On Fri, 23 Dec 2005 22:54:58 GMT, Rich Grise
wrote:

On Thu, 22 Dec 2005 07:56:49 -0500, Peter W. Meek wrote:

On 20 Dec 2005 20:08:22 -0800, wrote:

You can connect a large series of tanks to one compressor. It provides
a larger volume of air before the pressure drops enough to turn on the
compressor.

The connecting lines between the tanks should be larger than the outlet
pipe.

Why do you say that? I use extra tanks to AVOID
having to run large lines for long distances.
It gives me near-full pressure for high-volume
uses and lets the compressor and long lines
catch up during "rest" periods.

I haven't yet, but I have considered making
a 25# propane tank into a surge tank to
allow me to run a large air wrench at the
end of a long, small hose, with the tank and
a short length of larger hose at the point
of use. Lugging the tank seems like it would
be easier than managing (and buying) such a
long piece of 1/2" hose. (I'm talking several
hundred feet.)

Isn't there some kind of law against using a propane tank for
compressed air?

Thanks,
Rich

If there isn't, there certainly should be in interest of the
preservation of bureaucracy.

Despite the fact that the design working pressure (not proof
pressure) of a propane tank is higher than a single-stage shop
compressor can produce -- and considerably higher than the release
point of the safety valve that every compressor has or should have --
everyone knows that propane is explosive and there'll always be a few
atoms of it left in a propane tank. The sparking of the brushes
in an air tool would surely blow up many constituents. I mean,
lookit the sparks inside an electric drill, right? Think what they
must be like inside a powerful air tool that can tighten lugbolts
much tighter than an electric drill can! Just because you don't see
any sparks doesn't mean they aren't there, right?

There oughtta be a law...