EN ISO 22153:2021

Electric actuators for industrial valves - General requirements (ISO 22153:2020)

This document provides basic requirements for electric valve actuators, used for on-off and control valves. It includes guidelines for classification, design, enclosure and corrosion protection, and methods for conformity assessment.
Combinations of electric actuators and gearboxes when supplied by the actuator manufacturer are within the scope of this document.
This document does not cover solenoid actuators, electro-hydraulic actuators and electric actuators which are integral to the valves.
Other requirements or conditions of use different from those indicated in this document are agreed between the purchaser and the manufacturer/supplier, prior to order.

Elektrische Antriebe für Industriearmaturen - Allgemeine Anforderungen (ISO 22153:2020)

Dieses Dokument enthält Grundanforderungen an elektrische Stellantriebe für Armaturen für An Aus- und Regelventile. Es enthält Leitlinien für Klassifizierung, Konstruktion, Gehäuse- und Korrosionsschutz sowie Verfahren zur Konformitätsbewertung.
Vom Hersteller des Antriebs gelieferte Kombinationen von elektrischen Stellantrieben und Armaturengetrieben fallen in den Anwendungsbereich dieses Dokuments.
Dieses Dokument gilt nicht für Magnet-Stellantriebe, elektrisch-hydraulische sowie elektrische Stellantriebe, die fester Bestandteil der Armaturen sind.
Andere Anforderungen oder Anwendungsbedingungen als die in diesem Dokument angegebenen werden vor Auftragserteilung zwischen Käufer und Hersteller/Lieferant vereinbart.

Actionneurs électriques pour robinetterie industrielle - Exigences générales (ISO 22153:2020)

Le présent document fournit les exigences de base pour les actionneurs électriques pour appareils de robinetterie, utilisés pour les robinets tout ou rien et les robinets de régulation. Il comprend des lignes directrices pour la classification, la conception, l'enveloppe et la protection contre la corrosion ainsi que des méthodes d'évaluation de la conformité.
Les combinaisons d'actionneurs électriques et de réducteurs fournies par le fabricant de l'actionneur relèvent du domaine d'application du présent document.
Le présent document ne couvre ni les actionneurs électromagnétiques, ni les actionneurs hydroélectriques et les actionneurs électriques qui font partie intégrante des appareils de robinetterie.
Les exigences ou conditions d'utilisation autres que celles mentionnées dans le présent document font l’objet d’un accord entre l'acheteur et le fabricant/fournisseur avant la commande.

Električni pogoni za industrijske ventile - Splošne zahteve (ISO 22153:2020)

General Information

• Status: Published
• Publication Date: 20-Apr-2021
• Withdrawal Date: 30-Oct-2021
• ICS: 23.060.01 - Valves in general
• Technical Committee: CEN/TC 69 - Industrial valves
• Drafting Committee: CEN/TC 69/WG 1 - Basic standards
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 21-Apr-2021
• Due Date: 23-Dec-2022
• Completion Date: 21-Apr-2021
• Ref Project: SIST EN ISO 22153:2021 - Electric actuators for industrial valves - General requirements (ISO 22153:2020)

Relations

• Replaces: EN 15714-2:2009 - Industrial valves - Actuators - Part 2: Electric actuators for industrial valves - Basic requirements
• Effective Date: 28-Apr-2021

Overview

EN ISO 22153:2021 (adoption of ISO 22153:2020) is the European standard that sets general requirements for electric actuators for industrial valves. Published by CEN, it covers basic design, classification, enclosure and corrosion protection, testing and conformity assessment for electric actuators used on on‑off and control valves. Combinations of electric actuators and gearboxes supplied by the actuator manufacturer are also within its scope. The standard explicitly excludes solenoid actuators, electro‑hydraulic actuators and electric actuators that are integral to the valve.

