Valves and their symbols

7/26/2019 Valves and their symbols

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Process Valves

Symbols / Icons forPlanners, Designers

and Piping Engineers

Valves More&

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Table of contents

Explanation and important notes Copyright / right of use 3 - 4

Symbols for process valves Valve types/bodies 6

Symbols for valve actuators Actuator types 7

Globe valves, straight through Straight seat 2/2 way 11

Globe valves, multi-port Double seat 3/2 way 13

Globe valves, angled design Straight seat 2/2 way 14

Diaphragm valves, straight through 2/2 way 15

Diaphragm valves for tank mounting 2/2 way 16

Diaphragm valves, angled design 2/2 way 17

Diaphragm valves, T design 3/2 way 18

Ball valves, straight through 2/2 way 20

Angle seat 2/2 way 12

Sample schematic Example 5

Symbols for accessories 8

Symbols for position and process controllers for process valves 10

Globe valves, straight through

Diaphragm valves, full bore 2/2 way 19

Ball valves, multi-port 3/2 way with T -passage 21

Ball valves, multi-port 3/2 way with L- passage 22

Butterfly valves 2/2 way 23

Swing check valve 2/2 way 24

Gate valves 2/2 way 25

Pinch valves 2/2 way 26

Plug valves, straight through 2/2 way 27

Plug valves, multi-port 3/2 way with T-passage 28

Plug valves, multi-port 3/2 way with L-passage 29

Measurement devices Process control 30

Examples 31 - 34

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Explanation/ important information

New logical symbols for process valves

Versions

Copyright

Right of use

Following many requests by plant designers and engineers to obtain a list ofwe have looked into the host of available norms and printed data concerning

this topic and established this document. We found out that although a large number ofsymbols exist in the various norms they are only particularly suited to the relevant area ofapplication of the norm (e.g. norm for fire safety installations DIN 19 227 part 2, norm forthermal electric stations DIN 2481 and EN ISO 10 628 flow chart for process plant). In somecases different icons are used for one and the same valve type and actuator. For this reasonthis system of symbols has been developed to particularly meet the requirements of plantengineering and process valve systems and to suit their relevant applications.

The symbols will also be made available in electronic form in future to support CAD systems .For workshops and sites they will also be available on a shrink-wrapped memo card. Theelectronic version is expected to be available in summer 2004.

GEM Gebrder Mller GmbH & Co. KG, Fritz-Mller-Strae 6-8 , 74653 Ingelfingen-

Criesbach, Germany, has the copyright and right of use. Ralph Kroupa is the author,responsible for the contents.

We herewith grant permission for personal and commercial use of the contents of thisdocument free of charge and for planning and representation of plant in any form as well asforwarding it to third parties for this purpose (user group 1) with the exception of competitors ofGEM and manufacturers/distributors of process, control and regulating valves (user group2). A permission/partial permission can be applied for at GEM Marketing Services when theexact purpose of use is indicated. Permission for publication in brochures, pamphlets,

magazines, books, other printed matters or electronic media must also be applied for atGEM Marketing Services ( user group 1 and 2). All rights reserved.

symbols forprocess valves

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Legend / File names / GB

Valve type

0000_00

Actuator

00

Control function

00_ _

Valve type Actuator

Globe valve VGS MHVGA MGVGM SEVGC PP

PDDiaphragm valve VDS HPVDB HDVDC MEVDTVDFS

Ball valve VBSVBM_TVBM_L

Butterfly valve VBFSSwing check valve VBFS_PO

Gate valve VGAS 00Pinch valve VHS 10Plug valve VPS 20

VPM_T 30VPM_L 61

62636465

- straight seat manual, hand operatedGlobe valve - angle seat manual, gear operatedGlobe valve - multi-port electro-solenoidGlobe valve - angled design pneumatic, piston controlled

pneumatic, membrane controlled- straight through hydraulic, piston controlledDiaphragm valve - tank mounting hydraulic, membrane controlledDiaphragm valve - angled design operated by electric motor Diaphragm valve - T-designDiaphragm valve - full bore

- straight throughBall valve - multi-port / T-passageBall valve - multi-port/ L-passage

