ISO 4126-9:2008 Preview

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

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.


General information

  • Status :  Published
    Publication date : 2008-04
  • Edition : 1
    Number of pages : 31
  • :
    ISO/TC 185
    Safety devices for protection against excessive pressure
  • 13.240
    Protection against excessive pressure

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