This standard has been revised by ISO 4126-4:2013
Abstract
ISO 4126-4:2003 specifies general requirements for pilot operated safety valves, other than those covered in ISO 4126-1, 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.
ISO 4126-4:2003 is applicable to pilot operated safety valves having a valve flow diameter of 6 mm and above which are for use at set pressures of 0,1 bar gauge and above. No limitation is placed on temperature.
This is a product standard and it is not concerned with applications for pilot operated safety valves.
General information
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Status : WithdrawnPublication date : 2004-02
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Edition : 1Number of pages : 26
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- ICS :
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Protection against excessive pressure
Life cycle
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Previously
WithdrawnISO 6718:1991
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Now
Corrigenda / Amendments
WithdrawnISO 4126-4:2004/Cor 1:2007
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Revised by
PublishedISO 4126-4:2013
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