BASIC PNEUMATICS

Properties of Compressed Air

Availability Easily stored in large volumes Simplicity in design and control Provides linear and rotary movement Low system cost due to low component

cost

Components have long working life resulting in longer system reliability

Environmentally friendly Safety issues are minimized e.g.. Fire

hazards; unaffected by overloads (actuators stall or slip)

Pneumatic actuators in a system do not produce heat (except for friction)

Properties of Compressed Air

Pressure Switch

Compressor DrainCheck Valve

A Basic Pneumatic SystemAir Production and Distribution System

MotorTank

Pressure GaugeRefrigerated Air Dryer

Line Filter

Directional Valve

A Basic Pneumatic SystemAir Consumption System

Air Line Take-off Drain Conditioning Unit

Actuator

Air Compression

Rotary:

Vane

Compressor

Air Receiver

A pressure Vessel (Tank) normally made of metal and installed either horizontally or vertically. This vessel provides a volume of airto be utilized by the system and reduced the loading and unloadingof the compressor.

Air Receiver (Tank)

Air Treatment

All atmospheric air carries both moisture and dust

Inlet Filter •Used to remove large particle dirt from entering the system.

•Used to prevent excessive wear of cylinder, piston rings and other moving parts in the initial stage of the system

Air DryerCompressed air cannot hold the same amount of moisture as non compressed air. Once the air is compressed, some of the moisture condenses in the tank and is removed through a drain valve. The remaining moisture will rust internal components of the system and must be removed. One way this is done by sending the air through an air conditioned chamber which will condense more of the moisture which is present.