Air Solenoid Valves Allowed Inside An Electrical Enclosure?

[petersonra]

This is for a DI Water system, similar set up.

Looks a lot like something I might have designed years ago.

Must have done hundreds of them.

 

[Allclear]

I asked our UL field engineer about this a couple months ago, he said "If they only receive air and no liquid or hazardous gasses etc they are fine. If they get electrical voltage they will still need to meet all the electrical requirements of any component and they also need to be evaluated for the panel type rating."

 

[kwired]

I asked our UL field engineer about this a couple months ago, he said "If they only receive air and no liquid or hazardous gasses etc they are fine. If they get electrical voltage they will still need to meet all the electrical requirements of any component and they also need to be evaluated for the panel type rating."

Problem is air may have oil or water in it and either the valve(s), piping, or manifold may develop leaks over time. Oil may not be very harmful to most the electric components in said panel, but still makes a mess of everything.

 

[petersonra]

Problem is air may have oil or water in it and either the valve(s), piping, or manifold may develop leaks over time. Oil may not be very harmful to most the electric components in said panel, but still makes a mess of everything.

We have now strayed away from whether it is permitted to whether it is a good idea, or that something might fail over time and lead to a negative consequence.