Creating the Lightest Pneumatic System

[ebarker]

This is slightly off topic from the OP but I have some questions;

1) in the past there was a max CV rating on pneumatic solenoids. The only limitation is 1/8 NPT.

2) in the past there was a max volume of stored air.

I see no limitations on those items this year. Is that everyone's interpretation ?

Many years ago the KOP had a simple Festo pneumatic valve that you connected to each end of the cylinder, and to the supply. There was ONE electric solenoid that operated the valve. We prefer to use that type of valve.

I'm interested in these valves from Automation Direct.

There are the double and single solenoid types, very economical. Can someone explain the advantage of double versus single solenoid.

Thanks, Ed