[AT] Pressure drop?

[Francis Robinson]

	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