The Structure of Pneumatic Systems
Command execution
Working elements Cylinders Motors Optical indicators
Signal output
Control elements Directional control valves
Signal processing
Processing elements Directional control valves Shuttle valves Dual-pressure valves Pressure sequence valves Sequencers
Signal input
Energy supply
© Festo Didactic GmbH & Co.
Input elements Push-button directional control valves Roller lever valves Proximity switches Air barriers
Energy supply elements Compressor Pneumatic reservoir Pressure regulating valve Service unit
TP 101, Transparency 01
System Circuit Diagram
1A
1S3
Working element 1V2 4
Control element
1V1 1
Processing element 1S1
14 2
12 5
1(3)
1S2
2
2
1
3
1S3
2
2
Input elements 1
3
0Z
Energy supply elements
© Festo Didactic GmbH & Co.
1
3
1
0S
3
2
1
3
TP 101, Transparency 02
è
Direct Actuation of Cylinders
© Festo Didactic GmbH & Co.
è
è
è
è
è
è
Single-acting cylinder
è
è
è
Double-acting cylinder
TP 101, Transparency 03
Symbols for the Power Supply Section Energy Supply – Compressor with constant displacement volume – Pneumatic reservoir – Pressure source Maintenance – Filter
– Water separator with manual actuation
– Water separator with automatic condensate drain
– Lubricator 2
– Pressure regulating valve with relief port, adjustable 1 3
Combined Symbols – Air service unit
Consisting of Compressed air filter, Pressure regulating valve, Pressure gauge and compressed air lubricator Simplified representation of a service unit Simplified representation of a service unit without compressed air lubricator
© Festo Didactic GmbH & Co.
TP 101, Transparency 04
Directional Control Valves: Ports and Switching Positions Number of ports Number of switching positions 2
2/2-way valve, normally open position 1 2
3/2-way valve, normally closed position 1
3 2
3/2-way valve, normally open position 4/2-way valve flow from 1 à 2 and from 4 à 3 5/2-way valve flow from 1 à 2 and from 4 à 5
1
3
4
2
1
3
4
2
5
1
3
2
4
5/3-way valve, mid-position closed 5
© Festo Didactic GmbH & Co.
1
3
TP 101, Transparency 05
Port designations 4
2
2
12 1
3
91
2
© Festo Didactic GmbH & Co.
1
4
12
10 1
5
3
3
2
14
12 5
1
3
TP 101, Transparency 06
Types of Actuation Manual actuation
– General – Pushbutton operated – Lever operated – Via lever with detent – Foot pedal operated
Mechanical actuation
– Stem actuated – Roller actuated – Roller actuated only in one direction – Spring actuated – Spring centered
Pneumatic actuation
– Direct pneumatic actuation – Indirect pneumatic actuation, piloted
Solenoid actuation
– Single-solenoid operation – Double-solenoid operation
Combined actuation
© Festo Didactic GmbH & Co.
– Double solenoid valve, piloted, with manual override
TP 101, Transparency 07
Non-return, Flow Control and Pressure Control Valves Non-return valves
– Non-return valve (check valve) – Non-return valve, spring-loaded – Shuttle valve (OR function) – Dual pressure valve (AND function)
– Quick exhaust valve – One-way flow control valve Flow control valve Pressure control valves
– Flow control valve (throttle valve), adjustable
1
– Adjustable pressure regulating valve without relief port
2 1
– Adjustable pressure regulating valve with relief port
3
2
– Pressure sequence valve with external supply line
1 12
2 1
– Pressure-relief valve 2
2
– Pressure sequence valve-combination 1
3
12 © Festo Didactic GmbH & Co.
TP 101, Transparency 08
Symbols for the Principle Working Elements Linear Actuators – Single-acting cylinder – Double-acting cylinder – Double-acting cylinder with through piston rod – Double-acting cylinder with single, non-adjustable cushioning – Double-acting cylinder with single, adjustable cushioning – Double-acting cylinder with adjustable cushioning at both ends – Rodless cylinder with magnetic coupling
Rotary Drives – Air motor, constant displacement, rotation in one direction – Air motor, variable displacement, rotation in one direction – Air motor, variable displacement, rotation in both directions – Pneumatic rotary motor © Festo Didactic GmbH & Co.
TP 101, Transparency 09
Component designation 2
Marking line
© Festo Didactic GmbH & Co.
1
3
TP 101, Transparency 10
Direct Actuation
Indirect Actuation 1A
1A
1S
1V
2
2
12
1
3
1S
2
1
© Festo Didactic GmbH & Co.
1
3
3
TP 101, Transparency 11
Circuit Diagram: Dual-Pressure Valve (AND function) 1A
1V2
4
2
14
1V1
1S1
1S2
2
1
0S
5
3
1
3
2
1
3
2
0Z 1
© Festo Didactic GmbH & Co.
