Two regulators for one piston

[gpetilli]

Originally Posted by Edxu

Thanks, this is what we were worried about.

Could anyone else confirm if that is illegal or not?

I think your original post is legal, but Al is the CD rules guru (and a good one at that). Given the uniqueness of this, you may want to submit an official Q&A.

The way I interpret your question is:

-------------- portA
|
-
valve |
-
|
----2nd Reg -- portB

you only have one valve and its outputs are not connected together (other than through the piston, which is typical). So the real question is can you have a regulator after a valve (or can you have two working pressures). I don't see a rule that prevents this - and it should help you exhaust the air out of portB quicker.

[Bob Steele]

I don't see why this would be illegal. You are allowed to use regulators/accumulators anywhere you wish. You just have to have the mandated one that regulates the working pressure of your system down to 60 psi. Beyond that point you can have regulators anywhere you wish. Of course all they could accomplish would be to lower the pressure into a given cylinder or portion/stroke of a cylinder.

You are not plumbing the outputs of 2 solenoids to the same cylinder.

As always, your best bet is to ask in Q/A

Al may have misunderstood your initial question. His statement is entirely correct but it doesn't answer your specific question.

He is the Chief Robot Inspector... and not just a "Rules Guru" by the way