Right....all that is pretty clear....guess what I was thinking is that when
you run pipe for gas flow, if you have too small of a pipe (akin to using
too small of wire) that it makes it difficult if not impossible to have enuf
flow in that pipe to feed the end device.  Yes of course it depends on
device that is using the air.  In this case, its a burst of air via
solenoids.  I suppose, if you knew the static pressure and the duration of
the air burst, then you could figure out what the size needs to be.

Taking it from another approach.....and this is what I told the
user......rather than rely on a single tank at the end of the 200' of pipe,
have two tanks.  One tank attached to the compressor would bascially keep
the line charged, but also add a second tank (hmmm...a capacitor in the
sense of electricty) that would actually be used for the air burst.  So as
long as you can keep the second tank 'charged' the air bursts would work ok.

Thus, if I can relate the volume of air per burst, and knowing what the
volume of the tank is (pressure will be a constant) then I can perhaps
figure out how much airflow will be required to quickly charge  the second
tank back up, and then using a given pressure, what size pipe will be
required to accomplish this.

Oh...and a PIC will probably be controlling the solenoids  :-)

_________________________________________________________________
Tired of spam? Get advanced junk mail protection with MSN 8.
http://join.msn.com/?page=features/junkmail

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body