ISO 14617-2:2025

SLOVENSKI STANDARD
01-oktober-2025
Nadomešča:
SIST ISO 3511-1:1995
SIST ISO 3511-2:1995
SIST ISO 3511-3:1995
SIST ISO 3511-4:1995
Grafični simboli za diagrame - 2. del: Grafični simboli
Graphical symbols for diagrams - Part 2: Graphical symbols
Symboles graphiques pour schémas — Partie 2: Symboles graphiques
Ta slovenski standard je istoveten z: ISO 14617-2:2025
ICS:
01.080.30 Grafični simboli za uporabo v Graphical symbols for use on
risbah, diagramih, načrtih, mechanical engineering and
zemljevidih v strojništvu in construction drawings,
gradbeništvu ter v ustrezni diagrams, plans, maps and in
tehnični proizvodni relevant technical product
dokumentaciji documentation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

International
Standard
ISO 14617-2
Second edition
Graphical symbols for diagrams —
2025-04
Part 2:
Graphical symbols
Symboles graphiques pour schémas —
Partie 2: Symboles graphiques
Reference number
© ISO 2025
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Published in Switzerland
ii
Contents
Foreword . ix
Introduction . xi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General application symbols . 2
4.1 Components, devices, functional units, equipment, plants and functions . 2
4.1.1 Basic symbols . 2
4.1.2 Supplementary symbols . 2
4.1.3 Symbol examples . 4
4.2 Variability . 5
4.2.1 Basic symbols . 5
4.2.2 Supplementary symbols . 5
4.2.3 Symbol examples . 5
4.3 Characteristics for force, motion, mass flow, magnetic flow and signals . 6
4.3.1 Basic symbols . 6
4.3.2 Supplementary symbols . 7
4.3.3 Symbol examples . 7
4.4 Directions . 7
4.4.1 Basic symbols . 7
4.4.2 Supplementary symbols . 9
4.4.3 Symbol examples . 10
4.5 Materials . 12
4.5.1 Basic symbols . 12
4.5.2 Supplementary symbols . 12
4.5.3 Symbol examples . 12
4.6 Simplifications . 13
4.6.1 Basic symbols . 13
4.6.2 Supplementary symbols . 13
4.6.3 Symbol examples . 13
4.7 General electrotechnical symbols . 14
4.7.1 Basic symbols . 14
4.7.2 Supplementary symbols . 15
4.7.3 Symbol examples . 15
5 Connections and related devices (fluids). 15
5.1 Connections, general . 15
5.1.1 Basic symbols . 15
5.1.2 Supplementary symbols . 16
5.1.3 Symbol examples . 18
5.2 Connection functional joints . 19
5.2.1 Basic symbols . 19
5.2.2 Supplementary symbols . 19
5.2.3 Symbol examples . 19
5.3 Connection devices . 20
5.3.1 Basic symbols . 20
5.3.2 Supplementary symbols . 22
5.3.3 Symbol examples . 22
5.4 Connection, simplifications . 22
iii
5.4.1 Basic symbols .22
5.4.2 Supplementary symbols .23
5.4.3 Symbol examples .23
5.5 Couplings, quick release couplings .23
5.5.1 Basic symbols .23
5.5.2 Supplementary symbols .23
5.5.3 Symbol examples .23
5.6 Pipeline and duct elements .24
5.6.1 Basic symbols .24
5.6.2 Supplementary symbols .27
5.6.3 Symbol examples .27
5.7 Access chambers, inspection wells .28
5.7.1 Basic symbols .28
5.7.2 Supplementary symbols .29
5.7.3 Symbol examples .29
6 Fluid flow control .29
6.1 General purpose valves .29
6.1.1 Basic symbols .29
6.1.2 Supplementary symbols .30
6.1.3 Symbol examples .32
6.2 Dampers .37
6.2.1 Basic symbols .37
6.2.2 Supplementary symbols .37
6.2.3 Symbol examples .37
6.3 Valves with special functions .38
6.3.1 Basic symbols .38
6.3.2 Supplementary symbols .38
6.3.3 Symbol examples .38
6.4 Taps, showers, etc. .39
