Water meters intended for the metering of cold potable water and hot water - Part 5: Installation requirements (ISO 4064-5:2014)

This part of ISO 4064 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 part of ISO 4064 specifies criteria for the selection of single, combination and concentric water
meters, associated fittings, installation, special requirements for meters, and the first operation of new
or repaired meters to ensure accurate constant measurement and reliable reading of the meter.
In addition to meters based on mechanical principles, this part of ISO 4064 also applies to water
meters based on electrical or electronic principles, and to water meters based on mechanical principles
incorporating electronic devices, used to measure the volume of cold potable water and hot water. It also
applies to electronic ancillary devices. Ancillary devices are optional. However, national or international
regulations may make some ancillary devices mandatory in relation to the utilization of the water meter.
The recommendations of this part of ISO 4064 apply to water meters, irrespective of technology, defined
as integrating measuring instruments continuously determining the volume of water flowing through
them.
NOTE Any national regulations apply in the country of use.

Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 5: Einbaubedingungen (ISO 4064-5:2014)

Der vorliegende Teil der ISO 4064 gilt für Wasserzähler zur Volumenmessung von kaltem Trinkwasser und
heißem Wasser, das durch eine vollständig gefüllte, geschlossene Leitung fließt. Diese Wasserzähler müssen
mit Einrichtungen versehen sein, die das summierte Volumen anzeigen.
Der vorliegende Teil der ISO 4064 legt Kriterien für die Auswahl von einzelnen Wasserzählern, Verbundzählern
und konzentrischen Wasserzählern, zugehörigen Armaturen, den Einbau, besondere Anforderungen
an Zähler und die Inbetriebnahme von neuen oder reparierten Zählern fest, um eine genaue konstante
Messung und zuverlässige Ablesung der Zähler zu gewährleisten.
Der vorliegende Teil der ISO 4064 gilt ebenfalls für Wasserzähler nach elektrischem oder elektronischem
Funktionsprinzip und für Wasserzähler nach mechanischem Funktionsprinzip mit elektronischen Einrichtungen,
die zur Messung des Durchflussvolumens von heißem Wasser und von kaltem Trinkwasser dienen.
Er gilt außerdem für elektronische Zusatzeinrichtungen. Zusatzeinrichtungen sind grundsätzlich optional.
ANMERKUNG In nationalen oder internationalen Vorschriften können jedoch einige Zusatzeinrichtungen hinsichtlich
der Verwendung von Wasserzählern verbindlich vorgeschrieben sein.
Die Empfehlungen dieses Teils der ISO 4064 gelten für Wasserzähler unabhängig von der Technologie, die
als eingebaute Messgeräte fortlaufend das Volumen des sie durchlaufenden Wassers bestimmen.
ANMERKUNG Es wird auf die Tatsache hingewiesen, dass im Anwendungsland nationale Gesetzgebung gelten kann,
die Vorrang vor den Vorschriften der vorliegenden Norm hat.

Compteurs d'eau destinés au mesurage de l'eau potable froide et chaude - Partie 5: Exigences d'installation (ISO 4064-5:2014)

L'ISO 4064-5:2013 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 4064-5:2013 spécifie des critères pour le choix de compteurs d'eau individuels, combinés et concentriques, les accessoires associés, l'installation ainsi que des exigences spéciales pour la première mise en service de compteurs neufs ou réparés pour garantir un mesurage d'une exactitude constante et une lecture fiable du compteur.
En plus des compteurs dont le fonctionnement est basé sur des principes mécaniques, l'ISO 4064-5:2013 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. Les dispositifs auxiliaires sont facultatifs. Cependant, des réglementations nationales ou internationales peuvent rendre certains dispositifs auxiliaires obligatoires selon l'utilisation du compteur d'eau.
Les recommandations de l'ISO 4064-5:2013 s'appliquent aux compteurs d'eau, indépendamment de leur technologie, définis en tant qu'instruments de mesure totalisateurs de débit, déterminant de manière continue le volume de débit d'eau les traversant.

