Week 6 1_basic_of_pneumatics

Portable power unit Impact wrench

COMPONENTS

Compressor

Compressed air supply: Delivery

Air reservoir

Supply taken from top of ring main

Intermediate reservoir

Service unit

Condensate collector tank

Reservoir within a pneumatic system

1-2 % gradient

Consuming devices

Compressor fills the reservoir – as storage tank

Pipeline is installed with a gradient of 1 to 2 %

Condensate removal are installed under the main pipeline

Function: Control the pressure or flow rate of pressure media

Categories: ◦ Directional control valves ◦ Non-return valves ◦ Flow control valves ◦ Pressure control valves ◦ Shut-off valves

3/2 Way Valve - 1 Input (supply), 1 Output (Working Line) and 1 Exhaust

2

1 3

Applications:

1)As input signal (pushbutton, limit switch, emergency button)

2)To control Single Acting Cylinder

5/2 Way Valve with 1 Input (supply), 2 Output (Working Line) and 2 Exhaust

4 2

5

1

3

Application:

- Control movement of Double Acting Cylinder

ISO 5599-3 Lettering System Port

1 P Pressure port

2, 4 A, B Working lines

3, 5 R, S Exhaust ports

1 1

2

• 2 input and 1 output

• Allow a signal to flow in one direction

• Output is acquired if one (or both) of input supply pressure

• For circuit with more than 1 input signal

1 1

2•2 input and 1 output

•Output only acquired if both input supplied with pressure

•For circuit with more than 1 input signal

100%

1 input and 1 output.

To reduce speed of piston movement (adjustable)

1

2

3

•1 input, 1 output and 1 exhaust •To increase speed of piston movement (but not adjustable)

Consists of control elements & actuators

Linear actuator

Single acting cylinder

Double acting cylinder

Rotary actuator

Air motors