ISO/FDIS 5210
(Main)Industrial valves — Multi-turn actuator attachments
Industrial valves — Multi-turn actuator attachments
This document specifies the requirements for the attachment of multi-turn actuators to valves. Throughout this document, “actuator” can be understood as “actuator and/or gearbox” providing a multi-turn and/or linear output. It specifies: — flange dimensions necessary for the attachment of actuators to industrial valves [see Figure 1 a)] or to intermediate supports [see Figure 1 b)]; — those driving component dimensions of actuators which are necessary to attach them to the driven components; — reference values for torque and thrust for flanges having the dimensions specified in this document.
Robinetterie industrielle — Raccordement des actionneurs multitours
Le présent document prescrit les exigences de raccordement des actionneurs multitours aux appareils de robinetterie. Tout au long du présent document, le terme «actionneur» peut être compris comme «actionneur et/ou réducteur» fournissant une sortie multitours et/ou linéaire. Il prescrit: — les dimensions des brides nécessaires pour le raccordement des actionneurs aux appareils de robinetterie industrielle [voir Figure 1 a)] ou aux supports intermédiaires [voir Figure 1 b)]; — les dimensions des éléments d'entraînement des actionneurs nécessaires à leur accouplement aux éléments entraînés; — les valeurs de référence du couple et de la poussée pour les brides ayant les dimensions spécifiées dans le présent document.
General Information
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Standards Content (Sample)
FINAL DRAFT
International
Standard
ISO/TC 153
Industrial valves — Multi-turn
Secretariat: AFNOR
actuator attachments
Voting begins on:
Robinetterie industrielle — Raccordement des actionneurs 2025-11-04
multitours
Voting terminates on:
2025-12-30
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 153
Industrial valves — Multi-turn
Secretariat: AFNOR
actuator attachments
Voting begins on:
Robinetterie industrielle — Raccordement des actionneurs
multitours
Voting terminates on:
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Maximum torques and thrusts . 2
5 Flange dimensions . 2
6 Designation . 4
7 Dimensions of driving and driven components . 4
7.1 General .4
7.2 Dimensions for assemblies capable of transmitting both torque and thrust: Group A .5
7.3 Dimensions for assemblies capable of transmitting torque only: Group B .6
7.4 Dimensions for assemblies capable of transmitting torque only: Group C.8
7.5 Dimensions for assemblies capable of transmitting torque only: Group D .9
7.6 Dimensions for assemblies capable of transmitting thrust only: Group linear actuators .10
Annex A (informative) Explanation of calculations .12
Annex B (normative) Dimensions of keys and keyways . 14
Bibliography .20
iii
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 69, Industrial valves, in accordance with
the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This fourth edition cancels and replaces the third edition (ISO 5210:2023), which has been technically
revised.
The main changes are as follows:
— Figure 2 and Table 2 were updated for through bolting;
— output drive group B were clarified and updated;
— editorial changes were made.
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.
iv
Introduction
The purpose of this document is to establish certain basic requirements for the attachment of multi-turn
actuators, in order to define the interface between actuator and valve.
This document is, in general, considered in conjunction with the specific requirements which may be agreed
between the parties concerned.
NOTE 1 In this document, the term “valve” can also be understood to include “valve with an intermediate support”
[see Figure 1 b)].
NOTE 2 When a combination of a multi-turn actuator and separate multi-turn/linear gearbox is coupled to form an
actuator, the multi-turn attachment to the gearbox is in accordance with this document [see Figures 1 c) and 1 d)]. A
combination of a multi-turn actuator with integral multi-turn/linear gearbox supplied as an actuator is in accordance
with Figures 1 a) and 1 b).
a) Direct interface b) Intermediate support c) Direct interface d) Intermediate support
interface (when combination of interface (when combi-
a multi-turn actuator nation of a multi-turn ac-
and multi-turn/linear tuator and a multi-turn/
gearbox) linear gearbox)
Key
1 multi-turn/linear actuator
2 interface (see ISO 5210)
3 valve
4 intermediate support
5 gearbox
6 interface (see ISO 5210)
7 multi-turn actuator
Figure 1 — Interface between multi-turn/linear actuator and valve
v
FINAL DRAFT International Standard ISO/FDIS 5210:2025(en)
Industrial valves — Multi-turn actuator attachments
1 Scope
This document specifies the requirements for the attachment of multi-turn actuators to valves.
Throughout this document, “actuator” can be understood as “actuator” or “combination of actuator with
gearbox” providing a multi-turn or linear output.
This document specifies:
— flange dimensions necessary for the attachment of actuators to industrial valves [see Figure 1 a)] or to
intermediate supports [see Figure 1 b)];
— those driving component dimensions of actuators which are necessary to attach them to the driven
components;
— reference values for torque and thrust for flanges having the dimensions specified in this document.
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 273, Fasteners — Clearance holes for bolts and screws
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
actuator
device designed for attachment to a general-purpose industrial valve in order to provide for the operation of
the valve
Note 1 to entry: The device is designed to operate using motive energy which can be electrical, pneumatic, hydraulic,
manual, etc., or a combination of these. Movement is limited by travel, torque (3.4) or thrust (3.5) or combination of both.
3.2
multi-turn actuator
actuator (3.1) which transmits torque (3.4) to the valve for at least one revolution and may be capable of
withstanding thrust (3.5)
Note 1 to entry: An actuator can be a combination of a multi-turn actuator and multi-turn gearbox.
3.3
linear actuator
actuator (3.1) which transmits thrust (3.5) to the valve for a defined linear stroke
Note 1 to entry: An actuator can be a combination of a multi-turn actuator (3.2) and linear gearbox.
3.4
torque
turning moment transmitted through the mounting flanges and couplings
Note 1 to entry: Torque is expressed in newton-metres (N·m).
3.5
thrust
axial force transmitted through the mounting flanges and couplings
Note 1 to entry: Thrust is expressed in kilonewtons (kN).
4 Maximum torques and thrusts
The torque and thrust shall comply with the values listed in Table 1 which represent the maximum torques
and thrusts which can be transmitted simultaneously through the mounting flanges and couplings. They are
based upon specified criteria.
Table 1 — Maximum torque and thrust values
Torque Thrust
Flange type
[N·m] [kN]
F05 20 10
F07 40 20
F10 100 40
F12 250 70
F14 400 100
F16 700 150
F25 1 200 200
F30 2 500 325
F35 5 000 700
F40 10 000 1 100
F48 20 000 2 000
F60 40 000 4 000
The values specified in Table 1 have been defined on the basis of bolts in tension at a stress of 290 MPa and
a coefficient of friction of 0,2 between the mounting interface. All variations in these defined parameters
lead to variations of the transmittable torque or thrust or combination of both values. See Annex A for an
explanation of the calculation method.
The selection of flange size for a particular application should take account of additional combination of
torques and thrust that may be generated at the valve stem because of sizing, safety factors, inertia or other
similar factors. Specifically, the torque and thrust generated at the maximum output torque and thrust of
the selected actuator shall be calculated and considered in the selection of the flange along with the ability
of the valve and actuator to withstand such torque and thrust forces.