Vodomeri za merjenje hladne pitne vode in vroče vode - 5. del: Zahteve za vgradnjo (ISO 4064-5:2014)

Ta del standarda ISO 4064 se uporablja za vodomere za merjenje pretoka hladne pitne vode in vroče vode, ki teče skozi zaprto cev s polnim pretokom. Ti vodomeri imajo vgrajene naprave, ki prikazujejo vgrajen pretok.
Ta del standarda ISO 4064 določa merila za izbor enojnih, kombiniranih in koncentričnih vodomerov, povezane fitinge, namestitev, posebne zahteve za vodomere in prvo delovanje novih ali popravljenih vodomerov, da se zagotovi točne stalno merjenje in zanesljivo odčitavanje vodomera. Poleg mehansko delujočih vodomerov se ta del standarda ISO 4064 uporablja za električno ali elektronsko delujoče vodomere in vodomere, delujoče na podlagi mehanskih načel z vgrajenimi elektronskimi napravami, ki se uporabljajo za merjenje pretoka hladne pitne vode in vroče vode. Uporablja se tudi za elektronske pomožne naprave. Pomožne naprave so izbirne. Kljub temu lahko nacionalni ali mednarodni predpisi določajo obvezno uporabo nekaterih pomožnih naprav v povezavi z uporabo vodomerov. Priporočila iz tega dela standarda ISO 4064 veljajo za vodomere, ki so opredeljeni kot integrirani merilni instrumenti za konstantno določanje pretoka vode, ki teče skoznje, ne glede na tehnologijo.
OPOMBA Veljajo vsi nacionalni predpisi v državi uporabe

General Information

Status
Withdrawn
Publication Date
19-Feb-2015
Withdrawal Date
10-Jul-2017
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
10-Jul-2017
Due Date
02-Aug-2017
Completion Date
11-Jul-2017

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SLOVENSKI STANDARD
SIST EN ISO 4064-5:2015
01-marec-2015
1DGRPHãþD
SIST EN 14154-1:2005+A1:2007
SIST EN 14154-1:2005+A2:2011
SIST EN 14154-2:2005+A1:2007
SIST EN 14154-2:2005+A2:2011
SIST EN 14154-3:2005+A1:2007
SIST EN 14154-3:2005+A2:2011
9RGRPHUL]DPHUMHQMHKODGQHSLWQHYRGHLQYURþHYRGHGHO=DKWHYH]D
YJUDGQMR ,62

Water meters intended for the metering of cold potable water and hot water - Part 5:

Installation requirements (ISO 4064-5:2014)
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 5:
Einbaubedingungen (ISO 4064-5:2014)

Compteurs d'eau destinés au mesurage de l'eau potable froide et chaude - Partie 5:

Exigences d'installation (ISO 4064-5:2014)
Ta slovenski standard je istoveten z: EN ISO 4064-5:2014
ICS:
17.120.10 Pretok v zaprtih vodih Flow in closed conduits
91.140.60 Sistemi za oskrbo z vodo Water supply systems
SIST EN ISO 4064-5:2015 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 4064-5:2015
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SIST EN ISO 4064-5:2015
EUROPEAN STANDARD
EN ISO 4064-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2014
ICS 91.140.60 Supersedes EN 14154-2:2005+A2:2011
English Version
Water meters for cold potable water and hot water - Part 5:
Installation requirements (ISO 4064-5:2014)

Compteurs d'eau potable froide et d'eau chaude - Partie 5: Wasserzähler zum Messen von kaltem Trinkwasser und

Exigences d'installation (ISO 4064-5:2014) heißem Wasser - Teil 5: Einbaubedingungen (ISO 4064-

5:2014)
This European Standard was approved by CEN on 21 September 2013.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United

Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4064-5:2014 E

worldwide for CEN national Members.
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SIST EN ISO 4064-5:2015
EN ISO 4064-5:2014 (E)
Contents Page

Foreword ..............................................................................................................................................................3

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SIST EN ISO 4064-5:2015
EN ISO 4064-5:2014 (E)
Foreword

This document (EN ISO 4064-5:2014) 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 December 2014, and conflicting national standards shall be withdrawn

at the latest by June 2017.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 14154-2:2005+A2:2011.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,

Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Endorsement notice

The text of ISO 4064-5:2014 has been approved by CEN as EN ISO 4064-5:2014 without any modification.

