Dealing right now with decision of a big control panel for PLC and servo drivers. Almost 50% of space will be available after installing electric control/power components and thinking in using the rest of space for installing some valves and tubing for a purge system of this equipment. Assuming ideal conditions and safety of air supply, does any one of you can tell weather or not should I mix pneuamtic with electric componentes in a same enclosure. Please see pic attached.

I worked on a design for an EU customer a few yers ago [French} and their Safety Person made us house the electronics and pneumatics separately.  The theory was "Two Energy Sources in the Same Enclosure."  A Tech might "Safe" one energy source [the one he's working on and thinking about] but not the other source.  We put the pneumatics in a mechanisms area but had to Safety Interlock the cabitet door [there by making it impossible for the Tech to run the machine with the door open unless he had a Magnetic Safety Key.

It's done frequently enough(ball valve). If you have components exhausting air into the enclosure make sure there is a release point to avoid pressurinsg the enclosure. Make sure the release point doesn't reduce the IP rating below the client spec.

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