On-Line Compressible Flow Pressure Loss
http://www.freecalc.com/gasfram.htm
OSHA and insurance companies will make you pay for PVC. As MJC points, out lawyers have no issue with it.
Thanks for the post guys...
Yes, a couple CF is over estimating.
Moisture removal is the prime objective.
I have the option of burying the pipe loops, without the cost of digging, as it would be buried by fill at a site.
Condensation, I realize would need removal on both loops and that damage...
I am not an Engineer
Just purchase a 5 hp Curtis two stage compressor...
I want to create an intercooler and aftercooler for this compressor. Both coolers will be made from a copper pipe loop (two 1/2" L type rigid each loop), buried 5 feet in the earth. Moisture removal will be taken care of...