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SIST EN ISO 4064-5:2015
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SIST EN ISO 4064-5:2015
INTERNATIONAL ISO
STANDARD 4064-5
First edition
2014-06-01
Water meters for cold potable water
and hot water —
Part 5:
Installation requirements
Compteurs d’eau potable froide et d’eau chaude —
Partie 5: Exigences d’installation
Reference number
ISO 4064-5:2014(E)
ISO 2014
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SIST EN ISO 4064-5:2015
ISO 4064-5:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
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SIST EN ISO 4064-5:2015
ISO 4064-5:2014(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Criteria for the selection of water meters .................................................................................................................................. 2

4.1 General considerations .................................................................................................................................................................... 2

4.2 Information to be provided by the manufacturer ..................................................................................................... 2

4.3 Meters operating in parallel or in a group ...................................................................................................................... 2

5 Associated fittings ............................................................................................................................................................................................... 3

5.1 General ........................................................................................................................................................................................................... 3

5.2 Upstream of the meter ..................................................................................................................................................................... 3

5.3 Downstream of the meter .............................................................................................................................................................. 3

6 Installation ................................................................................................................................................................................................................. 4

6.1 General requirements ....................................................................................................................................................................... 4

6.2 Installation requirements .............................................................................................................................................................. 4

6.3 Water quality (suspended particles) ................................................................................................................................... 5

6.4 Electromagnetic meters .................................................................................................................................................................. 5

6.5 Meters operating in parallel or in a group ...................................................................................................................... 5

6.6 Security of operation ......................................................................................................................................................................... 5

7 Hydraulic disturbances ................................................................................................................................................................................. 5

7.1 General considerations .................................................................................................................................................................... 5

7.2 Methods to eliminate disturbances ....................................................................................................................................... 6

8 First operation of new or repaired water meters .............................................................................................................. 7

8.1 General considerations .................................................................................................................................................................... 7

8.2 Meters operating in parallel or in a group ...................................................................................................................... 7

8.3 Protection of the meter .................................................................................................................................................................... 7

8.4 Safety of personnel and users .................................................................................................................................................... 9

8.5 Comfort of personnel — Access to the water meter and fittings .............................................................10

Bibliography .............................................................................................................................................................................................................................12

© ISO 2014 – All rights reserved iii
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SIST EN ISO 4064-5:2015
ISO 4064-5:2014(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2, www.iso.org/directives.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any

patent rights identified during the development of the document will be in the Introduction and/or on

the ISO list of patent declarations received, www.iso.org/patents.

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

The committee responsible for this document is ISO/TC 30, Measurement of fluid flow in closed conduits,

Subcommittee SC 7, Volume methods including water meters. It supersedes ISO 4064-2:2005, which has

been technically revised.

ISO 4064 consists of the following parts, under the general title Water meters for cold potable water and

hot water:
— Part 1: Metrological and technical requirements
— Part 2: Test methods
— Part 3: Test report format
— Part 4: Non-metrological requirements not covered in ISO 4064-1
— Part 5: Installation requirements
iv © ISO 2014 – All rights reserved
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SIST EN ISO 4064-5:2015
INTERNATIONAL STANDARD ISO 4064-5:2014(E)
Water meters for cold potable water and hot water —
Part 5:
Installation requirements
1 Scope

This part of ISO 4064 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 part of ISO 4064 specifies criteria for the selection of single, combination and concentric water

meters, associated fittings, installation, special requirements for meters, and the first operation of new

or repaired meters to ensure accurate constant measurement and reliable reading of the meter.

In addition to meters based on mechanical principles, this part of ISO 4064 also applies to water

meters based on electrical or electronic principles, and to water meters based on mechanical principles

incorporating electronic devices, used to measure the volume of cold potable water and hot water. It also

applies to electronic ancillary devices. Ancillary devices are optional. However, national or international

regulations may make some ancillary devices mandatory in relation to the utilization of the water meter.

