SIST EN ISO 4064-4:2025
(Main)Water meters for cold potable water and hot water - Part 4: Non-metrological requirements not covered in ISO 4064-1 (ISO 4064-4:2024)
Water meters for cold potable water and hot water - Part 4: Non-metrological requirements not covered in ISO 4064-1 (ISO 4064-4:2024)
ISO 4064-4:2014 applies to water meters used to meter the volume of cold potable water and hot water flowing through a fully charged, closed conduit. These water meters incorporate devices which indicate the integrated volume.
ISO 4064-4:2014 specifies technical characteristics and pressure loss requirements for meters for cold potable water and hot water. It applies to water meters which can withstand: a) a maximum admissible working pressure (MAP) equal to at least 1 MPa [0,6 MPa for meters for use with pipe nominal diameters (DNs) ≥500 mm]; b) a maximum admissible temperature (MAT) for cold potable water meters of 30 °C; c) a MAT for hot water meters up to 180 °C, depending on class.
In addition to meters based on mechanical principles, ISO 4064-4:2014 also applies to water meters based on electrical or electronic principles, and to water meters based on mechanical principles incorporating electronic devices, used to meter the volume flow of hot water and cold potable water. It also applies to electronic ancillary devices. As a rule ancillary devices are optional. However, national or international regulations may make some ancillary devices mandatory in relation to the utilization of the water meter.
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 4: Nichtmetrologische Anforderungen, die nicht Gegenstand von ISO 4064-1 sind (ISO 4064-4:2024)
Dieser Teil von ISO 4064 gilt für Wasserzähler zur Volumenmessung von kaltem Trinkwasser und heißem Wasser, das durch eine vollständig gefüllte, geschlossene Leitung fließt. Diese Wasserzähler sind mit Einrichtungen versehen, die das kumulierte Volumen anzeigen.
Dieser Teil von ISO 4064 legt technische Eigenschaften und Anforderungen für den Druckverlust für Wasserzähler für kaltes Trinkwasser und heißes Wasser fest. Er gilt für Wasserzähler,
a) die dem größten zulässigen Druck (MAP) von mindestens 1 MPa [0,6 MPa bei Zählern für Rohre mit Nenndurchmessern (DN) ≥ 500 mm],
b) die der höchsten zulässigen Temperatur (MAT) von 30 °C für Wasserzähler für kaltes Trinkwasser,
c) die der höchsten zulässigen Temperatur (MAT), in Abhängigkeit von der jeweiligen Klasse, von bis zu 180 °C für Wasserzähler für heißes Wasser widerstehen können.
Zusätzlich zu den auf mechanischen Funktionsprinzipien beruhenden Wasserzählern gilt der vorliegende Teil der ISO 4064 ebenfalls für Wasserzähler, die auf elektrischen oder elektronischen Funktionsprinzipien beruhen und für Wasserzähler nach mechanischen Funktionsprinzipien mit elektronischen Einrichtungen, die zur Messung des Volumendurchflusses von heißem Wasser und von kaltem Trinkwasser dienen. Er gilt außerdem für elektronische Zusatzeinrichtungen. Zusatzeinrichtungen sind grundsätzlich optional. Jedoch können in nationalen oder internationalen Vorschriften einige Zusatzeinrichtungen hinsichtlich der Verwendung von Wasserzählern verbindlich vorgeschrieben sein.
Compteurs d'eau potable froide et d'eau chaude - Partie 4: Exigences non métrologiques non couvertes par l'ISO 4064-1 (ISO 4064-4:2024)
L'ISO 4064-4:2013 s'applique aux compteurs d'eau utilisés pour mesurer le volume d'eau potable froide et d'eau chaude s'écoulant dans une conduite fermée et à pleine charge. Ces compteurs d'eau comportent des dispositifs indiquant le volume compté.
L'ISO 4064-4:2013 spécifie les paramètres techniques et les exigences de perte de pression s'appliquant aux compteurs d'eau potable froide et d'eau chaude. Elle s'applique aux compteurs d'eau pouvant résister à: a) une pression de service maximale admissible (PMA) égale à au moins 1 MPa [0,6 MPa pour les compteurs équipant des conduites de diamètre nominal (DN) ≥ 500 mm]; b) à une température maximale admissible (TMA) allant de 30 ºC, pour les compteurs d'eau potable froide; c) jusqu'à 180 ºC pour les compteurs d'eau chaude, selon la classe.
En plus des compteurs dont le fonctionnement est basé sur des principes mécaniques, l'ISO 4064-4:2013 s'applique aussi aux compteurs d'eau dont le fonctionnement est basé sur un principe électrique ou électronique, ainsi qu'aux compteurs d'eau à fonctionnement mécanique incluant des dispositifs électroniques utilisés pour mesurer le volume débité d'eau chaude et d'eau potable froide. Elle s'applique également aux dispositifs électroniques auxiliaires. Généralement, les dispositifs auxiliaires sont facultatifs. Cependant, des réglementations nationales ou internationales peuvent rendre certains dispositifs auxiliaires obligatoires selon l'utilisation du compteur d'eau.