6.4.1 Basic symbols .39
6.4.2 Supplementary symbols .40
6.4.3 Symbol examples .40
6.5 Hydrants .40
6.5.1 Basic symbols .40
6.5.2 Supplementary symbols .40
6.5.3 Symbol examples .40
6.6 Safety devices other than valves .41
6.6.1 Basic symbols .41
6.6.2 Supplementary symbols .41
6.6.3 Symbol examples .41
7 Actuators .42
7.1 Basic elements .42
7.1.1 Basic symbols .42
7.1.2 Supplementary symbols .43
7.1.3 Symbol examples .43
7.2 Manually operated actuators .44
7.2.1 Basic symbols .44
7.2.2 Supplementary symbols .46
7.2.3 Symbol examples .46
7.3 Automatic actuators .46
7.3.1 Basic symbols .46
7.3.2 Supplementary symbols .48
7.3.3 Symbol examples .48
iv
7.4 Complex actuators . 48
7.4.1 Basic symbols . 48
7.4.2 Supplementary symbols . 49
7.4.3 Symbol examples . 49
8 Fluid transport. 50
8.1 Pumps, compressors and fans . 50
8.1.1 Basic symbols . 50
8.1.2 Supplementary symbols . 50
8.1.3 Symbol examples . 53
9 Fluid energy transfer . 54
9.1 Heat exchangers, condensers . 54
9.1.1 Basic symbols . 54
9.1.2 Supplementary symbols . 55
9.1.3 Symbol examples . 55
9.2 Heat exchanger of specific design . 56
9.2.1 Basic symbols . 56
9.2.2 Supplementary symbols . 57
9.2.3 Symbol examples . 57
9.3 Cooling towers . 57
9.3.1 Basic symbols . 57
9.3.2 Supplementary symbols . 58
9.3.3 Symbol examples . 58
10 Fluid separation and mixing . 59
10.1 Separation . 59
10.1.1 Basic symbols . 59
10.1.2 Supplementary symbols . 59
10.1.3 Symbol examples . 60
10.2 Mixing . 64
10.2.1 Basic symbols . 64
10.2.2 Supplementary symbols . 65
10.2.3 Symbol examples . 66
11 Fluid processing . 67
11.1 Processing of liquid fluids by absorption, catalysis, conversion, thermics, etc. . 67
11.1.1 Basic symbols . 67
11.1.2 Supplementary symbols . 67
11.1.3 Symbol examples . 69
12 Fluid power converters . 69
12.1 Devices for conversion of mechanical energy to fluid energy and vice versa . 69
12.1.1 Basic symbols . 69
12.1.2 Supplementary symbols . 70
12.1.3 Symbol examples . 70
12.2 Devices for conversion of fluid mechanical energy by an intermediate fluid step . 72
12.2.1 Basic symbols . 72
12.2.2 Supplementary symbols . 72
12.2.3 Symbol examples . 72
12.3 Linear fluid motors, fluid cylinders . 73
12.3.1 Basic symbols . 73
12.3.2 Supplementary symbols . 73
12.3.3 Symbol examples . 73
13 Storage . 74
13.1 Stationary storage devices . 74
v
13.1.1 Basic symbols .74
13.1.2 Supplementary symbols .75
13.1.3 Symbol examples .76
13.2 Mobile storage devices .78
13.2.1 Basic symbols .78
13.2.2 Supplementary symbols .78
13.2.3 Symbol examples .78
13.3 Energy storage and expansion devices .78
13.3.1 Basic symbols .78
13.3.2 Supplementary symbols .79
13.3.3 Symbol examples .79
14 Material transport and flow control .79
14.1 Conveyors, feeders and associated devices .79
14.1.1 Basic symbols .79
14.1.2 Supplementary symbols .81
14.1.3 Symbol examples .82
14.2 Tracks and associated objects .84
14.2.1 Basic symbols .84
14.2.2 Supplementary symbols .84
14.2.3 Symbol examples .85
14.3 Handling objects, cranes, robots.85
14.3.1 Basic symbols .85
14.3.2 Supplementary symbols .85
14.3.3 Symbol examples .86
14.4 Mobile transport objects .86
14.4.1 Basic symbols .86
14.4.2 Supplementary symbols .88
14.4.3 Symbol examples .88
15 Material separation and mixing .88
15.1 Material separation and mixing .88
15.1.1 Basic symbols .88
