[TheForge] cutting propane cylinders

[Ralph Sproul]

I discharge a CO2 fire extinguisher into a tank, then continue to
chargedisplace fuel tanks volume with CO2 and run a flow meter into them at
40 cfh the entire time I'm welding..........no explosions have occured.

Ralph

----- Original Message -----
From: <xlch58 at swbell.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Tuesday, March 29, 2005 2:01 PM
Subject: Re: [TheForge] cutting propane cylinders


> An old dodge for welders arc welding potentially explosive tanks was to
> direct the exhaust from their gas welders into the tank to displace any
> oxygen with essentially inert gases.    You need a long hose to make
> sure any sparks are out by the time the exhaust gets to the tank.   Even
> then, explosions do ocur.
>
> Charles
>
> Gladish Family wrote:
>
> > Only just after washing it.
> > I figure if the candle is suicide, then so is the hacksaw (sawzall),
> > since it throws sparks.
> > If I let the candle burn down and out, then the O2 is exhausted and
> > the I have a neutral atmosphere inside.
> > AG.
> >
> > Bruce Freeman wrote:
> >
> >> Would you burn a candle in an old gasoline tank?  Sounds like attempted
> >> suicide to me.
> >>
> >> The reason for filling a tank with water is to displace the air (which
> >> may contain an explosive concentration of fuel) and to cool any sparks
> >> that might otherwise occur.
> >>
> >> Bruce
> >> NJ
> >>
> >>
>
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