Vacuum cutoff solenoid

[DonRotolo]

Try this post or search under vacuum solenoid.

Good luck!
Don

[TubaMorg]

Originally Posted by Don Rotolo

Try this post or search under vacuum solenoid.

Good luck!
Don

Thanks for the "search before you post" response. However, your suggestion (and others generated from search) no not answer MY question. Which is essentially, what do the small PE and X ports do? As in is the kit double solenoid able to actuate in a vacuum environment if provided pilot pressure via one of these ports?

[Andrew Blair]

I was wondering the same thing, looking at the valves the other day. I would assume so, looking at the extremely small size of the input. I do not however understand why there would be two ports, and not just a single "pilot" line.

[TubaMorg]

After staring at the drawing of the internal paths, I am guessing that the PE and X ports are for venting pilots' pistons and therefore would not work for providing external pilot pressure. SMC has other valve models that are designed for this. The internal pilot pressure path branches off of the P port at the top of the valve body. The PE and PX ports vent off the backside of the actuating pistons allowing them slide back and forth.