vtsteam
1. Correct. Pressures do not seem to be critical. Currently using 8psi propane and about 20 psi air.
2. The wleding tip size is immaterial. I gave the tip # in an attempt to further identify the set up. The tip has been cutoff and the thing is used as a method to connect the Turner nozzle to the acetylene torch. The 5/16" flare nut was drilled oversize about .040". From .320" to 359" to fit over the welding tip. Also about 1/8" was removed from the threaded portion of the flare nut.
3. All oricies are removed from the Turner torch. The base of the torch is solid brass and has plenty of "meat" to be turned and threaded 1/2"- 20.
4. Correct.
The rosebud is an outsized propane torch that I pick up from a bargain table several years ago. It is designed and made exactly like the smaller Turner burners. That is all I know about it. I removed the orifice.
I am using tank flashback arrestors. Was not aware there are similar items for use at the torch. I agree tape is not a good idea, but I thought it was good enough for a trial run. The nozzles run so cool under the test conditions (no heat blowback) the tape never even got soft. But I'm going make some sleeves (maybe out of copper plumbing fittings?) and solder them on.
A couple more pictures. First includes the rosebud to give you an idea of its size.


Bill