4 Basic Pneumatic Circuits

Curious what the basic types of pneumatic circuits are?

According to Hydraulics & Pneumatics:

The following four pneumatic circuits can be used for air preparation, double-acting cylinders, continuous cycling and hand control applications. They can also be subsystems in larger circuits.

Air Preparation

Before compressed air is used in a pneumatic device, it must be properly prepared so that it does not damage components. Here is a schematic (below) for a pneumatic device that prepares compressed air coming from a single source.

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