This means that either valve X OR Y can be pressed to make the piston go positive. Pneumatic OR circuit This type of circuit is used to allow a machine to be turned off from different positions.

PVC air cannons are great, and everyone should build one of these at some point in their life, but what really makes this build exceptional is the valve. [Ben] created a piston valve for this ...

ISA96.03 – The basic requirements for pneumatic valve actuators of the single- and double-acting types used for on-off applications. The standard will define the basis pneumatic actuator types (i.e., ...

Instead of trying to make an air-tight piston, he added a rubber membrane and a clever valve system to create a diaphragm air engine. This GIF is worth 115 words A round rubber diaphragm with a ...

Prepare equations required to determine an actuator (i.e. pneumatic, hydraulic, or electric) size based on piston or effective diaphragm area and spring characteristics. This subcommittee will address ...