EN ISO 5640:2024

SLOVENSKI STANDARD
01-maj-2025
Nadomešča:
SIST EN 15081:2007
Industrijski ventili - Priključna oprema za pogone ventilov z delnim zasukom
(aktuatorjem) (ISO 5640:2024)
Industrial valves - Mounting kits for part-turn valve actuator attachment (ISO 5640:2024)
Industriearmaturen - Montagesätze für Anschlüsse von Schwenkantrieben an Armaturen
(ISO 5640:2024)
Robinetterie industrielle - Kits de montage de raccordement des actionneurs à fraction
de tour (ISO 5640:2024)
Ta slovenski standard je istoveten z: EN ISO 5640:2024
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 5640
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2024
EUROPÄISCHE NORM
ICS 23.060.01 Supersedes EN 15081:2007
English Version
Industrial valves - Mounting kits for part-turn valve
actuator attachment (ISO 5640:2024)
Robinetterie industrielle - Kits de montage de Industriearmaturen - Montagesätze für Anschlüsse von
raccordement des actionneurs à fraction de tour (ISO Schwenkantrieben an Armaturen (ISO 5640:2024)
5640:2024)
This European Standard was approved by CEN on 11 November 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5640:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 5640:2024 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 5640:2024 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 May 2025, and conflicting national standards shall be
withdrawn at the latest by May 2025.
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 15081:2007.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 5640:2024 has been approved by CEN as EN ISO 5640:2024 without any modification.

International
Standard
ISO 5640
First edition
Industrial valves — Mounting
2024-01
kits for part-turn valve actuator
attachment
Robinetterie industrielle — Kits de montage de raccordement des
actionneurs à fraction de tour
Reference number
ISO 5640:2024(en) © ISO 2024
ISO 5640:2024(en)
© ISO 2024
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 5640:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Design requirements . 3
4.1 General .3
4.2 Materials .3
4.3 Design temperature .3
4.4 Environmental corrosion protection .3
4.5 Mounting kit . .4
4.5.1 Stiffness .4
4.5.2 Intermediate support style .4
4.6 Bolting .5
4.7 Coupling .6
4.8 Designation .6
4.9 Position indicator .6
4.10 Buried service .6
4.11 Safety requirement .6
4.12 Orientation .6
4.13 Additional means for support of the actuator .7
4.14 Valve/actuator package maintenance.7
5 Dimensions . 7
5.1 Bracket .7
5.2 Coupling design .9
5.2.1 General .9
5.2.2 Drive by key(s) .9
5.2.3 Drive by square head .9
5.2.4 Drive by flat head .9
5.2.5 Drive by improved flat head .9
5.2.6 Drive by involute spline .9
5.2.7 Other types of drive connections .9
5.3 Spools and adapter flanges .9
6 Marking . .10
6.1 General .10
6.2 Mandatory information .10
6.3 Optional information .10
7 Documentation . 10
7.1 Language .10
7.2 Product documentation .10
Annex A (normative) Coupling clearance .11
Annex B (informative) Proposed shaft details for ball and butterfly valves .13
Bibliography .16

iii
ISO 5640:2024(en)
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).
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.
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
International Standard ISO 5640:2024(en)
Industrial valves — Mounting kits for part-turn valve actuator
attachment
1 Scope
This document provides requirements for metallic mounting kits for part-turn valves and actuator
attachments.
It includes all components transmitting torques from actuators to valves with a maximum flange torque up
to 16 000 Nm (up to F30 flange type).
It applies to mounting kits for part-turn valves and actuators with integral attachment flanges and drive
components as described in ISO 5211 (see Figure 1), when direct mounting of the actuator on valve is not
practical. Figure 1 illustrates the two different types of mounting kits in the scope of this document.
a) Direct interface with mounting kit b) Direct interface with mounting kit (when com-
bination of a multi-turn actuator and a gearbox)
Key
1 part-turn actuator 5 gearbox
2 interface (see ISO 5211) 6 interface (see ISO 5210)
3 valve 7 multi-turn actuator
4 mounting kit
Figure 1 — Mounting kit between part-turn actuator and valve
Stacking of mounting kits/intermediate supports is not within the scope of this document.
This document specifies methods for design and environmental corrosion protection.
When a reference is made to this document, all the requirements apply, unless otherwise agreed between
the purchaser and the manufacturer/supplier, prior to order.
In this document, the term "valve" covers valve or shaft extension top-flange, and the term “actuator” covers
part-turn actuator or combination of multi-turn actuator and gearbox.
Control valves are excluded from this document.

ISO 5640:2024(en)
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 5211, Industrial valves — Part-turn actuator attachments
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
mounting kit
group of components comprising an intermediate support (3.2), bolting and optional coupling (3.3)
3.2
intermediate support
mechanical component (bracket, spool, adapter flange) that allows the attachment between a part-turn
valve and actuator or gearbox
Note 1 to entry: For electric actuators refer to ISO 22153.
Note 2 to entry: For gearboxes refer to ISO 22109.
3.3
coupling
driven component that allows torque transmission from an actuator or gearbox driving component to the
valve shaft (3.7)
3.4
coupling clearance
clearance to ensure that there is axial movement between the actuator or gearbox and the valve shaft (3.7)
to avoid thrust being applied between the driving and driven components
Note 1 to entry: See Annex A.
3.5
part-turn actuator
actuator which transmits torque to the valve for a rotation of one revolution or less and does not have to
withstand axial thrust
Note 1 to entry: A part-turn actuator may be a combination of a multi-turn actuator and part-turn gearbox.
3.6
valve top mounting face
feature of the valve body or an additional component which is part of the valve and which allows the
attachment of actuating devices or intermediate support (3.2)
Note 1 to entry: For details on the valve top mounting face refer to ISO 5211.
3.7
valve shaft
valve stem
part of the valve transmitting the driving torque to the obturator

ISO 5640:2024(en)
3.8
part-turn actuator attachment
attachment interface of the actuator or gearbox which includes:
— parts that attach the part-turn actuator (3.5) or gearbox to the intermediate support (3.2);
— driving component of the part-turn actuator or gearbox necessary to attach it to the coupling (3.3) or
to the driven component of the valve, which may be an integral part or a removable component of the
actuator or gearbox
4 Design requirements
4.1 General
Part-turn actuator attachments shall be in accordance with ISO 5211.
4.2 Materials
Mounting kit materials shall be:
— for intermediate supports, of cast iron (CI), ductile iron (DI), carbon steel (CS), stainless steel (SS), or
when agreed, other material (OT);
— for bolting (environmental corrosion categories according to Table 1):
— categories C2 and C3: stainless steel or a corrosion-protected carbon steel;
— categories C4, C5 and CX: stainless steel;
— other categories: material to be specified by the purchaser.
Special care shall be taken for material selection in the event of environmental critical conditions and to
avoid material combinations that could promote galvanic corrosion.
4.3 Design temperature
The mounting kit shall be designed for operation at a temperature range as a minimum betwe
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