ISO 4064-5-2025 饮用冷水和热水水表—第5部分：安装要求

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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

International

Standard

ISO 4064-5

Second edition

2025-09

Reference number

ISO 4064-5:2025(en) © ISO 2025

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ISO 4064-5:2025(en)











CP 401 • Ch. de Blandonnet 8

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www.iso.org



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ISO 4064-5:2025(en)

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

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

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

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

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

 .................................................................................................................................................................................2

  ................................................................................................................2

  ..................................................................................................................................3

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

  ........................................................................................................................................................................................................................ 3

  ..................................................................................................................................................................................3

 ..........................................................................................................................................................................3

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

  ...................................................................................................................................................................................4

  .........................................................................................................................................................................4

  ................................................................................................................................................5

  .............................................................................................................................................................................. 5

  ..................................................................................................................................5

  ...........................................................................................................................................................................5

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

 .................................................................................................................................................................................5

  ..................................................................................................................................................6

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

 .................................................................................................................................................................................7

  ..................................................................................................................................7

  ................................................................................................................................................................................ 7

8.3.1 Frost ............................................................................................................................................................................................................7

  ........................................................................................................................................................................ 7

  .............................................................................................................................................................................8

  .............................................................................................................................................................................8

  .............................................................................................8

  ................................................................................................................................................................9

  .....................................................................................................................................................................................................9

8.4.2 Manhole installation .................................................................................................................................................................10

  .........................................................................10

  ..............................................................10

  ........................................................................10

  ...........................................................................................................................................................10

  ........................................................................................................................................................ 10

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

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标签： #ISO #安装

摘要：

本规范文档《ISO 4064-5-2025 饮用冷水和热水水表—第5部分：安装要求》是国际标准化组织发布的最新版本，详细规定了饮用冷水和热水水表在安装过程中的技术条件、环境要求、管道布局及维护间隙等关键准则。该标准旨在确保水表在不同工况下的计量准确性与长期运行稳定性，降低因安装不当导致的误差、水锤或设备损坏风险。文档适用于水表制造商、水务公司、安装工程师及工程验收人员，帮助其遵循统一规范提升供水系统管理效率，同时符合节能与环保要求。最新2025版本已更新材料兼容性要求与防冻措施，是水表安装领域不可或缺的权威指导文件。

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ISO 4064-5-2025 饮用冷水和热水水表—第5部分：安装要求

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