Ya beat me to that one Alvin, you young guys are just to quick
for me, and you're up past my bed time also. See, you're
talkin' relativity now, it's all relative to where you are
standing in space.
PVC is rated at around 300psi, but like a soap bubble, a blow
from a hammer or bump it with a falling something and it can
burst. Bad stuff to run compressed air thru.
I may have miss understood what was posted earlier, but I
though mention was made about corrosion in copper pipes. I've
seen copper water pipes that were in homes for thirty years
and the inside looked as good as it did the day they put them
in. The exposed lead on the other hand does tend to oxidize
over time.
I'm running black iron on the pipe that's outside the walls or
ceiling and I'll run copper where it's gonna be up in a joist
space or in an enclosed wall.
I've seen rubber hose permanently installed in the attic or
walls to get from one end of a building to the other. Bad idea
in my opinion, unless it's just used as a temporary deal for
a single job. In my mind flexible hose should only be used as
the terminal point in an air system and kept as short as possible.
I would love to have a dryer at the compressor. I had given
some thought to several different ways to accomplish that.
A coil of copper, a series of switchbacks of copper, a
refrigerant heat exchanger if I could find one large enough
that would take the pressure. When I was working in QC
running CMM's we had refrigerated dryers that supplied our
machines with bone dry air, big bucks though and out of the
reach of the average Joe like me, and a bit of over kill for
an auto hobby shop.
dg
Last edited by Denny Graham; 06/09/2015 1:09 PM.