Key topics and technical requirements

• Classification & designation: Types, actuator duty classes and naming conventions to support correct specification and procurement.
• Action on loss of power: Requirements for stay‑put and fail‑safe behaviour.
• Design and endurance: Mechanical endurance expectations for part‑turn, multi‑turn and linear actuators.
• Environmental requirements: Ambient temperature, humidity, altitude, enclosure protection (IP rating), external corrosion protection and resistance to vibration, shock and seismic conditions.
• Attachment & mounting: Interfaces and mechanical attachments for part‑turn, multi‑turn and linear actuators.
• Performance and electrical: Power‑supply tolerances, duty performance, operating time/speed, cable entries and electrical connection requirements.
• Safety & control features: Self‑locking/braking, manual operation, travel limitation, torque/thrust limitation, end‑stop adjustment and noise limits.
• Optional equipment: Anti‑condensation heaters, position transmitters, running transmitters, local control stations, positioners/controllers, speed control, fieldbus interfaces, torque transmitters and data logging.
• Testing, marking & documentation: Type and production tests, production control, mandatory marking and required documentation for conformity assessment.

Applications and who uses it

• Actuator manufacturers and gearbox suppliers - to design, test and certify electric actuators that meet European/ISO requirements.
• Valve and OEM manufacturers - to ensure actuator‑valve compatibility and reliable integration.
• Plant engineers and specifiers in oil & gas, water/wastewater, power generation, chemical and process industries - to select actuators with the right duty class, environmental protection and fail‑safe behaviour.
• Procurement and compliance teams - to define contractual requirements, perform conformity assessment and verify marking and documentation.
• Testing and certification bodies - for type tests, production checks and verification against the standard.

Related standards

• ISO 22153:2020 (original ISO document adopted as EN ISO 22153:2021)
• Supersedes EN 15714‑2:2009

EN ISO 22153:2021 is essential when specifying, designing or buying electric actuators for industrial valves to ensure safety, durability and interoperability under specified environmental and operational conditions.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 15714-2:2011
Električni pogoni za industrijske ventile - Splošne zahteve (ISO 22153:2020)
Electric actuators for industrial valves - General requirements (ISO 22153:2020)
Elektrische Antriebe für Industriearmaturen - Allgemeine Anforderungen (ISO
22153:2020)
Actionneurs électriques pour robinetterie industrielle - Exigences générales (ISO
22153:2020)
Ta slovenski standard je istoveten z: EN ISO 22153:2021
ICS:
23.060.01 Ventili na splošno Valves in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 22153
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 23.060.01 Supersedes EN 15714-2:2009
English Version
Electric actuators for industrial valves - General
requirements (ISO 22153:2020)
Actionneurs électriques pour robinetterie industrielle - Elektrische Antriebe für Industriearmaturen -
Exigences générales (ISO 22153:2020) Allgemeine Anforderungen (ISO 22153:2020)
This European Standard was approved by CEN on 12 April 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22153:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 22153:2020 has been prepared by Technical Committee ISO/TC 153 "Valves” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 22153:2021 by
Technical Committee CEN/TC 69 “Industrial valves” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2021, and conflicting national standards shall
be withdrawn at the latest by October 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15714-2:2009.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 22153:2020 has been approved by CEN as EN ISO 22153:2021 without any modification.

