How do I identify my pilot valves on my CBW?

The air valves in the CBW are found in the pilot valve manifold box. These valves operate various functions on the CBW such as Drains, Flow-Stops, Flow-Nots, Chemical Flushes and more depending on your tunnel setup. This article will help you identify which pilot valve you are looking for.


PILOT VALVE MANIFOLD:


The Top Row typically contains the pilot valves for Fast Fill (VEFF), Drain (VEDR), Flow-Not (VEFN), Flow-Stop (VEEP), , Fast Fill for Pre-Fill Tank (VEFT), etc.
The Bottom Row typically contains the pilot valves for Steam (VESTM) and chemical flushes (Sometimes marked PERI for peristaltic flush)

NOTE:
A list of all of the valves can be found in the components parts list at the front of the CBW electrical schematic.

On newer machines there will be a yellow tag on the inside of the manifold box cover. It is recommended to take a picture of this label for future use. Printing and laminating a copy of the image to hang from the box is also a good idea.

   
PILOT VALVE MANIFOLD LABEL:

If your machine is not labeled you can find out which pilot valve operates what air device by going into manual outputs and turning the output on and off to see which valve is exhausting air when the output is cycled.  Mark the valve for future use after you identify the function.  You can also trace the air tuning from the device to the air pilot to confirm the functional name of the pilot.  

The tag above shows our conventional layout, but CBW's are custom machines and your valve box will probably be different.  


Related Links:

1. How does a 3-way air pilot valve work?
2. Flow Stop Functionality and Parts
3. Why is my shuttle valve leaking air?