1. BASIC PNEUMATICS

2. Properties of Compressed Air
Availability
Easily stored in large volumes
Simplicity in design and control
Provides linear and rotary movement
Installation
Low system cost due to low component cost

3. 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)

4. Parts of a Pneumatic System
What are they?
and
What do they Do?

5. A Basic Pneumatic System Air Production and Distribution System
Compressor
Line Filter
Pressure Switch
Check Valve
Motor
Refrigerated Air Dryer
Pressure Gauge
Drain
Tank

6. A Basic Pneumatic System Air Consumption System
Actuator
Drain
Conditioning Unit
Directional Valve
Air Line Take-off

7. Air Compression
Reciprocating:
Single stage
Double Stage

8. Air Compression
Rotary:
Screw
Vane

9. Compressor

10. 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)

11. All atmospheric air carries both moisture and dust
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

12. 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.

13. Regulating and Conditioning
The compressed air to be used in a system needs to be treated because of contamination inside the system. An example of this could be the scaling of piped or worn seal material. A line filter is used to collect water and solid impurities. A Lubricator is used to vaporize oil into the air stream to lubricate moving parts in the system such as air tools
A regulator is used to adjust the line pressure to a lower usable pressure needed for some tool applications.

14. Control Valves 3 Port Pilot Valve 3 Port Pilot Valve
Double Pressure Operated
5 Port Valve

15. Actuators
The work done by a pneumatic actuator can be linear or rotary.
There are two basic types of linear cylinders
Single-acting
Double-acting