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ISO 4064-5:2025

Water meters for cold potable water and hot water — Part 5: Installation requirements

Edition date: 2025-09-17
In Force
Available languages: French, English
Summary:

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 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 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 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 document apply to water meters, irrespective of technology, defined as integrating measuring instruments determining the volume of water flowing through them.

NOTE            Any national regulations apply in the country of use.



Le présent document 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.

Le présent document 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 d’eau dont le fonctionnement est basé sur des principes mécaniques, le présent document s’applique aux dispositifs dont le fonctionnement est basé sur un principe électrique ou électronique, ainsi qu’à un fonctionnement mécanique incluant des dispositifs électroniques utilisés pour mesurer le volume débité d’eau potable froide et d’eau chaude. Il s’applique également aux dispositifs électroniques auxiliaires. Les dispositifs auxiliaires sont facultatifs. Il est cependant admis que des réglementations nationales ou régionales rendent certains dispositifs auxiliaires obligatoires selon l’utilisation du compteur d’eau.

Les recommandations du présent document 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.

NOTE            Toute réglementation nationale est applicable dans le pays d’utilisation.
ICS: 91.140.60-Water supply systems
CTN: ISO/TC 30/SC 7 - 47620

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