Rich S. wrote:
"Morgans" wrote in message
...
It does say that they have to be secured somehow, or in a rack.

That's so's we don't knock them over with our fire streams and bust their
little heads off. Picture it. Firefighter crawls into burning room. Opens
nozzle. Tanks falls away from him. Valve busts off when it hits floor. Tanks
returns favor back at firefighter. Ouch!

Did you se the Mythbusters episode where they decapitated a cylinder and it
whooshed through the concrete block wall?

Other than that, the reason to use an Acetylene cylinder while upright is
that the Acetylene is dissolved in Acetone which is then infused in
diatamacious earth within the tank. If used in anything but a vertical
position, the Acetone may escape through the piping and hose.

See
http://www.airproducts.com/nr/rdonly...0/safety13.pdf

Rich S.


More on acetylene---T.A. Wells,Chief Engr. for Beech, says, carryover of
acetylene into a weld will contaminate it--He also stated, leave a small
% in the cylinder to prevent rapid boil-off & carryover at the last
moment of use.

He wrote a teriffic book--Well's Manual of aircraft materials and
manufacturing processes.

Jerry