5 Flange dimensions
Flanges for actuator attachment shall comply with the dimensions shown in Figure 2 and given in Table 2.
The method of attachment shall be by means of studs or through bolting.
Holes for the studs/bolts shall be positioned off-centre (see Figure 3 and Table 3), shall be equi-spaced and
shall conform to the requirements of ISO 273.
The interface on the valve shall have a recess corresponding to the diameter d . A spigot on the actuator is
optional.
The minimum values for dimension h shown in Table 2 apply to flanges having material of proof stress
R ≥ 200 MPa. The minimum values for dimension h applied to flanges having materials of proof stress
e 2
R ≤ 200 MPa shall be agreed between manufacturer and purchaser. The minimum values for dimension h
e 3
shall be at least 1 × d .
Dimension d has been based on providing sufficient landing for the nuts and bolt heads where applicable.
Such landing is defined as a radius from the bolt hole centre with the dimension (d − d ) / 2 and is a
1 3
minimum. The flange shape of both valve and actuator outside these areas of landing is left to the discretion
of the manufacturer.
The dimensions and bolting material are based on bolts in tension at a maximum stress of 290 MPa. On
agreement, between the manufacturer/supplier and purchaser, bolting material with different tensile
strength can be used, with no dimensional changes but with potential variation of the transmittable torque
and thrust value.
Figure 2 — Flange dimensions
Table 2 — Flange dimensions
Dimensions in millimetres
Dimensions Number of
studs or
Flange
c d
d h h h h h
1 a b 1 2 3 4 5 bolts
type
d d d d
2 3 4 5
min. max. min. min. min. min.
n
F05 ∅65 ∅35 ∅50 M6 ∅6,6 3 9 6 6 6 4
F07 ∅90 ∅55 ∅70 M8 ∅9 3 12 8 8 8 4
F10 ∅125 ∅70 ∅102 M10 ∅11 3 15 10 10 10 4
F12 ∅150 ∅85 ∅125 M12 ∅13,5 3 18 12 14 12 4
F14 ∅175 ∅100 ∅140 M16 ∅17,5 4 24 16 18 16 4
F16 ∅210 ∅130 ∅165 M20 ∅22 5 30 20 22 20 4
F25 ∅300 ∅200 ∅254 M16 ∅17,5 5 24 16 18 16 8
F30 ∅350 ∅230 ∅298 M20 ∅22 5 30 20 22 20 8
a
d shall be manufactured within the diameter tolerance f8.
b
d clearance holes for bolts and screws according to ISO 273 (medium as a recommendation).
c
h based on ISO 4033 – Hexagon high nuts (style 2).
d
h based on 1,0x d .
5 4
TTabablele 2 2 ((ccoonnttiinnueuedd))
Dimensions Number of
studs or
Flange
c d
d h h h h h
1 1 2 3 4 5 bolts
type a b
d d d d
2 3 4 5
min. max. min. min. min. min.
n
F35 ∅415 ∅260 ∅356 M30 ∅33 5 45 30 30 30 8
F40 ∅475 ∅300 ∅406 M36 ∅39 8 54 36 36 36 8
F48 ∅560 ∅370 ∅483 M36 ∅39 8 54 36 36 36 12
F60 ∅686 ∅470 ∅603 M36 ∅39 8 54 36 36 36 20
a
d shall be manufactured within the diameter tolerance f8.
b
d clearance holes for bolts and screws according to ISO 273 (medium as a recommendation).
c
h based on ISO 4033 – Hexagon high nuts (style 2).
d
h based on 1,0x d .
5 4
Figure 3 — Positions of the holes for the studs/bolts
Table 3 — Positions of holes
Flange type α/2
F05 to F16 45 °
F25 to F40 22,5 °
F48 15 °
F60 9 °
6 Designation
Flanges are designated by flange type according to Table 1.
7 Dimensions of driving and driven components
7.1 General
The dimensions of the driving and driven components shall comply with the dimensions given in Tables 4 to 8.
The depth of engagement of the valve-driven component into the actuator drive component and the
surface area of contact between the faces of the actuator drive component and the faces of the valve-driven
component should be considered to ensure that the stresses caused by contact do not exceed the capability
of the component materials. In some cases it can be necessary to use materials with superior mechanical
properties and/or to reduce the output torque of the actuator.
7.2 Dimensions for assemblies capable of transmitting both torque and thrust: Group A
Dimensions for assemblies of group A shall be as shown in Figure 4 and Figure 5 and given in Table 4.
Figure 4 — Driving component, group A
a) Example for rising stem b) Example for rising stem with c) Example for non-rising stem
limit stop
Figure 5 — Examples for rising and non-rising stem — Driven component, group A
For rising stem dimension d permits clearance for the rising and non-rotating stem and for any device to
restrict the downward travel of the valve stem.
For non-rising stem dimension d permits the clearance of the stem-locking and thrust-taking components
of the non-rising and rotating stem.
Table 4 — Dimensions for group A drive components
Dimensions in millimetres
a a
Flange type d min. d max. l min. h max.
6 6 1 3
F05 ∅18 ∅22 20 40
F07 ∅20 ∅26 25 60
F10 ∅28 ∅40 40 80
F12 ∅32 ∅48 48 95
F14 ∅36 ∅55 55 110
F16 ∅44 ∅75 70 135
F25 ∅60 ∅85 90 150
F30 ∅80 ∅100 110 175
F35 ∅100 ∅150 150 250
F40 ∅120 ∅175 180 325
F48 ∅120 ∅175 180 350
F60 ∅120 ∅180 180 400
a
The driving component is capable of accepting a diameter up to and including
the values d min. shown in Figure 4. The driving component may accept larger
diameters up to the values of d max.
7.3 Dimensions for assemblies capable of transmitting torque only: Group B
Dimensions for assemblies of group B shall be as shown in Figure 6 a) or Figure 6 b) and Figure 7 a) or
Figure 7 b) and given in Table 5. Dimensions of keys and keyways shall conform with those given in Annex B
or any national standard.
Group B is divided into four sub-groups, for actuators with through and blind hole driving components,
where the
...
