Pneumatic Systems
Content
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
Properties of Compressed Air
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)
A Basic Pneumatic System
Air Production and Distribution System
Line Filter
Compressor
Pressure
Check
Motor
Valve
Refrigerated
Pressure Air Dryer
Drain
Switch
TankGauge
A Basic Pneumatic System
Air Consumption System
Actuator
Drain Unit
Conditioning
Directional
Valve
Air Line Take-off
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 air
to be utilized by the system and reduced the loading and unloading
of 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 Dryer
Compressed 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.
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
Properties of Compressed Air
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)
A Basic Pneumatic System
Air Production and Distribution System
Line Filter
Compressor
Pressure
Check
Motor
Valve
Refrigerated
Pressure Air Dryer
Drain
Switch
TankGauge
A Basic Pneumatic System
Air Consumption System
Actuator
Drain Unit
Conditioning
Directional
Valve
Air Line Take-off
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 air
to be utilized by the system and reduced the loading and unloading
of 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 Dryer
Compressed 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.
