International Standard
ISO 4126-5:2013
Safety devices for protection against excessive pressure — Part 5: Controlled safety pressure relief systems (CSPRS)
Reference number
ISO 4126-5:2013
Edition 2
International Standard
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ISO 4126-5:2013
Published (Edition 2, 2013)
This standard was last reviewed and confirmed in 2019. Therefore this version remains current.
This standard has 1 amendment.

ISO 4126-5:2013

ISO 4126-5:2013
CHF 129
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ISO 4126-5:2013 specifies the requirements for controlled safety pressure relief systems (CSPRS) irrespective of the fluid for which they are designed.

It is applicable for main valves having a flow diameter of 4 mm and above which are for use at pressures of 0,1 bar gauge and above. No limitation is placed on temperature.

ISO 4126-5:2013 is a product standard and is not applicable to applications.

General information

  •  : Published
     : 2013-07
    : International Standard under systematic review [90.20]
  •  : 2
     : 20
  • ISO/TC 185
  • RSS updates


Amendments are issued when it is found that new material may need to be added to an existing standardization document. They may also include editorial or technical corrections to be applied to the existing document.

Amendment 1

Edition 2016

ISO 4126-5:2013/Amd 1:2016
CHF 18
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