INTERNATIONAL ISO
STANDARD 22153
First edition
2020-01
Electric actuators for industrial
valves — General requirements
Actionneurs électriques pour robinetterie industrielle — Exigences
générales
Reference number
ISO 22153:2020(E)
©
ISO 2020
ISO 22153:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 22153:2020(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification — Designation . 3
4.1 General . 3
4.2 Type . 4
4.3 Actuator duty classification . 4
4.4 Action on loss of external electric power . 4
4.4.1 Stay put action . 4
4.4.2 Fail-safe action . 4
5 Design requirements . 4
5.1 Endurance . 4
5.1.1 General. 4
5.1.2 Part-turn actuators . 5
5.1.3 Multi-turn actuators . 5
5.1.4 Linear actuators. 5
5.2 Environmental conditions . 6
5.2.1 General. 6
5.2.2 Ambient temperature and humidity . 6
5.2.3 Altitude . 6
5.2.4 Enclosure protection . 6
5.2.5 External corrosion protection . 6
5.2.6 Vibrations, shock and seismic conditions . 7
5.3 Actuator attachment . 7
5.3.1 Part-turn actuators . 7
5.3.2 Multi-turn actuators . 7
5.3.3 Linear actuators. 7
5.4 Primary closing direction . 8
5.5 Fail-safe direction . 8
5.6 Electrical connections — Cable entries . 8
5.7 Self-locking/braking . 8
5.8 Performance . 9
5.8.1 Power supply tolerances . 9
5.8.2 Actuator duty performances. 9
5.8.3 Operating time and speed .10
5.9 Basic design requirements .11
5.9.1 Motors .11
5.9.2 Gearing lubricant .11
5.9.3 Manual operation .11
5.9.4 Travel limitation .11
5.9.5 Torque/thrust limitation .12
5.9.6 Structural integrity .12
5.9.7 End stop adjustment for part-turn and linear actuators .12
5.9.8 Noise .12
6 Optional equipment .12
6.1 General .12
6.2 Anti-condensation heater .12
6.3 Position transmitter .13
6.4 Actuator running transmitter .13
6.5 Additional position and/or torque signalling .13
6.6 Local control station .13
ISO 22153:2020(E)
6.7 Local position indication .13
6.8 Actuator electrical controls .13
6.8.1 General.13
6.8.2 Positioner .13
6.8.3 Controller .13
6.8.4 Speed control .13
6.8.5 Field bus system interface .14
6.8.6 Torque transmitter (analogue or digital) .14
6.8.7 Actuator performance data logger .14
7 Type and production test .14
7.1 General .14
7.2 Type tests .14
7.3 Control of production process .15
8 Marking .16
8.1 General .16
8.2 Mandatory marking .16
8.3 Optional marking .16
9 Documentation .17
9.1 General .17
9.2 Mandatory documentation .17
9.3 Optional documentation .17
10 Packaging .17
Annex A (normative) Endurance test procedure .18
Annex B (informative) Actuator selection guidelines .19
Annex C (informative) Load profiles .21
Bibliography .24
iv © ISO 2020 – All rights reserved

ISO 22153:2020(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 153, Valves.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
INTERNATIONAL STANDARD ISO 22153:2020(E)
Electric actuators for industrial valves — General
requirements
1 Scope
This document provides basic requirements for electric valve actuators, used for on-off and control
valves. It includes guidelines for classification, design, enclosure and corrosion protection, and methods
for conformity assessment.
Combinations of electric actuators and gearboxes when supplied by the actuator manufacturer are
within the scope of this document.
This document does not cover solenoid actuators, electro-hydraulic actuators and electric actuators
which are integral to the valves.
Other requirements or conditions of use different from those indicated in this document are agreed
between the purchaser and the manufacturer/supplier, prior to order.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5210, Industrial valves — Multi-turn valve actuator attachments
ISO 5211, Industrial valves — Part-turn actuator attachments
IEC 60529, Degrees of protection provided by enclosures (IP Code)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
electric actuator
electrically powered device attached to the valve by bolting for the purpose of applying torque (3.5)
and/or thrust to open and close and/or control a valve
3.2
part-turn actuator
actuator which transmits torque (3.5) to the valve for less than one revolution, and does not need to be
capable of withstanding operational thrust
Note 1 to entry: In this document, a combination of a multi-turn actuator (3.3) plus a part-turn gearbox (3.15) is
considered as a part-turn actuator
ISO 22153:2020(E)
3.3
multi-turn actuator
actuator which transmits torque (3.5) to the valve/gearbox (3.15) for at least one revolution and can be
capable of withstanding thrust
Note 1 to entry: In this document, a combination of a multi-turn actuator plus a multi-turn gearbox is considered
as a multi-turn actuator.
3.4
linear actuator
actuator which transmits thrust to the valve for a defined linear stroke (3.14)
Note 1 to entry: In this document, a combination of a multi-turn actuator (3.3) plus a linear drive is considered as
a linear actuator.
3.5
torque
moment of a force, the measure of a force’s tendency to produce torsion and rotation about an axis, a
turning or twisting force
Note 1 to entry: Torque is expressed in Newton meters.
3.6
rated torque
maximum torque (3.5) available for valve operation, as stated by the manufacturer
3.7
rated thrust
maximum thrust for linear output actuators, available for valve operation, as stated by the manufacturer
or maximum thrust for multi-turn output actuators, the actuator can withstand, as stated by the
manufacturer
3.8
stall torque/thrust
maximum torque (3.5)/thrust or a combination of both that an electric actuator (3.1) develops when the
motor is energized and the output drive (3.18) is locked
Note 1 to entry: This is the torque used to design the mechanically loaded parts of the actuator.
[SOURCE: ISO 12490:2011, 4.23, modified — The word "thrust" was added to the term, the phrase "or a
combination of both" has been added to the definition.]
3.9
maximum allowable stem torque/thrust
MAST
maximum torque (3.5)/thrust that it is permissible to apply to the valve drive train without risk of
damage, as defined by the valve manufacturer/supplier
3.10
set thrust
thrust value limited by the thrust limiting device
3.11
set torque
torque (3.5) value limited by the torque limiting device
2 © ISO 2020 – All rights reserved

