[EricH]

Originally Posted by itsme

We put teflon and now it's fine (just a tiny bit air running out, but not really significant). But if we screwed a bit the valve (the inner screw-nut) did it change the calibration?
If you say there is already a default relief valve on the compressor, is it a must to put another relief valve in the circuit?

The one on the compressor is to ensure that you don't go over a safe pressure. The manual one (with that black valve) allows you to drain the air manually. You probably want that on so you don't have to run a cylinder multiple times to drain the system.


I honestly don't know about the 125 psi valve.