11-30-2016, 02:45 PM
(11-30-2016, 12:05 PM)awemawson Wrote: MDPE and PVC are different animals.
Absolutely yes. I was trying to point out some of the issues using plastic piping on compressed air systems.
I should have referred to nylon tubing such as this: http://www.rockler.com/rapidair-compress...lon-tubing One of the big issues as I see it would be the use of CI fittings with tubing. They would simply be the wrong application. There are specifically designed couplings to be used for PEX and for nylon.
"When I move the compressor outside, reinstalled piping with galvz. Just seems like a sounder way of going about it."
Galvanized pipe, fittings etc. should never be used in a fluid power system such as compressed air. The galvanize coating will deteriorate sending small particles into any and every thing connected to the system destroying them. It will not happen overnight, but it will happen.
This is why one does not use galvanized pipe in either a natural gas or propane system as it will destroy the regulator.
If you're concerned about rust either paint the outside of the black iron pipe or cover it with electricians tape.