Standard Swedish standard · SS-EN ISO 4126-4:2004

Safety devices for protection against excessive pressure - Part 4: Pilot operated safety valves (ISO 4126-4:2004)

Status: Withdrawn · Replaced by: SS-EN ISO 4126-4:2013

Scope
This part of this European Standard specifies general requirements for pilot operated safety valves, other than those covered in Part 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. It 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.

Subjects

Protection against excessive pressure Pressure regulators


Product information

Language: English

Written by: SIS - Materialteknik

International title: Safety devices for protection against excessive pressure - Part 4: Pilot operated safety valves (ISO 4126-4:2004)

Article no: STD-35568

Edition: 1

Approved: 3/12/2004

No of pages: 31

Replaced by: SS-EN ISO 4126-4:2013