EN ISO 4126-1:2004

Safety devices for protection against excessive pressure - Part 1: Safety valves (ISO 4126-1:2004)

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.

Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 1: Sicherheitsventile (ISO 4126-1:2004)

Diese Europäische Norm legt allgemeine Anforderungen an Sicherheitsventile fest, unabhängig von dem Medium, für das sie vorgesehen sind.
Die Norm gilt für Sicherheitsventile mit einem engsten Strömungsdurchmesser von mindestens 6 mm und für Ansprechdrücke von 0,1 bar und höher. Hinsichtlich der Temperatur bestehen keine Einschränkungen.
Die vorliegende Norm ist eine Produktnorm und behandelt keine Anwendungsfälle für Sicherheitsventile.

Dispositifs de sécurité pour protection contre les pressions excessives - Partie 1 : Soupapes de sûreté (ISO 4126-1:2004)

L'ISO 4126-1:2004 spécifie les prescriptions générales des soupapes de sûreté, quel que soit le fluide pour lequel elles sont conçues. Elle est applicable aux soupapes de sûreté présentant un orifice d'écoulement de diamètre supérieur ou égal à 6 mm qui sont utilisables à des pressions de début d'ouverture de 0,1 bar effectif et au-dessus. Aucune limitation en température n'est fixée. Il s'agit d'une norme de produit et elle ne s'adresse pas aux applications de soupapes de sûreté.

Naprave za varovanje pred visokim tlakom - 1. del: Varnostni ventili (ISO 4126-1:2004)

General Information

• Status: Withdrawn
• Publication Date: 14-Feb-2004
• Withdrawal Date: 16-Jul-2013
• ICS: 13.240 - Protection against excessive pressure
• Technical Committee: CEN/TC 69 - Industrial valves
• Drafting Committee: CEN/TC 69/WG 10 - Safety devices against excessive pressure
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 17-Jul-2013
• Completion Date: 17-Jul-2013
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: SIST EN ISO 4126-1:2004 - Safety devices for protection against excessive pressure - Part 1: Safety valves (ISO 4126-1:2004)

Relations

• Replaced By: EN ISO 4126-1:2013 - Safety devices for protection against excessive pressure - Part 1: Safety valves (ISO 4126-1:2013)
• Effective Date: 22-Dec-2008
• Corrected By: EN ISO 4126-1:2004/AC:2006 - Safety devices for protection against excessive pressure - Part 1: Safety valves (ISO 4126-1:2004)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 4126-1:2004
01-september-2004
Naprave za varovanje pred visokim tlakom - 1. del: Varnostni ventili (ISO 4126-
1:2004)
Safety devices for protection against excessive pressure - Part 1: Safety valves (ISO
4126-1:2004)
Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 1: Sicherheitsventile (ISO
4126-1:2004)
Dispositifs de sécurité pour protection contre les pressions excessives - Partie 1 :
Soupapes de sureté (ISO 4126-1:2004)
Ta slovenski standard je istoveten z: EN ISO 4126-1:2004
ICS:
13.240
SIST EN ISO 4126-1:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN ISO 4126-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2004
ICS 13.240
English version
Safety devices for protection against excessive pressure - Part
1: Safety valves (ISO 4126-1:2004)
Dispositifs de sécurité pour protection contre les pressions Sicherheitseinrichtungen gegen unzulässigen Überdruck -
excessives - Partie 1 : Soupapes de sûreté (ISO 4126- Teil 1: Sicherheitsventile (ISO 4126-1:2004)
1:2004)
This European Standard was approved by CEN on 16 May 2003.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4126-1:2004: E
worldwide for CEN national Members.

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EN ISO 4126-1:2004 (E)
Contents
Page
1 Scope .4
2 Normative references .4
3 Terms and definitions.5
4 Symbols and units .8
5 Design .8
5.1 General.8
5.2 End connections .9
5.3 Minimum requirements for springs.11
5.4 Materials.11
6 Production testing .11
6.1 Purpose.11
6.2 General.11
6.3 Hydrostatic testing .12
6.4 Pneumatic testing .13
6.5 Adjustment of cold differential test pressure .
...