Vodomeri za merjenje hladne pitne vode in vroče vode - 4. del: Nemetrološke zahteve, ki niso zajete v ISO 4064-1 (ISO 4064-4:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2025
Vodomeri za merjenje hladne pitne vode in vroče vode - 4. del: Nemetrološke
zahteve, ki niso zajete v ISO 4064-1 (ISO 4064-4:2024)
Water meters for cold potable water and hot water - Part 4: Non-metrological
requirements not covered in ISO 4064-1 (ISO 4064-4:2024)
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 4:
Nichtmetrologische Anforderungen, die nicht Gegenstand von ISO 4064-1 sind (ISO
4064-4:2024)
Compteurs d'eau potable froide et d'eau chaude - Partie 4: Exigences non métrologiques
non couvertes par l'ISO 4064-1 (ISO 4064-4:2024)
Ta slovenski standard je istoveten z: EN ISO 4064-4:2025
ICS:
17.120.10 Pretok v zaprtih vodih Flow in closed conduits
91.140.60 Sistemi za oskrbo z vodo Water supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 4064-4
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2025
EUROPÄISCHE NORM
ICS 91.140.60 Supersedes EN ISO 4064-4:2014
English Version
Water meters for cold potable water and hot water - Part
4: Non-metrological requirements not covered in ISO
4064-1 (ISO 4064-4:2024)
Compteurs d'eau potable froide et d'eau chaude - Wasserzähler zum Messen von kaltem Trinkwasser
Partie 4: Exigences non métrologiques non couvertes und heißem Wasser - Teil 4: Nichtmetrologische
par l'ISO 4064-1 (ISO 4064-4:2024) Anforderungen, die nicht Gegenstand von ISO 4064-1
sind (ISO 4064-4:2024)
This European Standard was approved by CEN on 2 February 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4064-4:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4064-4:2025) has been prepared by Technical Committee ISO/TC 30
"Measurement of fluid flow in closed conduits" in collaboration with Technical Committee CEN/TC 92
“Water meters” the secretariat of which is held by SNV.
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 July 2025, and conflicting national standards shall be
withdrawn at the latest by July 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 ISO 4064-4:2014.
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 4064-4:2024 has been approved by CEN as EN ISO 4064-4:2025 without any
modification.
International
Standard
ISO 4064-4
Second edition
Water meters for cold potable water
2024-12
and hot water —
Part 4:
Non-metrological requirements not
covered in ISO 4064-1
Compteurs d'eau potable froide et d'eau chaude —
Partie 4: Exigences non métrologiques non couvertes par
l'ISO 4064-1
Reference number
ISO 4064-4:2024(en) © ISO 2024
ISO 4064-4:2024(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 4064-4:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Technical characteristics . 2
4.1 In-line meters . .2
4.1.1 Meter size and overall dimensions .2
4.1.2 Threaded connection .2
4.1.3 Flanged connection .2
4.1.4 Combination meter connection .3
4.2 Concentric and cartridge meters and exchangeable metrological modules .4
4.2.1 Meter size and overall dimensions .4
4.2.2 Design of the meter manifold connection .4
4.2.3 Dimensions of concentric and cartridge meters .4
4.2.4 Dimensions of exchangeable metrological modules .5
Annex A (informative) Concentric water meter manifold .11
Annex B (informative) Connection interfaces — Solutions for cartridge meters . 14
Annex C (informative) Examples of adaptors and converters .26
Bibliography .28
iii
ISO 4064-4:2024(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 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 30, Measurement of fluid flow in closed
conduits, Subcommittee SC 7, Volume methods including water meters and OIML Technical Subcommittee
TC 8/SC 5, Water meters, in collaboration with the European Committee for Standardization (CEN) Technical
Committee CEN/TC 92, Water meters, in accordance with the Agreement on technical cooperation between
ISO and CEN (Vienna Agreement).
This second edition of ISO 4064-4 cancels and replaces the first edition (ISO 4064-4:2014), which has been
technically revised.
The main changes are as follows:
— editorial and technical changes were done throughout the document.
A list of all parts in the ISO 4064 series can be found on the ISO website.
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 4064-4:2024(en)
Water meters for cold potable water and hot water —
Part 4:
Non-metrological requirements not covered in ISO 4064-1
1 Scope
This document applies to water meters used to meter the volume of cold potable water and hot water
flowing through a fully charged, closed conduit. These water meters incorporate devices which indicate the
integrated volume.
This document specifies technical characteristics and pressure loss requirements for meters for cold potable
water and hot water. It applies to water meters which can withstand:
1)
a) a maximum admissible pressure (MAP) equal to at least 1 MPa [0,6 MPa for meters for use with pipe
nominal diameters (DNs) ≥500 mm];
b) a maximum admissible temperature (MAT) for cold potable water meters of 30 °C;
c) a MAT for hot water meters of up to 180 °C, depending on class.
In addition to meters based on mechanical principles, this document also applies to water meters based
on electrical or electronic principles, and to water meters based on mechanical principles incorporating
electronic devices, used to meter the volume flow of hot water and cold potable water. It also applies to
electronic ancillary devices. As a rule ancillary devices are optional. However, national or international
regulations may make some ancillary devices mandatory in relation to the utilization of the water meter.
2 Normative references
The following documents are referred to in the text in such a way that some or all
...
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