ISO/FDIS 5210:2025(en)
ISO/TC 153/WG 1
Secretariat: AFNOR
Date: 2025-09-2910-20
Industrial valves — Multi-turn actuator attachments
Robinetterie industrielle — Raccordement des actionneurs multitours
FDIS stage
ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
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: + 41 22 749 01 11
E-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
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© ISO 2025 – All rights reserved
ii
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Formatted: HeaderCentered, Left
Contents
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Maximum torques and thrusts . 2
5 Flange dimensions . 3
6 Designation . 7
7 Dimensions of driving and driven components . 7
7.1 General . 7
7.2 Dimensions for assemblies capable of transmitting both torque and thrust: Group A . 7
7.3 Dimensions for assemblies capable of transmitting torque only: Group B . 10
7.4 Dimensions for assemblies capable of transmitting torque only: Group C . 13
7.5 Dimensions for assemblies capable of transmitting torque only: Group D . 15
7.6 Dimensions for assemblies capable of transmitting thrust only: Group linear actuators . 17
Annex A (informative) Explanation of calculations . 20
Annex B (normative) Dimensions of keys and keyways . 22
Bibliography . 28
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Maximum torques and thrusts . 2
5 Flange dimensions . 3
6 Designation . 5
7 Dimensions of driving and driven components . 5
7.1 General . 5
7.2 Dimensions for assemblies capable of transmitting both torque and thrust: Group A . 5
7.3 Dimensions for assemblies capable of transmitting torque only: Group B . 7
7.4 Dimensions for assemblies capable of transmitting torque only: Group C . 9
7.5 Dimensions for assemblies capable of transmitting torque only: Group D .10
7.6 Dimensions for assemblies capable of transmitting thrust only: Group Linear actuators .11
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Annex A (informative) Explanation of calculations .13
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Annex B (normative) Dimensions of keys and keyways .15
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Bibliography .20
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© ISO 2025 – All rights reserved
iii
ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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, in collaboration with the European
Formatted: Adjust space between Latin and Asian text,
Committee for Standardization (CEN) Technical Committee CEN/TC 69, Industrial valves, in accordance with
Adjust space between Asian text and numbers
the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This fourth edition cancels and replaces the third edition (ISO 5210:2023), which has been technically revised.
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The main changes are as follows:
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— — Figure 20 and Table 20 were updated for through bolting;
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— — output drive group B were clarified and updated;
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— — editorial changes were made.
Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
Any feedback or questions on this document should be directed to the user’s national standards body. A
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
complete listing of these bodies can be found at www.iso.org/members.html.
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© ISO 2025 – All rights reserved
iv
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Introduction
The purpose of this document is to establish certain basic requirements for the attachment of multi-turn
actuators, in order to define the interface between actuator and valve.
This document is, in general, considered in conjunction with the specific requirements which may be agreed
between the parties concerned.
NOTE 1 In this document, the term “valve” can also be understood to include “valve with an intermediate support”
Formatted: Adjust space between Latin and Asian text,
[see Figure 10 b)].
Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
NOTE 2 When a combination of a multi-turn actuator and separate multi-turn/linear gearbox is coupled to form an
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
actuator, the multi-turn attachment to the gearbox is in accordance with this document [see Figures 10 c) and 1 d)]. A
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combination of a multi-turn actuator with integral multi-turn/linear gearbox supplied as an actuator is in accordance
with Figures 10 a) and 1 b).
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v
ISO/FDIS 5210:2025(en)
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Asian text, Adjust space between Asian text and
numbers
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a) Direct interface b) Intermediate support c) Direct interface (when d) Intermediate support
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interface combination of a multi- interface (when
turn actuator and multi- combination of a multi-
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turn/linear gearbox) turn actuator and a multi-
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turn/linear gearbox)
Latin and Asian text, Adjust space between Asian text
and numbers, Tab stops: Not at 0.7 cm + 1.4 cm + 2.1
Key
cm + 2.8 cm + 3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm +
1 multi-turn/linear actuator 5 gearbox
6.3 cm + 7 cm
2 interface (see ISO 5210) 6 interface (see ISO 5210)
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3 valve 7 multi-turn actuator
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4 intermediate support
1 multi-turn/linear actuator Formatted: Font: 10 pt
2 interface (see ISO 5210)
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3 valve
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4 intermediate support
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5 gearbox
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© ISO 2025 – All rights reserved
vi
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6 interface (see ISO 5210)
7 multi-turn actuator
Figure 1 — Interface between multi-turn/linear actuator and valve
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numbers
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© ISO 2025 – All rights reserved
vii
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Industrial valves — Multi-turn actuator attachments
1 Scope
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Adjust space between Asian text and numbers
This document specifies the requirements for the attachment of multi-turn actuators to valves.
Throughout this document, “actuator” can be understood as “actuator” or “combination of actuator with
Formatted: Adjust space between Latin and Asian text,
gearbox” providing a multi-turn or linear output. Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
This document specifies: 3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
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— — flange dimensions necessary for the attachment of actuators to industrial valves [see Figure 10 a)] or
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to intermediate supports [see Figure 10 b)];
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— — those driving component dimensions of actuators which are necessary to attach them to the driven Formatted: Default Paragraph Font
components;
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— — reference values for torque and thrust for flanges having the dimensions specified in this document.
Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
2 Normative references
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
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The following documents are referred to in the text in such a way that some or all of their content constitutes
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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.
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ISO 273, Fasteners — Clearance holes for bolts and screws
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
3 Terms and definitions
Formatted: English (United States)
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For the purposes of this document, the following terms and definitions apply.
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between Asian text and numbers
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
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— — ISO Online browsing platform: available at https://www.iso.org/obp
Formatted: Adjust space between Latin and Asian text,
— — IEC Electropedia: available at https://www.electropedia.org/
Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
3.1 3.1
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
actuator
Formatted: English (United States)
device designed for attachment to a general-purpose industrial valve in order to provide for the operation of
Formatted: TermNum2, Don't keep lines together,
the valve
Adjust space between Latin and Asian text, Adjust space
between Asian text and numbers
Note 1 to entry: The device is designed to operate using motive energy which can be electrical, pneumatic, hydraulic,
manual, etc., or a combination of these. Movement is limited by travel, torque (3.4) or thrust (3.5)(Error! Reference
Formatted: Adjust space between Latin and Asian text,
source not found.) or thrust (Error! Reference source not found.) or combination of both.
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3.2 3.2
Adjust space between Asian text and numbers, Tab
multi-turn actuator
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
actuator (3.1)(Error! Reference source not found.) which transmits torque (3.4)(Error! Reference source
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
not found.) to the valve for at least one revolution and may be capable of withstanding thrust (3.5)(Error!
Formatted: Font: 11 pt
Reference source not found.)
Formatted: Justified, Space Before: 18 pt, After: 6 pt,
Note 1 to entry: An actuator can be a combination of a multi-turn actuator and multi-turn gearbox.
Line spacing: single
ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
3.3 3.3
Formatted: English (United States)
linear actuator
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actuator (3.1)(Error! Reference source not found.) which transmits thrust (3.5)(Error! Reference source
Adjust space between Latin and Asian text, Adjust space
not found.) to the valve for a defined linear stroke
between Asian text and numbers
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Note 1 to entry: An actuator can be a combination of a multi-turn actuator (3.2)(Error! Reference source not found.)
Adjust space between Asian text and numbers
and linear gearbox.
Formatted
...
3.4 3.4
Formatted
...
torque
turning moment transmitted through the mounting flanges and couplings Formatted: English (United States)
Formatted
...
Note 1 to entry: Torque is expressed in newton-metres. (N·m).
Formatted
...
3.5 3.5
Formatted: English (United States)
thrust
Formatted
...
axial force transmitted through the mounting flanges and couplings
Formatted
...
Note 1 to entry: Thrust is expressed in kilonewtons. (kN).
Formatted
...
4 Maximum torques and thrusts
Formatted
...
