[AT] Pressure drop?

Lew Best bee_keeper at earthlink.net
Tue Jan 29 21:24:45 PST 2008


I'd think with zero use the pressure would be the same at both ends but
friction might cause a drop at the end of the line if there's flow to a
tool using air?  Just guessing but it seems logical to me.

Lew Best near Waco, TX
 
-----Original Message-----
 group
Subject: [AT] Pressure drop?

	OK, who knows compressed air pressure drop off of the top of
your head? 
:-)
	I am going to run a compressed air line from one shop to the
other. It 
will run inside of an underground conduit in 1/2" PEX tubing. It will 
basically have one fitting (full 1/2") at each end of the run. The run
will 
be 250' long with no fittings at all in the line itself. If I have 125
PSI 
at one end what kind of drop can I expect at the other end? What would
it 
be at 800'?
	BTW, PEX is rated and recommended for compressed air. I was
reading the 
print on the pipe today and for water what I have on hand at the moment
is 
rated at 100 PSI at 180 degrees F. It will not get hard and brittle and
it 
will not shatter on impact. It is cross linked polyethylene and is not 
affected by oil.
	I am really in love with this stuff for water plumbing.





--
"farmer"


Francis Robinson
Central Indiana, USA
Robinson at svs.net
 

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