ISO 4126-4:2013 specifies general requirements for pilot operated safety valves, irrespective of the fluid for which they are designed. In all cases, the operation is carried out by the fluid in the system to be protected.
It is applicable to pilot operated safety valves having a valve flow diameter of 4 mm and above which are for use at set pressures of 0,1 bar gauge and above. No limitation is placed on temperature.
ISO 4126-4:2013 is a product standard and it is not applicable to applications of pilot operated safety valves.
Status: PublishedPublication date: 2013-07
Edition: 2Number of pages: 16
Technical Committee: ISO/TC 185 Safety devices for protection against excessive pressure
- ICS :
- 13.240 Protection against excessive pressure
This standard contributes to the following Sustainable Development Goal:
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ISO 4126-4:2004/Cor 1:2007
A standard is reviewed every 5 years
Stage: 90.93 (Confirmed)
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