Topic: Re: Rosebud tip
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[quote="Puddles"](quoted from post at 16:18:32 03/01/13) Did you pickup a set of flashbacks also?
Hay, thanks all. 1st, yes I have flashbacks.
I turned up oxy and gas pressures and that took care of it. It shuts down like it is supposed to
Re: Rosebud tip in reply to ldj, 03-01-2013 15:32:36
|Rosebuds aren't made to be throttled back. There |
shouldn't be any black soot from the acetylene
when you turn the oxygen on. The higher
pressure/flow of gas moving through the rosebud
helps to cool it off. With too low of pressure it
will backfire(pop) when you shut it off and even
when using it. Getting it too close to the hot
work piece will also cause backfiring even with
the right gas pressures. Flashback arrestors
prevent the backfire from going back through the
hoses and causing a much more serious flashback
and/or explosion. Without knowing the size of your
rosebud, I'd guess about 10 PSI acetylene and 20
to 30 oxygen should be fine. A real big rosebud
needs 15 Acetylene but usually also needs 2 or
more cylinders manifolded together to supply
enough acetylene without drawing the acetone out
of the cylinder(s).
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