The recommendations of this part of ISO 4064 apply to water meters, irrespective of technology, defined

as integrating measuring instruments continuously determining the volume of water flowing through

them.
NOTE Any national regulations apply in the country of use.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 4064-1:2014|OIML R 49-1:2013, Water meters for cold potable water and hot water — Part 1:

Metrological and technical requirements

ISO 6817, Measurement of conductive liquid flow in closed conduits — Method using electromagnetic

flowmeters
3 Terms and definitions

For the purposes of this part of ISO 4064, the definitions given in ISO 4064-1|OIML R 49-1 and the

following apply.
3.1
parallel operation

operation of two or more meters grouped together and connected to a common source

and a common delivery
3.2
multiple meter operation

operation of several meters grouped together where their inlets are connected to a common source, or

their outlets to a common delivery, but not both at the same time
© ISO 2014 – All rights reserved 1
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SIST EN ISO 4064-5:2015
ISO 4064-5:2014(E)
3.3
adaptor

additional mechanical device fitted into a connection interface on location in order

to combine an unmodified cartridge meter of one geometry with a connection interface of another

geometry
3.4
converter

connection interface consisting of several parts produced as a complete unit prior to

installation into the supply system

Note 1 to entry: No assembly work is to be done on location other than the installation of the complete interface.

Conversion is related to either change of flow pattern, change of flow direction or extension of seat depth.

4 Criteria for the selection of water meters
4.1 General considerations

The type, metrological characteristics, and sizes of water meters should be determined according to the

operating conditions of the installation and the environmental class(es) demanded, taking into account,

particularly, the following:
— the available supply pressure;

— the physical and chemical characteristics of the water, including water temperature and water

quality (suspended particles);
— the acceptable pressure loss across the meter;

— the expected flow rates: the flow rates Q and Q of the meter (as defined in ISO 4064-1:2014|OIML R 49-

1 3

1:2013, Clause 3) shall be compatible with the expected flow rate conditions of the installations,

including the water flow direction(s);

— the suitability of the meter type for the intended mechanical, climatic, electrical, and hydraulic

conditions, including ambient relative humidity, vibrations, electrostatic discharges, continuous

magnetic field, and electromagnetic disturbances;
— the available space and pipe work to install the meter and fittings;
— the possibility of deposition of substances from solution within the meter;
— the sustainability of the power supply of the water meter (where applicable).

When using combination meters, changeover flow rates shall be different from normal operating flow

rates.
4.2 Information to be provided by the manufacturer

Sufficient information shall be provided to enable customers to choose and install a meter that conforms

to particular metrological characteristics.

The influence factors that affect the indicating error of the individual design should be stated. For each

influence factor, the relevant rated operating conditions applicable to the meter should be stated.

4.3 Meters operating in parallel or in a group

4.3.1 For meters operating in parallel, means shall be provided so that the unserviceability of one or

more meters within a group shall not cause the remaining meters to operate at a flow rate in excess of the

limit of operation of each individual meter.
2 © ISO 2014 – All rights reserved
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SIST EN ISO 4064-5:2015
ISO 4064-5:2014(E)

4.3.2 To ensure that water meters of different types operate satisfactorily in parallel, the individual

characteristics of meters operating in parallel shall be compatible, e.g. by grouping them according to

pressure loss, flow rate range and maximum working pressure. However, the installation conditions for

each type shall be respected.

4.3.3 For meters operating in parallel and multiple meter operation, the possibilities of interaction

between one meter or meter type and another to the detriment of their life and accuracy, e.g. pressure

surges and vibration, should be considered.

NOTE Examples of the use of meters operating in parallel and multiple meter operation are:

— meters operating in parallel where the installation of one large meter to meet the maximum water demand

or to cover the required flow rate range is impractical;

— meters installed in parallel where ‘stand by’ meters are necessary to ensure continuity of delivery and flow

measurement in the case of filter blockage or water meter breakdown;

— meters grouped in multiple operation for ease of access, service and reading, where it is necessary to split a

water supply into a number of branches, as for instance in a block of flats, or where it is necessary to unite a

number of metered tributary flows into a common main, as in a water treatment plant.

5 Associated fittings
5.1 General

The water meter installation shall include the associated fittings listed in 5.2 and 5.3 as applicable.

5.2 Upstream of the meter

5.2.1 A stopcock or valve, optionally with the direction of the valve operation indicated.

5.2.2 A flow straightening device and/or a length of straight pipe fitted between the valve and the

meter.
5.2.3 A strainer fitted between the stop valve and the meter.

5.2.4 A means of sealing the connection of the water meter to the water supply line in order to detect

any unauthorized removal of the water meter.
5.3 Downstream of the meter
5.3
...

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