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ISO 4126-9:2008

Safety devices for protection against excessive pressure — Part 9: Application and installation of safety devices excluding stand-alone bursting disc safety devices

Mar 31, 2008

General information

90.93     Oct 4, 2020

ISO

ISO/TC 185

International Standard

13.240  

English   French  

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Scope

ISO 4126-9:2008 covers the application and installations of safety devices such as safety valves, safety valves and bursting disc safety devices in combination, pilot-operated safety valves and controlled safety pressure-relief systems for the protection of pressure equipment. ISO 4126-6 covers the selection, application and installation of bursting disc safety devices.
ISO 4126-9:2008 describes the normative requirements for applications and installations of safety devices to protect static pressure equipment. The information contained in ISO 4126-9:2008 assumes single-phase flow of the fluid discharged from the safety device. ISO 4126-10 provides guidance specific to two-phase flow conditions.
Equipment connected together in a system by piping of adequate capacity, which is free from potential blockages and does not contain any valve that can isolate any part, can be considered to be a safety system for the application of pressure relief.
ISO 4126-9:2008 does not deal with other safety devices, such as safety related monitoring, control and regulation devices and other limiting devices allowed by some national regulations.

Life cycle

NOW

PUBLISHED
ISO 4126-9:2008
90.93 Standard confirmed
Oct 4, 2020

REVISED BY

ABANDON
ISO/NP 4126-9

ABANDON
ISO/PWI 4126-9

ABANDON
ISO/PWI 4126-9