ISO 22153:2020(E)
3.12
cycle
movement of the valve obturator from the fully closed position to the fully open position and back to
the fully closed position, or vice versa
[SOURCE: ISO 12490:2011, 4.8, modified — The word "continuous" at the beginning of the definition
has been removed.]
3.13
travel
movement of the actuator in driving a valve obturator, defined in terms of output turns, angular or
linear distance, a percentage thereof or undefined when relating to general movement(s)
3.14
stroke
travel (3.13) of valve obturator from the fully closed position to the fully open position, or vice versa
EXAMPLE End of stroke is predefined as the fully closed or fully open position.
[SOURCE: ISO 12490:2011, 4.25, modified — The example has been added and the word "movement"
has been substituted by "travel".]
3.15
gearbox
gear unit for torque (3.5)/speed/orientation change
[SOURCE: ISO 22109:2020, 3.1, modified — The phrase "that can be manually operated by handwheel/
lever and/or automated with an actuator" has been deleted.]
3.16
nominal motor current
value, expressed in Ampere (A), indicated by the actuator manufacturer, characterising the motor
under specified actuator duty performances
3.17
nominal motor power
value, expressed in Watts (W), indicated by the actuator manufacturer, characterising the motor under
specified actuator duty performances
3.18
output drive
actuator output component necessary to transmit torque (3.5) and/or thrust to the valve in order to
cause operation
3.19
terminal compartment
defined compartment of the actuator for electrical connection of power and/or control and/or
signal wiring
3.20
thermal protecting device
temperature sensing device used to stop motor operation at a temperature defined by the manufacturer
4 Classification — Designation
4.1 General
Electric valve actuators are classified per type, duty and action on loss of external electric power as
detailed below.
ISO 22153:2020(E)
4.2 Type
There are three types of actuators:
— part-turn actuator;
— multi-turn actuator;
— linear actuator.
4.3 Actuator duty classification
The basic design requirements for electric actuators duty classification are given in Table 1.
The electric actuator shall be designed to meet the endurance criteria defined in Table 2, Table 3 or
Table 4.
Table 1 — Duty classification
Class Duty Definition
A On-off The electric actuator is required to drive the valve through its stroke
from the fully open position to the fully closed position or vice-versa.
B Inching/positioning The electric actuator is required to occasionally drive the valve to any
position (fully open, intermediate and fully closed).
C Modulating The electric actuator is required to frequently drive the valve to any
position between fully open and fully closed.
D Continuous modulating The electric actuator is required to continuously drive the valve to
any position between fully open and fully closed.
4.4 Action on loss of external electric power
4.4.1 Stay put action
On loss of external power, the actuator remains in the position achieved before loss of power.
4.4.2 Fail-safe action
4.4.2.1 Electric fail-safe action
On loss of external power, the actuator is able to operate the valve to a predefined position using stored
electrical energy.
4.4.2.2 Mechanical fail-safe action
On loss of external power, the actuator is able to operate the valve to a predefined position using stored
mechanical energy.
5 Design requirements
5.1 Endurance
5.1.1 General
The actuator shall meet the requirements specified in 5.1.2, 5.1.3 and 5.1.4, and satisfy the life endurance
test criteria as defined in Annex A.
4 © ISO 2020 – All rights reserved