3
TP 101, Transparency 12
Circuit Diagram: Shuttle Valve (OR Function) 1A
1V2
4
2
14
1V1
1S1
1S2
2
1
0S
5
3
1
3
2
1
3
2
0Z 1
© Festo Didactic GmbH & Co.
3
TP 101, Transparency 13
Circuit Diagram: 5/2-Way Double Pilot Valve (Speed Control) 1A
1V2
1V3
1V1
4
5
1S1
© Festo Didactic GmbH & Co.
1
3
1S2
2
1
2
3
2
1
3
TP 101, Transparency 14
Circuit Diagram: Quick Exhaust Valve 1A
1V 1
1S
© Festo Didactic GmbH & Co.
1V
2 3
1
1S
2
1
1A
3
4
5
2 3
2
1
3
TP 101, Transparency 15
Circuit Diagram: Pressure Sequence Valve 1A 1Z
1V2
4
2
14
12 5
1S
© Festo Didactic GmbH & Co.
3
1V1
2
2
1
0Z
1
3 12
1
3
TP 101, Transparency 16
Circuit Diagram: Time Delay Valve 1A
1S2
1V4
1V5
1V3
4
2
14
12 5
1V1 1
1S1 0Z
© Festo Didactic GmbH & Co.
3
1
1V2
3
1(3)
1S2
2
1
2
1S3
2
12
1S3
2
1
3
2
1
1
3
3
TP 101, Transparency 17
Circuit Diagram: Coordinated Motion 1
2
3
4
5=1
1
1S2
1A 0
1S3
2S1
1A
2S2
2A
1
2A
1V2
0
4 14
12 5
1V1
1
4
2
14
3
12 5
1
3
2 1
1S1
2V
2
1(3)
2S1
2
1
3
2S2
2
1
3
1S3
2
1
3
1S2
2
1
3
2
1
3
0Z
© Festo Didactic GmbH & Co.
TP 101, Transparency 18
Circuit Diagram: Overlapping Signals 1
2
3
4
5=1
1
1S2
1A 0
1S3
2S1
1A
2S2
2A
1
2A
1V2
0
è
4 14
12 5
1V1
1
è
è
4
2
14
3
12 5
1
è
3
2 1
1S1
2V
2
1(3)
1S2
2
1
3
2S1
2
1
3
1S3
2
1
3
2S2
2
1
3
2
1
3
0Z
© Festo Didactic GmbH & Co.
TP 101, Transparency 19
Function Diagram: Overlapping Signals
1
2
3
4
5=1
1
1A 0 1
2A 0
1S1 1S2 1S3 2S1 2S2
© Festo Didactic GmbH & Co.
1 0 1 0 1 0 1 0 1 0
TP 101, Transparency 20
Circuit Diagram: Roller Lever Valve with Idle Return 1
2
3
4
5=1
1
1S2
1A 0
1S3
2S1
1A
2S2
2A
1
2A
1V2
0
4 14
12 5
1V1
1
4
2
14
3
12 5
1
3
2 1
1S1
2V
2
1(3)
1S2
2
1
3
2S1
2
1
3
1S3
2
1
3
2S2
2
1
3
2
1
3
0Z
© Festo Didactic GmbH & Co.
TP 101, Transparency 21
Circuit Diagram: Reversing Valve 1A
1S2
1V
4
2A
1S3
2V
2
14
12 5
1
4
2S1
3
1S3
2
3
0V
4
1
1S1
3
3
1
3
P1 P2
12 5
2
5
2
14
1S2
12
2
1
2S2
2
14
1
1
3
2S2
2
1
3
2
1 © Festo Didactic GmbH & Co.
2S1
3 TP 101, Transparency 22
Types of Compressor Reciprocating piston compressor, single stage
Sliding vane compressor (Rotary compressor)
© Festo Didactic GmbH & Co.
Screw compressor
Radial-flow compressor
Axial compressor
TP 101, Transparency 23
Air Drying: Refridgeration Drying Air outlet
Air inlet Refridgerating unit
Air to air-heat exchanger
Moisture separator
Refrigerant
Moisture separator Refrigeration machine © Festo Didactic GmbH & Co.
TP 101, Transparency 24
Air Drying
Absorption Drying
Adsorption Drying Moist air
Dry air outlet
Prefilter (oil filter) Shut-off valve (closed)
Shut-off valve (open) Desiccant
Adsorber 1
Condensate
Adsorber 2
Hot air Shut-off valve (open)
Moist air inlet
Heater Shut-off valve (closed) Secondary filter
Condensate drain
Blower Dry air
© Festo Didactic GmbH & Co.
TP 101, Transparency 25
Compressed Air Filter
è
è
Sintered filter Condensate Filter bowl Drain screw
© Festo Didactic GmbH & Co.
TP 101, Transparency 26
Pressure Regulating Valve with Relief Port
2
P1
P2
3
P1
P2
1 © Festo Didactic GmbH & Co.
