Connect Pneumatic circuit properly setting the order of the ports starting from the source of the air to the cylinder. Goal is to move the cylinder to the extend and retract position. There are two types of cylinders that you have to use: single acting cylinder and double acting cylinder. Since the cylinder will be used in dangerous environment it is very important to select the components in that way so that the Cylinder is in retracted position always when it is not actuated.

Wrong position selected.

Single Acting retract end

Single Acting extend end

Mono Stable retract end

Mono Stable extend end

Bi Stable retract end

Bi Stable extend end