Re: How do I drop pressure below 30 PSI?
 

Changing cylinder bore will also change the lengths and may impact the overall design.

Adding a regulator to the system between the solenoid and the cylinder you have will reduce the force you are applying.

You can check the rules, and also maybe submit a question to the GDC to confirm.

Re: How do I drop pressure below 30 PSI?
 

We have been firing our SMC 24v solenoids at ~20 and ~30 PSI with no problems. Perhaps it's just the model of solenoid you're using.

Re: How do I drop pressure below 30 PSI?
 

Regulators after valves are legal

Re: How do I drop pressure below 30 PSI?
 

Okay, Thank you everyone.

We are using festo solenoids, ours say, 12/24 volts on them so I guess we can use whatever voltage we want. I can hear mine fire even without pressure. Perhaps they work under 20 PSI like someone said.

We decided to just place a regulator after one the of the values. We lowered the PSI to 45 PSI.

The change in 15 PSI really helped.

Thank you everyone. Now theres just one more problem, but I will start new thread for that one.

Re: How do I drop pressure below 30 PSI?
 

Older-style Festo solenoids only require about 17 PSI to fire. If you can deal with a lower co-efficient of flow, I'd recommend Humphrey 310 or 410 series solenoids. They can run on anything above 14 PSI. Getting a narrower cylinder is a good idea as well, we have a few Clippard cylinders with a 3/8ths inch bore. This will give you about 6 lb of force on the output