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Posted to rec.crafts.metalworking
Gerald Miller
 
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Default Blown compressor tank

On Tue, 23 May 2006 07:16:55 GMT, Gunner
wrote:

On Mon, 22 May 2006 23:51:56 -0500, "AL" wrote:

I agree that corrosion was the culprit, but corrosion of the safety valve
and not the tank. I never understood why they couldn't make a tank with a
weak spot that would blow out first before the entire tank ruptured.
Obviously this is what the spring loaded safety valve is for, but those can
fail (as we've seen). Perhaps during the manufacturing process, have a flat
spot ground or milled near the bottom of the tank (thick enough to withstand
normal pressure, but slightly thinner than the rest of the tank so that this
spot will blow out first).

I have a Bostitch roofing nailer with a "spot" on the cylinder which looks
like a shallow plunge cut from an endmill. If over pressurized (for example
if someone were to connect it to a 2000 psi nitrogen tank), this spot will
blow out rather than the whole cylinder exploding.

I think haveing that FUZE spot on top would be far better than on the
bottom for a number of reasons, not the least being rust..and having
it blow out and launching the compressor into orbit.

Remember when mother was cooking beets in the pressure cooker and you
forgot to watch the indicator as you had been told, and suddenly there
was a large red spot on the ceiling?
Gerry :-)}
London, Canada