel line to cause combustion. This only applies to internal mix(premix) torches. surface mix lets the oxy right out and it can't get back in.
appriate the videos do u have a vent in that wall your torch is facing?
stinkypinky1904 7 months ago
Thank you!
lynncom44 1 year ago
Thanks a million - Very helpful!!!!
Plushcat143 2 years ago
Can not tell you how much this helped me. Took one class.. became hooked. this was a nice refresher...thanks thanks thanks!!
imzaadi 2 years ago
Thank you very much youre videos are great, very helpful
drum42891 2 years ago
Also how do you connect the hose to the natural gas line?
drum42891 2 years ago
1/2" gas pipe to valve. Valve to copper fitting adapter. Then a copper tube fitting to the adapter with a few inches of copper tube. Then clamp the hose on the copper tubing. You can get the parts at any hardware store.
TimiaGlass 2 years ago
I also have natural gas in my house. How do you know the hose pressure without a regulator?
drum42891 2 years ago
Natural gas pressure is going to be a few ounces. No regulator needed. You are counting on volume to supply enough gas for the flame. You will have enough volume for the 3-A for sure. Larger torches may be iffy.
TimiaGlass 2 years ago
hmm..from what i've read, u have to turn off gas first to prevent flashback, not oxygen. The oxygen passing through after turning off the gas will clear out the mixing chamber and cool the torch tip a little.. I have no experience tho'...
granmastervoic 4 years ago
O2 off first is what I was taught. The Bethlehem Apparatus manual many of their torches state the following:
"To extinguish the flame you should always turn off the
oxygen before the gas. Do not over tighten the valves."
I suppose the best thing to do is consult the manual for your torch and do what it recommends.
TimiaGlass 4 years ago
I've always been told that when you're working with a torch that you turn off the gas first so that the oxygen will blow out any carbon that could accumulate in or on the tip. That's with an cutting torch though.
tobester37 4 years ago
With a surface mix torch it probably doesn't matter. With a premix torch my experience is that shutting the gas off first causes a flashback which can be dangerous. So, my non-professional, non-expert opinion is that good practice should cut the O2 first in all cases.
TimiaGlass 4 years ago
It's fuel on first and off last. The theory is that if you let the fuel out of the lines first then there is room for oxy to back up into the fuel line and possibly cause flashback which might go back to the tank. If the fuel line is full of fuel then oxy can't get into the fuel line to cause combustion. This only applies to internal mix(premix) torches. surface mix lets the oxy right out and it can't get back in.
hibraisil 4 years ago
VERY good this is exactly what i was thinking about when i asked you to make this series. Great job man.
FunWithGlass 4 years ago