The torque and thrust shall comply with the values listed in Table 10 which represent the maximum torques
and thrusts which can be transmitted simultaneously through the mounting flanges and couplings. They are
based upon specified criteria.
Formatted
...
Table 1 — Maximum torque and thrust values
Formatted: Font: Not Bold
Torque Thrust Formatted
...
Flange type
[N·m] [kN]
Formatted
...
F05 20 10
Formatted
...
F07 40 20
Formatted
...
F10 100 40
Formatted
...
F12 250 70
Formatted
...
F14 400 100 Formatted
...
Formatted
F16 700 150
...
Formatted
F25 1 200 200
...
Formatted
F30 2 500 325 .
Formatted
...
F35 5 000 700
Formatted
...
F40 10 000 1 100
Formatted
...
F48 20 000 2 000
Formatted
...
F60 40 000 4 000
Formatted
...
The values specified in Table 10 have been defined on the basis of bolts in tension at a stress of 290 MPa and Formatted: Font: 10 pt
a coefficient of friction of 0,2 between the mounting interface. All variations in these defined parameters lead
Formatted: Font: 10 pt
to variations of the transmittable torque or thrust or combination of both values. See Annex ASee Annex A for
Formatted: Font: 10 pt
an explanation of the calculation method.
Formatted: FooterCentered, Left, Line spacing: single
The selection of flange size for a particular application should take account of additional combination of
Formatted: Font: 11 pt
torques and thrust that may be generated at the valve stem because of sizing, safety factors, inertia or other
Formatted
...
© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
similar factors. Specifically, the torque and thrust generated at the maximum output torque and thrust of the
selected actuator shall be calculated and considered in the selection of the flange along with the ability of the
valve and actuator to withstand such torque and thrust forces.
5 Flange dimensions
Flanges for actuator attachment shall comply with the dimensions shown in Figure 2 and given in Table 2.0
and given in 0. The method of attachment shall be by means of studs or through bolting.
Holes for the studs/bolts shall be positioned off-centre (see Figure 3 and Table 3),0 and 0), shall be equi-
spaced and shall conform to the requirements of ISO 273.
Formatted: Default Paragraph Font
Formatted: Default Paragraph Font
The interface on the valve shall have a recess corresponding to the diameter d . A spigot on the actuator is
optional.
The minimum values for dimension h shown in Table 20 apply to flanges having material of proof stress
R ≥ 200 MPa. The minimum values for dimension h applied to flanges having materials of proof stress
e 2
R ≤ 200 MPa shall be agreed between manufacturer and purchaser. The minimum values for dimension h
e 3
shall be at least 1 × d4.
Dimension d1 has been based on providing sufficient landing for the nuts and bolt heads where applicable.
Such landing is defined as a radius from the bolt hole centre with the dimension (d − d ) / 2 and is a minimum.
1 3
The flange shape of both valve and actuator outside these areas of landing is left to the discretion of the
manufacturer.
The dimensions and bolting material are based on bolts in tension at a maximum stress of 290 MPa. On
agreement, between the manufacturer/supplier and purchaser, bolting material with different tensile
strength can be used, with no dimensional changes but with potential variation of the transmittable torque
and thrust value.
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
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© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
Figure 2 — Flange dimensions
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Asian text, Adjust space between Asian text and
numbers
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Formatted: Font: 11 pt
Formatted: FooterPageNumber, Left, Space After: 0 pt,
Line spacing: single
© ISO 2025 – All rights reserved
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ISO/FDIS 5210:2025(en)
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Table 2 — Flange dimensions
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...
Dimensions in millimetres
Formatted
...
Dimensions Number
Formatted
of studs
Flange .
c c d d
d1 d2 d5 h1 h2 h3 h4 h4 h5 h5 or bolts
type
d3 d4 Formatted
...
a a b b
min. d d max. min. min. min. min.
2 5
n
Formatted
...
F05 ∅65 ∅35 ∅50 M6 ∅6,6 3 9 6 6 6 4
Formatted
...
F07 ∅90 ∅55 ∅70 M8 ∅9 3 12 8 8 8 4
Formatted
...
F10 ∅125 ∅70 ∅102 M10 ∅11 3 15 10 10 10 4
Formatted
...
F12 ∅150 ∅85 ∅125 M12 ∅13,5 3 18 12 14 12 4
Formatted
...
F14 ∅175 ∅100 ∅140 M16 ∅17,5 4 24 16 18 16 4
Formatted
...
F16 ∅210 ∅130 ∅165 M20 ∅22 5 30 20 22 20 4
Formatted
...
F25 ∅300 ∅200 ∅254 M16 ∅17,5 5 24 16 18 16 8
Formatted
...
F30 ∅350 ∅230 ∅298 M20 ∅22 5 30 20 22 20 8 Formatted
...
Formatted
F35 ∅415 ∅260 ∅356 M30 ∅33 5 45 30 30 30 8
...
Formatted
F40 ∅475 ∅300 ∅406 M36 ∅39 8 54 36 36 36 8 .
Formatted
F48 ∅560 ∅370 ∅483 M36 ∅39 8 54 36 36 36 12 .
Formatted
...
F60 ∅686 ∅470 ∅603 M36 ∅39 8 54 36 36 36 20
Formatted
a .
d2 shall be manufactured within the diameter tolerance f8.
b
Formatted
d5 clearance holes for bolts and screws according to ISO 273 (medium as a recommendation).
...
c
h based on ISO 4033 – Hexagon high nuts (style 2).
Formatted
...
d
h based on 1,0x d .
5 4
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© ISO 2025 – All rights reserved
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ISO/FDIS 5210:2025(en)
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Figure 3 — Positions of the holes for the studs/bolts
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Asian text, Adjust space between Asian text and
numbers
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Formatted: Font: 10 pt
Formatted: Font: 10 pt
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© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
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Table 3 — Positions of holes
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Asian text, Adjust space between Asian text and
Flange type α/2
numbers
F05 to F16 45 °
Formatted: Font: Not Bold
F25 to F40 22,5 ° Formatted: Font: Not Bold
F48 15 ° Formatted: Adjust space between Latin and Asian text,
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F60 9 °
Formatted Table
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6 Designation
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Flanges are designated by flange type according to Table 1.0.
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7 Dimensions of driving and driven components
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7.1 General
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The dimensions of the driving and driven components shall comply with the dimensions given in Tables 4 to
8.0 to 0.
Formatted: Space Before: 12 pt, Adjust space between
Latin and Asian text, Adjust space between Asian text
The depth of engagement of the valve-driven component into the actuator drive component and the surface
and numbers
area of contact between the faces of the actuator drive component and the faces of the valve-driven
Formatted: Adjust space between Latin and Asian text,
component, should be considered to ensure that the stresses caused by contact do not exceed the capability
Adjust space between Asian text and numbers
of the component materials. In some cases it can be necessary to use materials with superior mechanical
Formatted: English (United States)
properties and/or to reduce the output torque of the actuator.
