EN ISO 5117:2023

SLOVENSKI STANDARD
01-september-2023
Avtomatični izločevalniki kondenzata - Tehnološko in funkcijsko preskušanje (ISO
5117:2023)
Automatic steam traps - Production and performance characteristic tests (ISO
5117:2023)
Kondensatableiter - Fertigungsprüfung und Prüfung der Funktionsmerkmale (ISO
5117:2023)
Purgeurs automatiques de vapeur d'eau - Essais de production et essais des
caractéristiques de fonctionnement (ISO 5117:2023)
Ta slovenski standard je istoveten z: EN ISO 5117:2023
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 5117
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 23.060.01 Supersedes EN 26948:1991, EN 27841:1991, EN
27842:1991
English Version
Automatic steam traps - Production and performance
characteristic tests (ISO 5117:2023)
Purgeurs automatiques de vapeur d'eau - Essais de Kondensatableiter - Fertigungsprüfung und Prüfung
production et essais des caractéristiques de der Funktionsmerkmale (ISO 5117:2023)
fonctionnement (ISO 5117:2023)
This European Standard was approved by CEN on 2 June 2023.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5117:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 5117:2023) has been prepared by Technical Committee ISO/TC 153 "Valves" in
collaboration with 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 January 2024, and conflicting national standards shall
be withdrawn at the latest by January 2024.
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 26948:1991, EN 27841:1991 and EN 27842:1991.
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 5117:2023 has been approved by CEN as EN ISO 5117:2023 without any modification.

INTERNATIONAL ISO
STANDARD 5117
First edition
2023-06
Automatic steam traps — Production
and performance characteristic tests
Purgeurs automatiques de vapeur d'eau — Essais de production et
essais des caractéristiques de fonctionnement
Reference number
ISO 5117:2023(E)
ISO 5117:2023(E)
© ISO 2023
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 5117:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test methods . 2
4.1 Production test — Shell testing . 2
4.2 Performance characteristic tests . 2
4.2.1 Operational check . 2
4.2.2 Minimum operating pressure . 3
4.2.3 Maximum operating pressure (PMO) . 3
4.2.4 Maximum operating back pressure (PMOB) . 3
4.2.5 Air venting capability . 3
4.2.6 Operating temperature (TO) . 3
4.2.7 Condensate capacity (QH or QC) . 3
4.2.8 Live steam loss . 3
4.2.9 Determination of minimum operating pressure . 3
4.2.10 Determination of maximum operating pressure . 4
4.2.11 Determination of maximum operating back pressure . 4
4.2.12 Determination of air venting capability . 4
4.2.13 Determination of operating temperature . 4
4.2.14 Determination of condensate capacity . 4
4.2.15 Determination of live steam loss . 4
5 Inspection . 4
Annex A (normative) Test methods for the determination of discharge capacity .5
Annex B (normative) Test methods for the determination of steam loss .19
Bibliography .31
iii
ISO 5117:2023(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 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 first edition cancels and replaces ISO 6948:1981, ISO 7841:1988 and ISO 7842:1988, which have
been technically revised.
The main changes are as follows:
— merging of ISO 6948:1981, ISO 7841:1988 and ISO 7842:1988;
— update of the technical content according to state-of-the-art;
— addition of the terminological entry on subcooling (3.2);
— addition of a data sheet for test methods A and B on steam trap discharge capacity in A.3.3 and in
A.4.3;
— addition of a computation formula [Formula (B.4)];
— addition of a data sheet for test methods A and B on steam loss test in B.3.4 and B.4.4.
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
ISO 5117:2023(E)
Introduction
Testing of steam traps provides conformance of product performance to the intended function. This
document addresses the requirements for production testing and performance testing of steam traps.
Production test ensures the shell integrity to the maximum working pressure while the performance
test ensures the functional requirement of steam traps. Performance test should be considered as type
test.
Testing is the most reliable method to validate a product including design, material selection and
manufacturing processes. It may also serve as a guide for
...