TP 101, Transparency 27
Compressed Air Lubricator
Regulating screw for oil supply
Drip chamber Non-return valve
è
Vent screw for oil reservoir Exhaust valve
Venturi nozzle
è
Feed tube
Metal bowl guard
Oil
© Festo Didactic GmbH & Co.
TP 101, Transparency 28
3/2-Way Valve: Ball Bearing Seat, Normally Closed Position 2
1
3
© Festo Didactic GmbH & Co.
2
3
1
3
3
2
2
1
1
TP 101, Transparency 29
3/2-Way Valve: with Disk Seat, Normally Closed Position 2
1
2
1
© Festo Didactic GmbH & Co.
2
3
1
3
2 3
1
3
TP 101, Transparency 30
3/2-Way Valve: Disk Seat, Normally Open Position 2
1
2
1
© Festo Didactic GmbH & Co.
2
1
3
3
2 3
1
3
TP 101, Transparency 31
3/2-Way Single Pilot Valve, Normally Closed Position 12
2
1
3
2
1
12
12
3
3
3
2
2 1
© Festo Didactic GmbH & Co.
12
1
TP 101, Transparency 32
Pilot Control
to diaphragm
from port 1 © Festo Didactic GmbH & Co.
TP 101, Transparency 33
3/2-Way Roller Lever Valve, Pilot Actuated 2
1
1 2
© Festo Didactic GmbH & Co.
3
2
3
1
3
3
1
2
TP 101, Transparency 34
4/2-Way Valve, Disk Seat
4 1
© Festo Didactic GmbH & Co.
4
2
1
3
2 3
4 1
4
2
1
3
2 3
TP 101, Transparency 35
4/3-Way Valve, Mid-Position Closed, (flat slide valve)
3
2
4
1
© Festo Didactic GmbH & Co.
3
2
2
1
3
3
4
1
4
2
4
1
TP 101, Transparency 36
5/2-Way Double Pilot Valve, Pneumatically Actuated, Both Sides 4
14
5
14
5
4
1
2
3
4
5
© Festo Didactic GmbH & Co.
5
4
1
2
3
1
12
3
12 14
14
2
2
1
12
3
12
TP 101, Transparency 37
5/2-Way Double Pilot Valve, Suspended Disk Seat 4
4
2
14
12 5
14
5
4
1
2
3
12
4
© Festo Didactic GmbH & Co.
5
1
3
1
3
2
14
12 5
14
2
1
3
12 TP 101, Transparency 38
5/3-Way Valve, Pneumatically Actuated, Both Sides 4
2
14
14
5
4
1
2
3
12
12 5
1 3
4
2
14
14
5
4
1
2
3
12
12 5
1 3
4
2
14
12 5
14 © Festo Didactic GmbH & Co.
5
4
1
2
3
1 3
12 TP 101, Transparency 39
Dual-Pressure Valve (AND Function) 2 1
2
1
© Festo Didactic GmbH & Co.
1(3)
2
1(3)
1
1(3)
TP 101, Transparency 40
Shuttle Valve (OR Function) 2 1
2
1
© Festo Didactic GmbH & Co.
1(3)
2
1(3)
1
1(3)
TP 101, Transparency 41
Non-return Valve
Quick Exhaust Valve 2 3
1
3
è
è
2
è
1 © Festo Didactic GmbH & Co.
TP 101, Transparency 42
Flow Control Valve
çè
One-Way Flow Control Valve
çè
è
© Festo Didactic GmbH & Co.
è
TP 101, Transparency 43
Supply and Exhaust Air Flow Control 1A
1A
1V1
1S
1V2
4
5
© Festo Didactic GmbH & Co.
2
1
3
1V1
1V2
1S
4
5
2
1
3
TP 101, Transparency 44
Pressure Sequence Valve 2
12
3 © Festo Didactic GmbH & Co.
2 1
1
3
12 TP 101, Transparency 45
Time Delay Valve, Normally Closed Position 2
12
12
12
1
© Festo Didactic GmbH & Co.
3
3
2
2
1
1
3
TP 101, Transparency 46
Single-Acting Cylinder
© Festo Didactic GmbH & Co.
TP 101, Transparency 47
Double-Acting Cylinder
© Festo Didactic GmbH & Co.
TP 101, Transparency 48
Cylinder Construction and Types of Seal
Adjustable end position cushioning
Cylinder barrel
Piston seal
Adjustable end position cushioning
Shaped ring
Square ring
Grooved rings on both sides
Cup seal
Buttoned-in groove ring seal
Double cup seal
Supported groove rings with slide ring
Guide bush
Seal and scraper ring Piston End cap
O-Ring
Seal
Bearing cap
Piston rod Cushioning piston
L-Rings
© Festo Didactic GmbH & Co.
TP 101, Transparency 49
Types of Mounting
© Festo Didactic GmbH & Co.
TP 101, Transparency 50
Rodless Cylinder
© Festo Didactic GmbH & Co.
TP 101, Transparency 51
Swivel Drive
© Festo Didactic GmbH & Co.
Rotary Cylinder
TP 101, Transparency 52