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ISO 4126-4:2013

Safety devices for protection against excessive pressure - Part 4: Pilot operated safety valves
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ISO 4126-4:2013

Safety devices for protection against excessive pressure - Part 4: Pilot operated safety valves

PUBLISH DATE 2013
ISO 4126-4:2013

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.

SDO ISO: International Organization for Standardization
Document Number ISO 4126
Publication Date July 15, 2013
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 185
Publish Date Document Id Type View
July 15, 2013 ISO 4126-4:2013 Revision