15.1.2 Supplementary symbols .88
15.1.3 Symbol examples .89
15.2 Mixing .89
15.2.1 Basic symbols .89
15.2.2 Supplementary symbols .90
15.2.3 Symbol examples .90
16 Material processing .90
16.1 Solid material .90
16.1.1 Basic symbols .90
16.1.2 Supplementary symbols .93
16.1.3 Symbol examples .93
16.2 Bulk material, size reduction .93
16.2.1 Basic symbols .93
16.2.2 Supplementary symbols .93
16.2.3 Symbol examples .95
16.3 Forming, shaping, etc. .95
16.3.1 Basic symbols .95
16.3.2 Supplementary symbols .96
16.3.3 Symbol examples .96
16.4 Thermal .97
16.4.1 Basic symbols .97
16.4.2 Supplementary symbols .97
vi
16.4.3 Symbol examples . 97
17 Energy conversion, boilers, turbines, motors, etc. . 98
17.1 Boilers, steam generators, furnaces and hot air generators . 98
17.1.1 Basic symbols . 98
17.1.2 Supplementary symbols . 99
17.1.3 Symbol examples . 99
17.2 Steam turbines . 100
17.2.1 Basic symbols . 100
17.2.2 Supplementary symbols . 100
17.2.3 Symbol examples . 101
17.3 Combustion engines, reciprocating and rotary pistons, gas turbines . 101
17.3.1 Basic symbols . 101
17.3.2 Supplementary symbols . 102
17.3.3 Symbol examples . 102
17.4 Heat pumps, refrigerators and freezers, water heaters, air conditioners . 103
17.4.1 Basic symbols . 103
17.4.2 Supplementary symbols . 103
17.4.3 Symbol examples . 103
17.5 Electrical motors and generators . 103
17.5.1 Basic symbols . 103
17.5.2 Supplementary symbols . 104
17.5.3 Symbol examples . 104
17.6 Thermal energy consumers . 104
17.6.1 Basic symbols . 104
17.6.2 Supplementary symbols . 104
17.6.3 Symbol examples . 105
18 Mechanical transmission . 105
18.1 Shafts, bearings . 105
18.1.1 Basic symbols . 105
18.1.2 Supplementary symbols . 105
18.1.3 Symbol examples . 105
18.2 Couplings, fixed, detachable and variable . 105
18.2.1 Basic symbols . 105
18.2.2 Supplementary symbols . 106
18.2.3 Symbol examples . 106
18.3 Gears, fixed ratio and variable ratio . 106
18.3.1 Basic symbols . 106
18.3.2 Supplementary symbols . 107
18.3.3 Symbol examples . 107
18.4 Brakes . 107
18.4.1 Basic symbols . 107
18.4.2 Supplementary symbols . 108
18.4.3 Symbol examples . 108
18.5 Belt and chain devices . 108
18.5.1 Basic symbols . 108
18.5.2 Supplementary symbols . 109
18.5.3 Symbol examples . 109
18.6 Miscellaneous mechanical devices . 109
18.6.1 Basic symbols . 109
18.6.2 Supplementary symbols . 110
18.6.3 Symbol examples . 110
19 Measurement and control devices . 110
19.1 Sensors, signal converters and measuring transducers . 110
vii
19.1.1 Basic symbols . 110
19.1.2 Supplementary symbols . 111
19.1.3 Symbol examples . 114
19.2 Fittings for sensors and measuring transducers . 115
19.2.1 Basic symbols . 115
19.2.2 Supplementary symbols . 115
19.2.3 Symbol examples . 115
19.3 Measuring instruments, meters . 116
19.3.1 Basic symbols . 116
19.3.2 Supplementary symbols . 116
19.3.3 Symbol examples . 116
19.4 Counting devices and clocks . 117
19.4.1 Basic symbols . 117
19.4.2 Supplementary symbols . 118
19.4.3 Symbol examples . 118
19.5 Devices for analogue signal processing . 118
19.5.1 Basic symbols . 118
19.5.2 Supplementary symbols . 119
19.5.3 Symbol examples . 119
19.6 Displays and other signalling processing . 120
19.6.1 Basic symbols . 120
19.6.2 Supplementary symbols .
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