- straight through

- straight through Manual operation- straight through Normally closed

- straight through Normally openPlug valve - multi-port / T-passage Double actingPlug valve - multi-port / L-passage Motorized

Motorized with position sensorMotorized with position controllerMotorized with process controllerMotorized with process controllerand field bus connection

Control function

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Sample schematic

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Symbols for process valves

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Valve


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Symbols for valve actuators

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FB


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Additional symbols

P P P

P PP

FB FB

Air

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Examples

P

P


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Position/Process controllers

Examples

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Examples

P

Air

FB P

P

P

FB

DC24

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Globe valves, straight seat 2/2 waystraight through design

FB

VGS_MH_00MGSEPPPDME

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Globe valves, angle seat 2/2 waystraight through design

VGA_MH_00SEPPPDME

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Globe valves / double seat 3/2 waymulti-port design

VGM_MH_00MGSEPPPDME

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FB

FB


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Globe valves 2/2 wayangled design

VGC_MH_00MGSEPPPDME

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FB


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Diaphragm valves 2/2 waystraight through design

VDS_MH_00MGSEPPPDME

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FB


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Diaphragm valves 2/2 wayfor tank mounting

VDB_MH_00PPPDME

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FB


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Diaphragm valves 2/2 wayangled design

VDC_MH_00PPPDME

FB

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FB


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Diaphragm valves 3/2 wayT design for feeding and outlet

VDT_MH_00PPPDME

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FBFB


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Diaphragm valves 2/2 wayfull bore, straight through design

VDFS_MH_00MGPPPDME

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FB


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Ball valves 2/2 waystraight through design

VBS_MH_00MGPPME

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FB


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Ball valves 3/2 waywith T-passage, multi-port design

VBM_T_MH_00MGPPME

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FB


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Ball valves 3/2 waywith L-passage, multi-port design

VBM_L_MH_00MGPPME

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FB


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Butterfly valves 2/2 waystraight through design

VBFS_MH_00MPPME

G

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FB


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Swing check valve 2/2 waystraight through design

VBFS_PO

VBFS_PO

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Gate valves 2/2 waystraight through design

VGAS_MH_00

PPME

MG

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FB


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Pinch valves 2/2 waystraight through design

VHS_MH_00

PP

ME

MG

PD

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FB


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Plug valves 2/2 waystraight through design

VPS_MH_00MGPPME

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FB


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Plug valves 3/2 waywith T- passage, multi-port design

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VPM_T_MH_00MGPPME

FB


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Plug valves 3/2 waywith L- passage, multi-port design

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VPM_L_MH_00MGPPME

FB


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Measurement devices

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Q

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LTank

L

L

L

L


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Valve with manual operator

Directly manually operated

Manual operator

Manually operated by gear or servo operated

Manual valve operators

Examples

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Pneumatic/hydraulicpiston controlled valve actuators

Process valve with pneumatic/hydraulicpiston controlled actuator

Normally closed

Pneumatic/hydraulic valveactuator,piston controlled

Normally open

Pneumatic/hydraulic valveactuator,piston controlled

Double acting

Examples

AirFB P

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Pneumatic/hydraulicmembrane controlled valve actuators

Process valve with pneumatic/hydraulicmembrane controlled actuator

Normally closed

Pneumatic/hydraulic valveactuator,membrane controlled

Normally open

Pneumatic/hydraulic valveactuator,membrane controlled

Double acting

Examples

P

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Motorized valve actuators

ACDCFigure

=AC voltage=DCvoltage

=volts

Process valve with motorized actuator, 230 V AC,

for linear and quarter turn valves

Motorized valve actuator with integrated continuousposition feedback (e.g. for actual value detection ofvalve position in controlsystems).

Motorized valve actuator with integrated positioncontroller.

Motorized valve actuator with integrated positionand process controller( e.g. for controlling volumetric flow).Right illustration: With additional integrated field busconnection.

AC230

AC115

DC24

DC24

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DC48


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Electro-solenoid valve actuator (solenoid actuator)

Normally closed.


Normally open.


Double acting.

Electro-solenoid valve actuators

ACDCFigure

=AC voltage= DC voltage

= volts

Examples

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Valves and their symbols

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Transcript of Valves and their symbols