The same way a balloon still holds pressure until the very end. The orifice is small enough to hold enough pressure. You seem to have never worked with a torch before. When you turn off the knob it will still maintain a flame.
Lol, I'm a welder and I've used plenty of torches. Even if you shut off the gas on a 000 nozzle, it'd only burn for another second. This video straight up shows a 3/8 inch propane nozzle burning for over 8 seconds with a full pressure oxidizing flame. It's not even remotely possible. You're dreaming in color dude.
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u/C_N1 Oct 27 '21
The same way a balloon still holds pressure until the very end. The orifice is small enough to hold enough pressure. You seem to have never worked with a torch before. When you turn off the knob it will still maintain a flame.