ISO 22153:2020(E)
The endurance of modulating and continuous modulating actuators shall be based on consecutive
starts spread over an intermediate travel span of maximum 30 % of the stroke.
NOTE An informative guideline for actuator selection is provided in Annex B.
5.1.2 Part-turn actuators
For part-turn actuators, endurance testing shall meet the requirements specified in Table 2.
Table 2 — Part-turn actuators endurance test requirements (see Annex A)
a
Rated torque ranges Class A and B Class C Class D
Nm On-Off inching Modulating Continuous modulating
b c c
(number of cycles) (number of starts) (number of starts)
Up to 125 10 000 1 800 000 10 000 000
126 – 1 000 10 000 1 200 000 10 000 000
1 001 – 4 000 5 000 500 000 5 000 000
d
4 001 – 32 000 2 500 250 000 T.B.A.
d d
Above 32 000 1 000 T.B.A. T.B.A.
a
Based on ISO 5211.
b
One cycle consists of nominal 90° angular travel in both directions (i.e. 90° to open and 90° to close). The actuator
is able to transmit 100 % of the rated torque for at least 4,5° at each end of travel or for at least 9° at either opened or
closed position in both directions. The average load cannot be below 30 % of the rated torque for the remaining travel
(see Annex C). For angular travel other than 90°, the endurance is agreed between the purchaser and the manufacturer or
supplier. During testing a deviation of +20 % and −5 % in load is accepted.
c
One start consists of a movement of at least 1 % in either direction, with a load of at least 30 % of the rated torque.
d
T.B.A. means to be agreed between manufacturer/supplier and purchaser.
5.1.3 Multi-turn actuators
For multi-turn actuators, endurance testing shall meet the requirements specified in Table 3.
Table 3 — Multi-turn actuators endurance test requirements (see Annex A)
Rated torque Maximum Class A and B Class C Class D
a a
ranges allowable thrust
On-Off inching Modulating Continuous modu-
b c
Nm kN (number of cycles) (number of starts) lating
c
(number of starts)
Up to 100 ≤40 10 000 1 800 000 10 000 000
101 – 700 ≤150 10 000 1 200 000 10 000 000
701 – 2 500 ≤325 5 000 500 000 5 000 000
d
2 501 – 10 000 ≤1 100 2 500 250 000 T.B.A.
d d
Above 10 000 >1 100 1 000 T.B.A. T.B.A.
a
Based on ISO 5210.
b
One cycle consists of 25 turns in both directions (i.e. 25 turns to open and 25 turns to close). The actuator is able to
transmit 100 % of the rated torque for at least 2,5 turns at the closed position in both directions. The average load cannot
be below 30 % of the rated torque for the remaining travel (see Annex C). During testing a deviation of +20 % and −5 % in
load is accepted.
c
One start consists of a movement of at least 1 % of travel in either direction, with a load of at least 30 % of the rated torque.
d
T.B.A. means to be agreed between manufacturer/supplier and purchaser.
5.1.4 Linear actuators
For linear actuators, endurance testing shall meet the requirements specified in Table 4.
ISO 22153:2020(E)
Table 4 — Linear actuators endurance test requirements (see Annex A)
a
Rated thrust ranges Class A and B Class C Class D
kN On-Off inching Modulating Continuous modulating
b c c
(number of cycles) (number of starts) (number of starts)
Up to 20 10 000 1 800 000 10 000 000
21 – 70 10 000 1 200 000 10 000 000
71 – 150 5 000 500 000 5 000 000
d
151 – 325 2 500 250 000 T.B.A.
d d
Above 325 1 000 T.B.A. T.B.A.
a
Based on ISO 5210.
b
One cycle consists of a stroke of 40 mm, or of a minimum stroke (H) given in ISO 5210, in both directions (i.e. 40 mm to
open +40 mm to close). The actuator is able to transmit 100 % of the rated thrust for at least 10 % of the travel. The average
load cannot be below 30 % of the rated thrust for the remaining travel (see Annex C). During testing a deviation of +20 %
and −5 % in load is accepted.
c
One start consists of a movement of at least 1 % of the stroke in either direction, with a load of at least 30 % of the
rated thrust.
d
T.B.A. means to be agreed between manufacturer/supplier and purchaser.
5.2 Environmental conditions
5.2.1 General
The environmental conditions given in 5.2.2 to 5.2.6 shall apply to the design capabilities.
5.2.2 Ambient temperature and humidity
The actuator shall be capable of operation at an ambient temperature range between –20 °C and +60 °C
with relative humidity up to 90 % (25 °C).
5.2.3 Altitude
The actuator shall be capable of operation at an altitude at least 1 000 m above sea level.
5.2.4 Enclosure protection
Electric actuators shall have at least enclosure protection type IP 65 in accordance with IEC 60529.
5.2.5 External corrosion protection
Electric actuators shall be protected against external corrosion by proper material selection and/or
surface treatment. The actuator manufacturer's technical documentation shall specify the corrosion
protection category (or categories) according to Table 5.
Table 5 — Environmental corrosion categories
Typical environments
Corrosion category
Exterior Interior
C2 (low) Atmospheres with low level of pollu- Unheated buildings where condensa-
tion and mostly rural areas tion can occur, e.g. depots, sport halls.
C3 (medium) Urban and industrial atmospheres, Production rooms with high humidity
moderate sulphur dioxide pollution and some air pollution, e.g. food-pro-
and coastal areas with low salinity cessing plants, laundries, breweries
NOTE  This table is taken, for reference purposes only, from ISO 12944-2. The actuator corrosion protection can also be
achieved by systems/methods which deviate from those specified in ISO 12944-5.
6 © ISO 2020 – All rights reserved

