Standard

NS-EN ISO 4126-4:2004

Withdrawn

Note: This standard has a new edition: NS-EN ISO 4126-4:2013

Corrigendums and amendments are bought separately.

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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.

Document information

  • Standard from SN
  • Published:
  • Withdrawn:
  • Edition: 2004-02
  • Version: 1
  • Document type: NAT
  • ICS 13.240
  • National Committee CEN/TC 69

Legal references

EU law: 97/23/EC

Product Relations

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