"Koi-Lo" wrote in message
...
On Wed, 8 Mar 2006 17:19:51 -0500, "digitalmaster"
wrote:

"Roy" wrote in message
t...
Been using an acetylene regulator on my propane foundry furnaces for
a
few years now, works just fine....I don;t know about the 2-15 range,
but even on an acetylene cylinder it was easy to run pressures up
past
the recomended range.......perhaps accuracy of gauge / reg is off at
a
higher output pressure, but for my use it is certainly not
noticeable.


snip


Pretty sure most who use acetylene is aware of this, but it does not
apply if a acetylene reg is use with propane.

It is not a good idea to run acetylene at pressure above 15 psi.Above
15 psi
acetylene is unstable and can spontaniously explode.To acheive higher
pressure in an acetylene cylinder the acetylene is dissolved in
acetone.Hence the red marking for 15 psi and above on the regulator.


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The original frugal ponder ! Koi-ahoi mates....

You would be astounded at the number of people who use a torch daily and do
not know why the acetylene regulator redlines at 15 psi.