Basic Principles of Pneumatic Control

Pneumatic control systems are designed as pneumatic circuits. These circuits are formed with various components like pneumatic valves, cylinders, and directional control valves. A pneumatic circuit has two primary functions:​

1. Using one valve to control other valves
2. For controlling the release and injections of compressed air inside a cylinder

When creating a pneumatic circuit diagram, individuals must follow some basic rules. These rules include:

1. A diagram must represent circuits in static form while assuming there is not a supply of pressure. Placing pneumatic components on the circuit functions as the assumptions.
2. One or more squares form pneumatic symbols for directional control valves. Exhausts and inlets should be drawn underneath squares, and the outlet is put on top. Each specific function of a valve should be represented by a square. Arranging squares horizontally happens when there are two functions or more.
3. Arrows are drawn to represent the flow of direction for air current. When internal parts are not connected with external ports, a T symbol should be used.  The symbol ⊙ is used under squares and represents air inputs. The symbol ▽ is used to show exhausts.
4. All pneumatic symbols (of operational components) should be put on the outside of squares. Typically, they are divided into two classes—manual and mechanical.

Pneumatic Controls

Pneumatic control systems are designed as pneumatic circuits. These circuits are formed with various components like pneumatic valves, cylinders, and directional control valves.

For more information on designing pneumatic control systems and using pneumatic valves, you should give our team a call today. 

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