RO
SR EN ISO 4126-4:2004
Safety devices for protection against excessive pressure - Part 4: Pilot operated safety valves (ISO 4126-4:2004)
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.
Status :
Withdrawn
Approval date : 12/14/2004
Publish date : 12/15/2004
Withdrawal date : 12/23/2013
Number of pages : 34
ICS : 13.240 Protection against excessive pressure
Technical Committee : 89 - Industrial valves
- Normative reference SR EN 12516-3:2003/AC:2004
- Normative reference SR EN 12627:2003
- Normative reference SR EN 1092-2:2003
- Normative reference SR EN ISO 6708:2003
- Normative reference SR ISO 7-1:2000
- Normative reference SR EN 1092-1:2008
- Normative reference SR EN 1092-3:2004
- Normative reference SR EN 1759-1:2005
- Normative reference SR EN 1092-3:2004/AC:2007
- Normative reference SR EN 12516-3:2003
- Normative reference SR EN 12760:2003
- Replaced by SR EN ISO 4126-4:2013