ISO 22153:2020(E)
Table 5 (continued)
Typical environments
Corrosion category
Exterior Interior
C4 (high) Industrial areas and coastal areas Chemical plants, swimming pools,
with moderate salinity coastal shipyards
C5-I (very high — industrial) Industrial areas with high humidity Buildings or areas with almost per-
and aggressive atmosphere manent condensation and with high
pollution
C5-M (very high — marine) Coastal and offshore areas with high Buildings or areas with almost per-
salinity manent condensation and with high
pollution
Immersed in water
Im 1 (Immersed in fresh water) River installations, hydro-electric power plants
Im 2 (Immersed in sea or Harbour areas and offshore structures
brackish water)
NOTE  This table is taken, for reference purposes only, from ISO 12944-2. The actuator corrosion protection can also be
achieved by systems/methods which deviate from those specified in ISO 12944-5.
5.2.6 Vibrations, shock and seismic conditions
Considerations for vibrations, shock and/or seismic conditions are not given in this document. If any of
these conditions apply, they shall be agreed between the manufacturer/supplier and the purchaser.
5.3 Actuator attachment
5.3.1 Part-turn actuators
The attachment for part-turn actuators shall comply with ISO 5211.
The output drive of part-turn actuators may be an integral or a removable component to allow it, when
necessary, to be machined to suit the driven component of the valve.
The material of the drive component shall be indicated in the manufacturer’s/supplier’s documentation.
5.3.2 Multi-turn actuators
The attachment for multi-turn actuators shall comply with ISO 5210.
The output drive of multi-turn actuators may be an integral or a removable component to allow it, when
necessary, to be machined to suit the driven component of the valve.
The material of the drive component shall be indicated in the manufacturer’s/supplier’s documentation.
5.3.3 Linear actuators
The attachment for linear actuators shall comply with ISO 5210, unless otherwise agreed between the
manufacturer/supplier and the purchaser.
The output drive of linear actuators may be an integral part or a removable component to allow it, when
necessary, to be machined to suit the driven component of the valve.
The output drive of linear actuators may include a removable component to allow it, when necessary, to
be machined to suit the driven component of the valve.
The material of the drive component shall be indicated in the manufacturer’s/ supplier’s documentation.
ISO 22153:2020(E)
5.4 Primary closing direction
The primary closing direction shall be:
a) for multi-turn and part-turn actuators clockwise (CW), as viewed from the actuator side of the
interface when looking towards the valve;
b) for linear actuators, extended to close.
5.5 Fail-safe direction
For actuators with a fixed installed fail-safe function, the fail-safe direction of movement can be either
clockwise or counter-clockwise (extend or retract for linear). It shall be clearly and permanently
indicated on the actuator housing in accordance with Figure 1 (see Clause 8).
For actuators providing fail-safe function on loss of main electrical power, supplied documentation
shall include default fail-safe action/direction, possible configurable options and warnings regarding
stored electric or spring energy.
a)  Turn clockwise b)  Turn counter- c)  Extend d)  Retract
(CW) clockwise (CCW)
Figure 1 — Fail-safe directions
5.6 Electrical connections — Cable entries
All internal electrical components requiring connection to external cables shall be wired to terminals
in a defined compartment.
5.7 Self-locking/braking
The physical concept of self-locking only applies to particular types of actuators and is not securing
positions under all conditions, for example vibrations. If the position of the actuator is stable with
torques/thrust applied to the output, the actuator and/or additional components might need to be
designed for these applications.
Braking, locking devices or assemblies might be integral parts of actuators and/or additional
components provided by the supplier to the customer/end-user, in order to secure any given position
within the stroke or cycle (in particular in the fully closed position).
In order to provide better positioning, and limit overshooting of positions, active braking or other
solutions can be necessary to incorporate into the actuator and/or additional components.
8 © ISO 2020 – All rights reserved

