On Fri, 06 Dec 2013 20:52:04 -0500, "Pete C."
wrote:
Ignoramus5722 wrote:
I have a strange sounding idea. I want to have an extra compressed air
tank in my system. I have a bunch of tanks at this moment to choose
from. This way, I could run air hungry tools like breakers, etc,
intermittently but longer.
So far, so good, and nothing complicated. I have a whole bunch of
tanks right now, and thought to do something nice for my shop and have
an extra tank.
Examples of tanks I have a
http://igor.chudov.com/misc/ebay/tmp/Marengo/186.jpg
http://goo.gl/PdkzbM (Tank with "QT-15" lettering on left)
However, I also realize that with a big extra tank, it will take so
much longer for the air system to come up to pressure. This will be my
wasted money, as people will be waiting longer to use compressed air.
So, I thought, can I have a valve, that would not fill the tank, until
system pressure reached 120 PSI. And then it would shut off again if
the pressure ever falls to below 90 PSI.
To use the accumulator tank to supply air, another pipe would be used
with a check valve.
This setup makes sense to me, as
1) I would get the system to reach pressure quickly and
2) I would eventually get a supply of air in the accumulator,
without ever dropping the system pressure below 90 PSI.
I do realize that I can accomplish what I want, with a electric
pressure switch and a normally open pneumatic valve. But I thought,
perhaps, there is a purely pneumatic valve that does this? What would
it be called?
Add compressor capacity, rather than tank volume, presuming you have a
reasonable size tank now. Set the pressure switch for the second
compressor to come on as say 10 psi below the first's cut in pressure so
it will only come on when the first is unable to keep up with the
demand.
Absolutely! Good answer! Only answer!
Gunner, who does commercial air compressors and systems
--
"Owning a sailboat is like marrying a nymphomaniac. You don’t want to do that
but it is great if your best friend does. That way you get all the benefits without any of the upkeep"
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