Formatted: Adjust space between Latin and Asian text,
7.2 Dimensions for assemblies capable of transmitting both torque and thrust: Group A
Adjust space between Asian text and numbers, Tab
stops: Not at 0.71 cm
Dimensions for assemblies of group A shall be as shown in Figures 4 and 5 and given in Table 4.0 and 0 and
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given in 0.
Adjust space between Asian text and numbers
Formatted: English (United States)
Formatted: Adjust space between Latin and Asian text,
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stops: Not at 0.71 cm
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Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Line spacing: single
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© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
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Figure 4 — Driving component, group A
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Asian text, Adjust space between Asian text and
numbers
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Formatted: Font: 10 pt
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Formatted: FooterCentered, Left, Line spacing: single
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Line spacing: single
© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
Formatted Table
Formatted: Font: Not Bold
Formatted: Font: Not Bold
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Asian text, Adjust space between Asian text and
numbers
Formatted: Font: Not Bold
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between Latin and Asian text, Adjust space between
a) Example for rising stem b) Example for rising stem with limit c) Example for non-rising stem Asian text and numbers
stop
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Adjust space between Asian text and numbers
Figure 5 — Examples for rising and non-rising stem — Driven component, group A
Formatted: Font: 10 pt
For rising stem dimension d permits clearance for the rising and non-rotating stem and for any device to Formatted: Font: 10 pt
restrict the downward travel of the valve stem.
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Line spacing: single
For non-rising stem dimension d5 permits the clearance of the stem-locking and thrust-taking components of
the non-rising and rotating stem. Formatted: Font: 11 pt
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Line spacing: single
© ISO 2025 – All rights reserved
Formatted
...
Formatted
...
ISO/FDIS 5210:2025(en)
Formatted
...
Formatted
...
Formatted
...
Table 4 — Dimensions for group A drive components
Formatted
...
Dimensions in millimetres
Formatted
...
a a
Flange type d min. d max. l min. h max.
6 6 1 3
Formatted
...
F05 ∅18 ∅22 20 40
Formatted
...
F07 ∅20 ∅26 25 60
Formatted
...
F10 ∅28 ∅40 40 80
Formatted
...
F12 ∅32 ∅48 48 95
Formatted
...
F14 ∅36 ∅55 55 110
Formatted
...
F16 ∅44 ∅75 70 135
Formatted
...
F25 ∅60 ∅85 90 150
Formatted
...
F30 ∅80 ∅100 110 175
Formatted
...
F35 ∅100 ∅150 150 250
Formatted
...
F40 ∅120 ∅175 180 325
Formatted
...
F48 ∅120 ∅175 180 350 Formatted
...
F60 ∅120 ∅180 180 400 Formatted
...
a Formatted
The driving component is capable of accepting a diameter up to and including the
...
values d6 min. shown in Figure 4. Without being a requirement, the0. The driving
Formatted
...
component may accept larger diameters up to the values of d max.
Formatted
...
7.3 Dimensions for assemblies capable of transmitting torque only: Group B
Formatted
...
Formatted
...
Dimensions for assemblies of group B shall be as shown in Figure 60 a) or Figure 60 b) and Figure 70 a) or
Formatted
Figure 70 b) and given in Table 5.0. Dimensions of keys and keyways shall conform with those given in .
Annex BAnnex B or any national standard.
Formatted
...
Formatted
...
Group B is divided into four sub-groups, for actuators with through and blind hole driving components, where
the diameter d of the output drive is defined as follows: Formatted
...
Formatted
...
— — through hole [Figure 6[0 a)] driving components:
Formatted
...
— — Type B1: d = d7 H9;
Formatted
...
Formatted
...
— — Type B2: d ≤ d7.
Formatted
...
— — blind hole [Figure 6[0 b)] driving components:
Formatted
...
Formatted
...
— — Type B3: d = d H9;
Formatted
...
— — Type B4: d ≤ d max.
Formatted
...
Formatted
...
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...
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Formatted Table
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...
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...
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© ISO 2025 – All rights reserved
Formatted
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ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
Formatted Table
Formatted: Font: 9 pt, Bold
a) Through hole
b) blindBlind hole
Formatted: Font: 9 pt, Bold
Formatted: Font: 9 pt
Key
1 flange
Formatted: Font: 9 pt, Bold
1 flange
Formatted: Font: 9 pt
Formatted: Key Text, Space Before: 0 pt, After: 0 pt,
Figure 6 — Driving components, group B
Adjust space between Latin and Asian text, Adjust space
between Asian text and numbers, Tab stops: Not at 0.7
cm + 1.4 cm + 2.1 cm + 2.8 cm + 3.5 cm + 4.2 cm +
4.9 cm + 5.6 cm + 6.3 cm + 7 cm
Deleted Cells
Formatted: Space Before: 12 pt, Adjust space between
Latin and Asian text, Adjust space between Asian text
and numbers, Tab stops: Not at 0.7 cm + 1.4 cm + 2.1
cm + 2.8 cm + 3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm +
6.3 cm + 7 cm
Formatted: None, Adjust space between Latin and
Asian text, Adjust space between Asian text and
numbers
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Line spacing: single
Formatted: Font: 11 pt
Formatted: FooterPageNumber, Left, Space After: 0 pt,
Line spacing: single
© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
Formatted: Figure Graphic, Left, Space Before: 0 pt,
After: 0 pt, Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
Formatted Table
Inserted Cells
a) Driven component for through hole b) Driven component for blind or through hole
Formatted: Font: 9 pt, Bold
Formatted: Font: 9 pt
Key
Formatted: Font: 9 pt, Bold
1 interface
1 interface
Formatted: Font: 9 pt
Formatted: Key Text, Space Before: 0 pt, After: 0 pt,
Figure 7 — Driven components, group B
Adjust space between Latin and Asian text, Adjust space
between Asian text and numbers, Tab stops: Not at 0.7
In order to ensure that no interference can occur between the driving component and the driven component, cm + 1.4 cm + 2.1 cm + 2.8 cm + 3.5 cm + 4.2 cm +
it is necessary to limit the length of the driven component l above the interface so that there is an appropriate 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
clearance between both parts.
Formatted: Space Before: 12 pt, Adjust space between
Latin and Asian text, Adjust space between Asian text
and numbers, Tab stops: Not at 0.7 cm + 1.4 cm + 2.1
cm + 2.8 cm + 3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm +
6.3 cm + 7 cm
Formatted: None, Adjust space between Latin and
Asian text, Adjust space between Asian text and
numbers
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Line spacing: single
Formatted: Font: 11 pt
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Line spacing: single
© ISO 2025 – All rights reserved
Formatted
...
Formatted
...
ISO/FDIS 5210:2025(en)
Formatted
...
Formatted
...
Formatted
...
Table 5 — Dimensions for group B drive components
Formatted
...
Dimensions in millimetres
Formatted
...
b b a, b
Flange type d min. d d d d max. h max. l min.
5 7 7 10 10 4 2
Formatted
...
F05 ∅18 ∅22 — — 3 30
Formatted
...
F07 ∅22 ∅28 ∅16 ∅25 3 35
Formatted
...
F10 ∅30 ∅42 ∅20 ∅35 3 45
Formatted
...
