• NS EN 764-7 : 1ED 2002

    Current The latest, up-to-date edition.


    Available format(s): 


    Published date:  12-01-2013

    Publisher:  Norwegian Standards (Norges Standardiseringsforbund)

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Risk consideration
      4.1 General
      4.2 Identification of hazards
      4.3 Solutions
    5 Limiting devices and systems
      5.1 General
      5.2 Design
    6 Pressure Limitation
      6.1 General
      6.2 Safety valves, direct loaded and pilot operated
      6.3 Bursting disc safety devices
      6.4 Safety valves and bursting disc safety devices in series
          or parallel
      6.5 Controlled safety pressure relief systems (CSPRS)
      6.6 Safety related measuring, control and regulation systems
    7 Hazard protection
      7.1 Internal
      7.2 External
      7.3 Static electricity
    8 Installation of pressure relieving devices
      8.1 General
      8.2 Safety valves or the main valve of a CSPRS
      8.3 Installation of bursting disc safety devices
      8.4 Safety valve and bursting disc safety devices in combination
      8.5 Isolation of relieving safety systems
    9 Indicators and alarms
      9.1 General
      9.2 Pressure indicators
      9.3 Temperature indicators
      9.4 Liquid level indicators
      9.5 Signals and warning devices
    10 Inspection and maintenance
    Annex A (informative) Sizing of multiple safety valves
    Annex B (normative) Requirements for level limiters
          B.1 General
          B.2 Floating devices
          B.3 Level electrode devices
          B.4 Fault detection
    Annex C (informative) Selection of safety accessories for pressure
    Annex D (normative) Bursting disc safety devices downstream of
                           safety valves
    Annex E (informative) Scope of the standard
    Annex ZA (informative) Clauses of this European Standard addressing
                           essential requirements or other provisions of
                           EU Directives

    Abstract - (Show below) - (Hide below)

    Specifies the requirements for safety systems which protect a vessel, a system of vessels, piping, accessories or assemblies from exceeding operating conditions. Also applicable to safety related indicators and alarms, signals and warning devices when used in safety systems.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher Norwegian Standards (Norges Standardiseringsforbund)
    Status Current
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