ISO 22153:2020(E)
5.8 Performance
5.8.1 Power supply tolerances
The actuator shall be able to provide its rated torque, at the specified power supply, within the following
supply tolerances:
a) nominal voltage: ±10 %;
b) frequency (for AC supplies): ±2 %;
c) for AC supplies, in respect of waveform and harmonics etc., actuators shall be suitable for operation
with power supplies meeting recognised utility supply standards/regulations. For AC supplies
operating outside such standards (e.g. VFD, UPS) agreement shall be reached between customer
and manufacturer.
5.8.2 Actuator duty performances
5.8.2.1 General
The minimum number of cycles per hour, starts per hour and/or running time per hour, for each
actuator duty class shall be as specified in 5.8.2.2, 5.8.2.3 and 5.8.2.4 and are based on an ambient
temperature of +40 °C. For other ambient temperatures, the manufacturer/supplier may state de-rating
factors or applicable values.
5.8.2.2 Part-turn actuators
For part-turn actuators, duty performances shall meet the requirements specified in Table 6.
Table 6 — Part-turn actuators duty performance
Rated torque range Class A Class B Class C Class D
Nm On-Off Inching Modulating Continuous
a b c c
(cycles per hour) (starts per hour) (starts per hour) (starts per hour)
Up to125 15 120 1 200 3 600
126 – 1 000 10 60 600 1 800
1 001 – 4 000 5 30 300 600
d
4 001 – 32 000 5 15 60
d
Above 32 000 5 5 30
a
One cycle consists of nominal 90° angular travel in both directions (i.e. 90° to open + 90° to close), based on an average
load of at least 30 % of the rated torque with the ability to transmit 100 % of the rated torque for at least 5 % at each end of
travel, with a cumulative operating time not exceeding 15 min in one hour.
b
One start consists of a movement of at least 1° in either direction, with a load of at least 30 % of the rated torque.
The cyclic duration factor (i.e. the ratio between the running period and total period) shall be not less than 25 % (e.g. 1 s
running and 3 s resting).
c
One start consists of a movement of at least 1° in either direction, with a load of at least 30 % of the rated torque.
d
To be agreed between the manufacturer/supplier and the purchaser.
5.8.2.3 Multi-turn actuators
For multi-turn actuators, duty performances shall meet the requirements specified in Table 7.
ISO 22153:2020(E)
Table 7 — Multi-turn actuators duty performance
Class A Class D
Rated torque Class B Class C
range On-Off Continuous
Inching Modulating
(running time per modulating
b c
Nm (starts per hour) (starts per hour)
a d
hour) (starts per hour)
Up to 100 15 min 30 1 200 3 600
101 – 700 15 min 20 600 1 800
701 –2 500 15 min 15 300 600
e
2 501 – 10 000 15 min 10 60
e
Above 10 000 15 min 5 30
a
Based on an average load of at least 30 % of th
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