F12 ∅35 ∅50 ∅25 ∅40 3 55
Formatted
...
F14 ∅40 ∅60 ∅30 ∅45 4 65
Formatted
...
F16 ∅50 ∅80 ∅40 ∅60 5 80
Formatted
...
F25 ∅65 ∅100 ∅50 ∅75 5 110
Formatted
...
F30 ∅85 ∅120 ∅60 ∅90 5 130
Formatted
...
F35 ∅110 ∅160 ∅80 ∅120 5 180
Formatted
...
F40 ∅130 ∅180 ∅100 ∅160 8 200
Formatted
...
F48 ∅160 ∅220 — — 8 250 Formatted
...
F60 ∅180 ∅280 — — 8 310 Formatted
...
a Formatted
The driving component shall be capable of accepting a diameter up to and including the values d10 shown in Figure 6. Without
...
being a requirement, the0. The driving component may accept larger diameters up to the values of d10 max.
Formatted
...
b
d7 and d10 shall be manufactured within the diameter tolerance H9.
Formatted
...
Formatted
7.4 Dimensions for assemblies capable of transmitting torque only: Group C
...
Formatted
...
Dimensions for assemblies of group C shall be as shown in Figure 8 and given in Table 6.0 and given in 0.
Formatted
...
Formatted
...
Formatted
...
Formatted
...
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...
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...
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© ISO 2025 – All rights reserved
Formatted
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ISO/FDIS 5210:2025(en)
Formatted: HeaderCentered, Left
Formatted: None, Adjust space between Latin and
Asian text, Adjust space between Asian text and
numbers
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
Formatted: Font: Not Bold
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
Formatted: Font: Cambria
Formatted: Font: Cambria
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
Formatted: Font: Cambria
Formatted: Font: Cambria
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
Formatted: Font: Cambria
Formatted: Font: Cambria
Formatted: Adjust space between Latin and Asian text,
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Formatted: Font: Cambria
Formatted: Font: Cambria
Formatted: Adjust space between Latin and Asian text,
Figure 8 — Driving components, group C
Adjust space between Asian text and numbers
Formatted: Font: Cambria
Table 6 — Dimensions for group C drive components
Formatted: Font: Cambria
Dimensions in millimetres
Formatted: Adjust space between Latin and Asian text,
a Adjust space between Asian text and numbers
Flange type d11 min. d12 h11 b1
Formatted: Font: 10 pt
F10 ∅28 ∅42 7 14
Formatted: Font: 10 pt
F14 ∅38 ∅60 8 20
Formatted: Font: 10 pt
F16 ∅47 ∅80 10 24
Formatted: FooterCentered, Left, Line spacing: single
F25 ∅64 ∅100 11 30
Formatted: Font: 11 pt
F30 ∅75 ∅120 13 40
Formatted: FooterPageNumber, Left, Space After: 0 pt,
Line spacing: single
© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
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a
Flange type d11 min. d12 h11 b1
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F35 ∅105 ∅160 17 45
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F40 ∅125 ∅180 20 50
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a
b1 shall be manufactured within the linear tolerance H11.
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7.5 Dimensions for assemblies capable of transmitting torque only: Group D
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Dimensions for assemblies of group D shall be as shown in Figure 90 and given in Table 7.0. Dimensions of
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keys and keyways shall conform with those given in Annex B.Annex B.
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stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
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© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
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Figure 9 — Driving components, group D
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numbers
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© ISO 2025 – All rights reserved
ISO/FDIS 5210:2025(en)
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Table 7 — Dimensions for group D drive components
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Asian text, Adjust space between Asian text and
Dimensions in millimetres
numbers
a a b b
Flange type d d l l b b t
8 8 4 5 3 3 2
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F10 ∅20 50 55 6 22,5 Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
F14 ∅30 70 76 8 33
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
F16 ∅40 90 97 12 43
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F25 ∅50 110 117 14 53,5
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F30 ∅60 120 127 18 64
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F35 ∅80 120 127 22 85
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F40 ∅100 150 164 28 106
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a
d8 shall be manufactured within the diameter tolerance g8.
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b
b3 shall be manufactured within the linear tolerance h9.
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7.6 Dimensions for assemblies capable of transmitting thrust only: Group Linearlinear
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actuators
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For linear actuators, unless otherwise agreed between the manufacturer/supplier and the purchaser, the
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dimensions of the a
...
PROJET FINAL
Norme
internationale
ISO/TC 153
Robinetterie industrielle —
Secrétariat: AFNOR
Raccordement des actionneurs
Début de vote:
multitours
2025-11-04
Industrial valves — Multi-turn actuator attachments
Vote clos le:
2025-12-30
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
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DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
NORMES POUVANT
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
Numéro de référence
PROJET FINAL
Norme
internationale
ISO/TC 153
Robinetterie industrielle —
Secrétariat: AFNOR
Raccordement des actionneurs
Début de vote:
multitours
2025-11-04
Industrial valves — Multi-turn actuator attachments
Vote clos le:
2025-12-30
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
DOCUMENT PROTÉGÉ PAR COPYRIGHT
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
© ISO 2025 INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
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NORMES POUVANT
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
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Publié en Suisse Numéro de référence
ii
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d'application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Couples maximaux et poussées maximales . 2
5 Dimensions des brides . 3
6 Désignation . 5
7 Dimensions des éléments d'entraînement et des éléments entraînés . 5
7.1 Généralités .5
7.2 Dimensions des assemblages prévus pour la transmission d'un couple et d'une poussée:
Groupe A .5
7.3 Dimensions des assemblages capables de transmettre un couple seulement: Groupe B .7
7.4 Dimensions des assemblages capables de transmettre un couple seulement: Groupe C .8
7.5 Dimensions des assemblages capables de transmettre un couple seulement: Groupe D .9
7.6 Dimensions des assemblages capables de transmettre une poussée seulement: groupe
des actionneurs linéaires .10
Annexe A (informative) Explication des calculs.12
Annexe B (normative) Dimensions des clavettes et des clavetages . 14
Bibliographie .20
iii
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux
de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général
confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner l’utilisation
d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité et à l’applicabilité de
tout droit de brevet revendiqué à cet égard. À la date de publication du présent document, l’ISO n'avait pas
reçu notification qu’un ou plusieurs brevets pouvaient être nécessaires à sa mise en application. Toutefois,
il y a lieu d’avertir les responsables de la mise en application du présent document que des informations
plus récentes sont susceptibles de figurer dans la base de données de brevets, disponible à l'adresse
www.iso.org/brevets. L’ISO ne saurait être tenue pour responsable de ne pas avoir identifié tout ou partie de
tels droits de propriété.
Les appellations commerciales éventuellement mentionnées dans le présent document sont données pour
information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion de
l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles techniques au
commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 153, Robinetterie, en collaboration avec
le comité technique CEN/TC 69, Robinetterie industrielle, du Comité européen de normalisation (CEN)
conformément à l’Accord de coopération technique entre l’ISO et le CEN (Accord de Vienne).
Cette quatrième édition annule et remplace la troisième édition (ISO 5210:2023), qui a fait l'objet d'une
révision technique.
