Pneumatic Diagram - What Is Pneumatic Circuit Diagram?

In pneumatic circuit diagrams, the components are arranged the way that the flow of energy always flows from the bottom up (as opposed to electrical schematics). Thus the pressure source represents the first element, the actuator, the last element.

How do you read a pneumatic diagram?

The number of 'position and flow boxes' that make up a valve symbol indicate the number of valve positions. Flow direction is indicated by the arrows in each box. These arrows represent the flow paths the valve provides when it is in each position.