GB/T 778.2-2007
Measurement of water flow in fully charged closed conduits.Meters for cold potable water and hot water.Part 2: Installation requirements (English Version)

Standard No.

GB/T 778.2-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2019-01

Replace By

GB/T 778.5-2018

GB/T 778.2-2018

Latest

GB/T 778.5-2018

GB/T 778.2-2018

Replace

GB/T 778.2-1996

Scope

This part of GB/T 778 specifies the selection and installation of single water meters, multi-type water meters, coaxial water meters and connecting pipe fittings, the special requirements of water meters, and the guidelines for the first use of new water meters or repaired water meters, so as to ensure accurate, stable and reliable measurement of water meters. reading. This part of GB/T 778 is also applicable to water meters based on electrical or electronic principles and based on mechanical principles with electronic devices for measuring the actual volume flow of drinking cold water and hot water. This section also applies to electronic auxiliary devices. The recommendations in this part of GB/T 778 apply to water meters defined as totalizing meters that use any technique to continuously measure the volume of water flowing through them.

GB/T 778.2-2007 Referenced Document

• GB/T 18660 Measurement of conductive liquid flow in closed conduits--Method using electromagnetic flowmeters
• GB/T 778.1-2007 Measurement of water flow in fully charged closed conduits.Meters for cold potable water and hot water.Part 1: Specifications

GB/T 778.2-2007 history

• 2018 GB/T 778.5-2018 Meters for cold potable water and hot water.Part 5: Installation requirements
• 2007 GB/T 778.2-2007 Measurement of water flow in fully charged closed conduits.Meters for cold potable water and hot water.Part 2: Installation requirements
• 1996 GB/T 778.2-1996 Measurement of water flow in closed conduits--Meters for cold potable water--Part 2:Installation requirements

GB/T 778.2-2007 Measurement of water flow in fully charged closed conduits.Meters for cold potable water and hot water.Part 2: Installation requirements was changed to GB/T 778.5-2018 Meters for cold potable water and hot water.Part 5: Installation requirements.

GB/T 778.2-2007 -All Parts