I doubt very much that Andre, or anyone else, is in any danger of a propane
tank
exploding, provided it's not rusted and the pressure relief valve is working
and in
place. Back around 1962, I was in the propane (bottled gas) business and I
needed
a portable air tank to carry on my oil burner service truck. I measured the
pressure
in a full 100 Lb. tank and it was around 125 psi. Since these tanks sat out
in the
sun, it was not uncommon to see one get too hot, build up pressure and the
relief valve would let go. Also, since the tanks are at 125 psi full and
customers
use them until almost entirely empty, the pressure would be down to only a few
psi, so the tanks must have been designed for varying pressures. I made up an
adapter to go from the left hand threaded tank valve by using copper tubing,
an
adapter off of a LP (propane) regulator and flare fittings. Then I installed
a kit that would go on a regular portable air tank. This consisted of a
fitting with a pressure gauge, an inlet valve similar to what's on a car tire
for putting air in and a short (4') hose with a standard quick release hose
fitting on it. I usually put 125 psi in, but have gone up to about 140 psi. I
still use it, in fact I had to bring up a couple of flat tires using it the
other day. The tank I'm using is a twenty pound tank, like you see on most
outdoor bar-b-que grilles.
Joe Young
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