Les principales modifications sont les suivantes:
— la Figure 2 et le Tableau 2 ont été mis à jour pour le boulonnage;
— l'entraînement de sortie groupe B a été clarifié et mis à jour;
— des changements éditoriaux ont été effectués.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes se
trouve à l’adresse www.iso.org/fr/members.html.
iv
Introduction
Le présent document a pour but d'établir certaines exigences de base pour le raccordement d'actionneurs
multitours, afin de définir l'interface entre l'actionneur et l'appareil de robinetterie.
Le présent document est, d'une manière générale, considérée conjointement avec les exigences spécifiques
qui peuvent faire l'objet d'un accord entre les parties concernées.
NOTE 1 Dans le présent document, il est possible de comprendre le terme «appareil de robinetterie» comme
incluant «appareil de robinetterie avec un support intermédiaire» [voir Figure 1 b)].
NOTE 2 Quand une combinaison d'un actionneur multitours et d'un réducteur multitour/linéaire séparé est
couplée pour former un actionneur, le raccordement multitours au réducteur est conforme au présent document [voir
Figures 1 c) et 1 d)]. Une combinaison d'un actionneur multitours avec un réducteur multitour/linéaire intégral fourni
comme un actionneur est conforme aux Figures 1 a) et 1 b).
a) Interface directe b) Interface de support c) Interface directe d) Interface de support
intermédiaire (quand combinaison intermédiaire (quand
d'un actionneur combinaison d'un
multitours et actionneur multitours et
d'un réducteur d'un réducteur
multitours/linéaire) multitours/linéaire)
Légende
1 actionneur multitours/linéaire
2 interface (voir ISO 5210)
3 appareil de robinetterie
4 support intermédiaire
5 réducteur
6 interface (voir ISO 5210)
7 actionneur multitours
Figure 1 — Interface entre l’actionneur multitours/linéaire et l’appareil de robinetterie
v
PROJET FINAL Norme internationale ISO/FDIS 5210:2025(fr)
Robinetterie industrielle — Raccordement des actionneurs
multitours
1 Domaine d'application
Le présent document spécifie les exigences de raccordement des actionneurs multitours aux appareils de
robinetterie.
Tout au long du présent document, le terme «actionneur» peut être compris comme «actionneur» ou
«combinaison d'un actionneur avec un réducteur» fournissant une sortie multitours ou linéaire.
Le présent document spécifie:
— les dimensions des brides nécessaires pour le raccordement des actionneurs aux appareils de robinetterie
industrielle [voir Figure 1 a)] ou aux supports intermédiaires [voir Figure 1 b)];
— les dimensions des éléments d'entraînement des actionneurs nécessaires à leur accouplement aux
éléments entraînés;
— les valeurs de référence du couple et de la poussée pour les brides ayant les dimensions spécifiées dans
le présent document.
2 Références normatives
Les documents suivants sont cités dans le texte de sorte qu’ils constituent, pour tout ou partie de leur
contenu, des exigences du présent document. Pour les références datées, seule l’édition citée s’applique. Pour
les références non datées, la dernière édition du document de référence s'applique (y compris les éventuels
amendements).
ISO 273, Éléments de fixation — Trous de passage pour vis
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions suivants s’appliquent.
L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en normalisation,
consultables aux adresses suivantes:
— ISO Online browsing platform: disponible à l’adresse https:// www .iso .org/ obp
— IEC Electropedia: disponible à l’adresse https:// www .electropedia .org/
3.1
actionneur
dispositif d'entraînement prévu pour être raccordé à un appareil de robinetterie industrielle d'usage général
afin d’assurer le fonctionnement de l’appareil de robinetterie
Note 1 à l'article: Le dispositif est conçu pour fonctionner en utilisant une énergie motrice qui peut être d'origine
électrique, pneumatique, hydraulique, manuelle, etc., ou une combinaison de celles-ci. Le mouvement est limité par la
course, le couple (3.4) ou la poussée (3.5) ou une combinaison des deux.
3.2
actionneur multitour
actionneur (3.1) qui transmet le couple (3.4) à l'appareil de robinetterie, pendant au moins une rotation d’un
tour, et qui peut être capable de supporter la poussée (3.5)
Note 1 à l'article: Un actionneur peut être une combinaison d'un actionneur multitours et d'un réducteur multitours.
3.3
actionneur linéaire
actionneur (3.1) qui transmet la poussée (3.5) à l'appareil de robinetterie pour une course linéaire définie
Note 1 à l'article: Un actionneur peut être une combinaison d'un actionneur multitours (3.2) et d'un réducteur linéaire.
3.4
couple
moment de rotation transmis par les brides de raccordement et les accouplements
Note 1 à l'article: Le couple est exprimé en newtons-mètres (N·m).
3.5
poussée
effort axial transmis par les brides de raccordement et les accouplements
Note 1 à l'article: La poussée est exprimée en kilonewtons (kN).
4 Couples maximaux et poussées maximales
Le couple et la poussée doivent être conformes aux valeurs listées dans le Tableau 1 qui correspondent aux
couples maximaux et aux poussées maximales qui peuvent être transmis simultanément par les brides de
raccordement et par les accouplements. Ils sont basés sur des critères spécifiques.
Tableau 1 — Valeurs maximales des couples et poussées
Couple Poussée
Type de bride
[N·m] [kN]
F05 20 10
F07 40 20
F10 100 40
F12 250 70
F14 400 100
F16 700 150
F25 1 200 200
F30 2 500 325
F35 5 000 700
F40 10 000 1 100
F48 20 000 2 000
F60 40 000 4 000
Les valeurs spécifiées dans le Tableau 1 ont été définies sur la base de boulons sollicités en traction à une
contrainte de 290 MPa et d'un coefficient de frottement de 0,2 entre l'interface d'accouplement. Toutes les
variations de ces paramètres définis entraînent des variations des valeurs de couples transmissibles ou de
poussées transmissibles ou de combinaison des deux. Voir l’Annexe A pour une explication de la méthode
de calcul.
Il convient que la sélection de la taille des brides pour des applications particulières prenne en compte
la combinaison additionnelle des couples et de la poussée qui peut être générée à la tige de l’appareil de
robinetterie en raison de la taille, des facteurs de sécurité, de l'inertie ou d'autres facteurs similaires. En
particulier, le couple et la poussée générés au couple et à la poussée maximum de sortie de l'actionneur
sélectionné doivent être calculés et considérés lors du choix de la bride, ainsi que la capacité de l'appareil de
robinetterie et de l'actionneur à résister à de tels efforts de couple et de poussée.
5 Dimensions des brides
Les brides pour le raccordement des actionneurs doivent être conformes aux dimensions présentées à la
Figure 2 et données dans le Tableau 2. La méthode de raccordement doit se faire au moyen de goujons ou par
boulonnage.
Les trous de passage des goujons/boulons doivent être positionnés hors axes (voir Figure 3 et Tableau 3),
être équidistants et être conformes aux exigences de l’ISO 273.
