NF E29-411

NF E29-411

December 1988
Standard Cancelled

Industrial valves. Safety and relief valves. General design, test, maintenance marking, conditioning.

La publication de la présente norme a été jugée nécessaire afin de faire suivre à la normalisation française les évolutions de la normalisation ISO. Cette évolution s'accompagne d'une nouvelle structure donnée à l'ensemble des normes relatives aux soupapes de sûreté.

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Main informations

Collections

National standards and national normative documents

Thematics

Sécurité, Gestion des risques et SST, QSE

Publication date

December 1988

Number of pages

11 p.

Reference

NF E29-411

ICS Codes

13.240   Protection against excessive pressure

Classification index

E29-411

Print number

1 - 01/02/1992
Sumary
Industrial valves. Safety and relief valves. General design, test, maintenance marking, conditioning.

La publication de la présente norme a été jugée nécessaire afin de faire suivre à la normalisation française les évolutions de la normalisation ISO. Cette évolution s'accompagne d'une nouvelle structure donnée à l'ensemble des normes relatives aux soupapes de sûreté.
Replaced standards (1)
NF E29-411
September 1984
Standard Cancelled
Industrial valves. Safety and relief valves. General design, test, marking, conditioning.

Standard replaced by (3)
NF EN ISO 4126-1
July 2004
Standard Cancelled
Safety devices for protection against excessive pressure - Part 1 : safety valves

<p>ISO 4126-1:2004 specifies general requirements for safety valves irrespective of the fluid for which they are designed. It is applicable to safety valves having a 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 is not concerned with applications for safety valves.</p>

NF EN ISO 4126-4
July 2004
Standard Cancelled
Safety devices for protection against excessive pressure - Part 4 : pilot operated safety valves

<p>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.</p> <p>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.</p> <p>This is a product standard and it is not concerned with applications for pilot operated safety valves.</p>

NF EN ISO 4126-7
July 2004
Standard Cancelled
Safety devices for protection against excessive pressure - Part 7 : common data

<p>ISO 4126-7:2004 contains data common to other parts of ISO 4126, thus avoiding unnecessary repetition, and is referenced in those other parts as appropriate.</p>

Table of contents
  • 1 OBJET ET DOMAINE D'APPLICATION
    3
  • 2 RÉFÉRENCES
    4
  • 3 CONCEPTION GÉNÉRALE
    4
  • 3.1 Construction
    4
  • 3.2 Matériaux
    4
  • 3.3 Raccordement
    5
  • 4 TYPES DE SOUPAPES DE SÛRETÉ
    5
  • 4.1 Généralités
    5
  • 4.2 Types d e soupapes
    5
  • 5 ESSAIS DE RÉSISTANCE À LA PRESSION DE L'ENVELOPPE
    6
  • 5.1 Prescriptions générales
    6
  • 5.2 Essai de résistance à la pression de l'enveloppe
    6
  • 6 ESSAI D E FONCTIONNEMENT
    8
  • 6.1 Généralités
    8
  • 6.2 Essais de détermination des caractéristiques de fonctionnement
    8
  • 6.3 Vérification de la qualité de l'étanchéité
    9
  • 7 PROCÈS VERBAUX ET RÉSULTATS D'ESSAIS
    9
  • 8 MAINTENANCE, RÉGLAGE ET RÉPARATION DES SOUPAPES
    9
  • 9 MARQUAGE
    10
  • 9.1 Sur le corps
    10
  • 9.2 Sur le raccordement
    10
  • 9.3 Sur la fiche signalétique
    11
  • 10 CONDITIONNEMENT MINIMAL
    11
  • ANNEXE - Différences essentielles par rapport à la norme ISO 4126
    12
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