Pneumatic flow control

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Pneumatic flow control is the use of air as a control medium, or as the controlled medium, in which one medium controls the flow of another.

Pneumatic flow control taxonomy[edit]

There are two possible pneumatic flow controls: those that are controlled by pneumatics, and those that control pneumatics.

Pneumatically controlling valves[edit]

Pneumatically control valves are valves that control the flow of pressurised air. One of the most common types of controlling valves is the needle valve. Needle Valves are used to control the rate of flow in a pneumatic system by controlling flow in both directions. Material enters the input port, travels through an adjustable orifice and out the output port.[1] Another medium such as water (hydraulics) or electricity, for example, may also be used as an actuator.

In some cases, the valves are operated manually rather than automatically.

See also[edit]


  1. ^ valves with flow rates up to 60 scfm at 100 psig Fluid Power World

External links[edit]