L’interface sur l’appareil de robinetterie doit avoir un lamage correspondant au diamètre d . Un bossage de
centrage sur l’actionneur est optionnel.
Les valeurs minimales de dimension h données au Tableau 2 s'appliquent aux brides dont les matériaux ont
une limite conventionnelle d'élasticité R ≥ 200 MPa. Les valeurs minimales de dimension h appliquées aux
e 2
brides dont les matériaux ont une limite conventionnelle d'élasticité R ≤ 200 MPa doivent faire l'objet d'un
e
accord entre le fabricant et l'acheteur. Les valeurs minimales de dimension h doivent être d'au moins 1 × d .
3 4
La dimension d a été calculée pour donner une surface d'appui suffisante aux écrous et aux têtes de boulons
en cas de besoin. Cette surface d'appui est définie par un rayon de dimension (d − d )/2 ayant son origine au
1 3
centre du trou de boulon, et doit être considérée comme un minimum. La forme de la bride de l’appareil de
robinetterie et de l'actionneur, en dehors de ces surfaces d'appui, est laissée au choix du fabricant.
Les dimensions et les matériaux de boulonnerie sont basés sur des boulons sous tension sous une contrainte
maximale de 290 MPa. Sur accord entre le fabricant/fournisseur et l'acheteur, les matériaux de boulonnerie
avec une résistance à la traction différente peuvent être utilisés, sans changement de dimensions, mais avec
une variation potentielle des valeurs de couples et poussées transmissibles.
Figure 2 — Dimensions des brides
Tableau 2 — Dimensions des brides
Dimensions en millimètres
Dimensions Nombre de
goujons ou
Type de
c d
d h h h h h
boulons
bride 1 a b 1 2 3 4 5
d d d d
2 3 4 5
min. max. min. min. min. min.
n
F05 ∅65 ∅35 ∅50 M6 ∅6,6 3 9 6 6 6 4
F07 ∅90 ∅55 ∅70 M8 ∅9 3 12 8 8 8 4
F10 ∅125 ∅70 ∅102 M10 ∅11 3 15 10 10 10 4
F12 ∅150 ∅85 ∅125 M12 ∅13,5 3 18 12 14 12 4
F14 ∅175 ∅100 ∅140 M16 ∅17,5 4 24 16 18 16 4
F16 ∅210 ∅130 ∅165 M20 ∅22 5 30 20 22 20 4
F25 ∅300 ∅200 ∅254 M16 ∅17,5 5 24 16 18 16 8
F30 ∅350 ∅230 ∅298 M20 ∅22 5 30 20 22 20 8
F35 ∅415 ∅260 ∅356 M30 ∅33 5 45 30 30 30 8
F40 ∅475 ∅300 ∅406 M36 ∅39 8 54 36 36 36 8
F48 ∅560 ∅370 ∅483 M36 ∅39 8 54 36 36 36 12
F60 ∅686 ∅470 ∅603 M36 ∅39 8 54 36 36 36 20
a
d doit être fabriqué dans la tolérance de diamètre f8.
b
Trous de passage pour vis d conformément à l'ISO 273 (moyen recommandé).
c
h basé sur l'ISO 4033 – Écrous hauts hexagonaux (style 2).
d
h basé sur 1,0x d .
5 4
Figure 3 — Position des trous de passage des goujons/boulons
Table 3 — Positions des trous
Type de bride α/2
F05 à F16 45°
F25 à F40 22,5 °
F48 15 °
F60 9 °
6 Désignation
Les brides sont désignées par type de bride suivant le Tableau 1.
7 Dimensions des éléments d'entraînement et des éléments entraînés
7.1 Généralités
Les dimensions des éléments d'entraînement et des éléments entraînés doivent être conformes aux
dimensions données dans les Tableaux 4 à 8.
Il convient de considérer la profondeur d'engagement des éléments entraînés de l'appareil de robinetterie
dans l'élément d'entraînement de l'actionneur et l'aire de surface de contact entre les faces de l'élément
d'entraînement de l'actionneur et les faces de l'élément entraîné de l'appareil de robinetterie, pour s'assurer
que les contraintes dues au contact n'excèdent pas la capacité des matériaux des éléments. Dans certains cas
il peut être nécessaire d'utiliser des matériaux avec des propriétés mécaniques supérieures et/ou de réduire
le couple de sortie de l'actionneur.
7.2 Dimensions des assemblages prévus pour la transmission d'un couple et d'une poussée:
Groupe A
Les dimensions des assemblages de groupe A doivent être comme indiquées à la Figure 4 et à la Figure 5 et
données dans le Tableau 4.
Figure 4 — Élément d'entraînement, groupe A
a) Exemple pour tige b) Exemple pour tige montante c) Exemple pour tige
montante avec arrêt limité non-montante
Figure 5 — Exemples pour tige montante et non-montante — Éléments entraînés, groupe A
Pour la tige montante, la dimension d permet le dégagement de la tige montante et non-tournante et de
n'importe quel élément limitant la course descendante de la tige de l’appareil de robinetterie.
Pour la tige non-montante, la dimension d permet le dégagement des éléments de fixation de la tige et
d’entraînement en poussée des tiges non-montantes et tournantes.
Tableau 4 — Dimensions des éléments entraînés du groupe A
Dimensions en millimètres
a a
Type de bride d min. d max. l min. h max.
6 6 1 3
F05 ∅18 ∅22 20 40
F07 ∅20 ∅26 25 60
F10 ∅28 ∅40 40 80
F12 ∅32 ∅48 48 95
F14 ∅36 ∅55 55 110
F16 ∅44 ∅75 70 135
F25 ∅60 ∅85 90 150
F30 ∅80 ∅100 110 175
F35 ∅100 ∅150 150 250
F40 ∅120 ∅175 180 325
F48 ∅120 ∅175 180 350
F60 ∅120 ∅180 180 400
a
L'élément d'entraînement est capable de recevoir un diamètre inférieur
ou égal aux valeurs de d min. présentées à la Figure 4. L’élément d’entraî-
nement peut accepter les diamètres plus grands jusqu'à et y compris les
valeurs de d max.
7.3 Dimensions des assemblages capables de transmettre un couple seulement: Groupe B
Les dimensions des assemblages de groupe B doivent être comme indiquées aux Figure 6 a) or Figure 6 b)
and Figure 7 a) or Figure 7 b) et données dans le Tableau 5. Les dimensions des clavettes et des clavetages
doivent être conformes à celles données en Annexe B ou n'importe quelle norme nationale.
Le groupe B est divisé en quatre sous-groupes, pour les actionneurs avec éléments entraînés à trou
traversant ou borgne, où le diamètre d de l'entrainement de sortie est défini comme suit:
— éléments entraînés à trou traversant [Figure 6 a)]:
— Type B1: d = d H9;
— Type B2: d ≤ d ;
— éléments entraînés à trou borgne [Figure 6 b)]:
— Type B3: d = d10 H9;
— Type B4: d ≤ d max.
a) Trou traversant b) Trou borgne
Légende
1 bride
Figure 6 — Éléments d'entraîne
...
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