pneumatic symbols

23
17.10.03 No. ١ / 2 Festo Didactic – Training and Consulting Pneumatic symbols Pneumatic symbols

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Page 1: Pneumatic Symbols

17.10.03 No. ١ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Pneumatic symbols

Page 2: Pneumatic Symbols

17.10.03 No. ٢ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Pneumatic symbols

The development of pneumatic systems is assisted by a uniform approach to the representation of the elements and the circuits. The symbols used for the individual elements must display the following characteristics:

• Function

• Actuation and return actuation methods

• Number of connections

• Number of switching positions

• General operating principle

• Simplified representation of the flow path

Page 3: Pneumatic Symbols

17.10.03 No. ٣ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

A symbol does not represent the following characteristics:

• Size or dimensions of the component

• Particular manufacturer, methods of construction or costs

• Operation of the ports

• Any physical details of the elements

• Any unions or connections other than junctions

The standard used is ISO 1219

Pneumatic symbols

Page 4: Pneumatic Symbols

17.10.03 No. ٤ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Energy supply

Compressor with fixed capacity

Air receiver and ‘T’ junction

Page 5: Pneumatic Symbols

17.10.03 No. ٥ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Air service equipment

Air filter

Air lubricator

Pressure regulator

Page 6: Pneumatic Symbols

17.10.03 No. ٦ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Air service equipment

Air service unit

filter

Regulator

Gauge

Lubricator

Simplified air

Service unit

Page 7: Pneumatic Symbols

17.10.03 No. ٧ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Directional control valves

Page 8: Pneumatic Symbols

17.10.03 No. ٨ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Directional control valves

Page 9: Pneumatic Symbols

17.10.03 No. ٩ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Directional control valves

Page 10: Pneumatic Symbols

17.10.03 No. ١٠ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Directional control valves

Methods of actuation

MechanicalGeneral manual operation

Push button

Lever operated

Detent lever operated

Page 11: Pneumatic Symbols

17.10.03 No. ١١ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Directional control valves

Methods of actuation

Mechanical

Foot pedal

Roller operated

Idle return, roller

Page 12: Pneumatic Symbols

17.10.03 No. ١٢ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Methods of actuation

Mechanical

Spring return

Spring centered

Directional control valves

Page 13: Pneumatic Symbols

17.10.03 No. ١٣ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Directional control valves

Methods of actuation

Pneumatic

Direct pneumatic actuation

Indirect pneumatic

actuation (piloted)

Page 14: Pneumatic Symbols

17.10.03 No. ١٤ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Non-return valves

Check valve

Spring loaded check valve

Shuttle valve: ‘or’ function

Page 15: Pneumatic Symbols

17.10.03 No. ١٥ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Non-return valves

Two pressure valve:‘AND’ function

Quick exhaust valve

Page 16: Pneumatic Symbols

17.10.03 No. ١٦ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Flow control valves

Flow control valve adjustable

One-way flow control valve

Page 17: Pneumatic Symbols

17.10.03 No. ١٧ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Pressure valves

Adjustable pressure regulating valve,

non-relieving type

Adjustable pressure regulating valve,

relieving type (overloads are vented)

Page 18: Pneumatic Symbols

17.10.03 No. ١٨ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Pressure valves

Sequence valve combination

Page 19: Pneumatic Symbols

17.10.03 No. ١٩ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Linear actuators

Single acting cylinder

Double acting cylinder

Double acting cylinder with

double ended piston rod

Rodless cylinder

Page 20: Pneumatic Symbols

17.10.03 No. ٢٠ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Linear actuators

Double-acting cylinder with non-adjustable cushioning in one direction

Double-acting cylinder with single adjustable cushioning

Double-acting cylinder with adjustable cushioning at both ends

Page 21: Pneumatic Symbols

17.10.03 No. ٢١ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Rotary actuators

Air motor, rotation in one direction, fixed capacity

Air motor, rotation in one direction, variable capacity

Air motor, rotation in both directions, variable capacity

Rotary actuator, limited travel, rotation in both directions

Page 22: Pneumatic Symbols

17.10.03 No. ٢٢ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Auxiliary symbols

Exhaust port

Exhaust port with threaded connection

Silencer

Line connection

Page 23: Pneumatic Symbols

17.10.03 No. ٢٣ / 23© Festo Didactic – Training and Consulting Pneumatic symbols

Auxiliary symbols

Crossing lines (not connected)

Pressure gauge

Visual indicator