EN ISO 4126-3:2006

Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination (ISO 4126-3:2006)

ISO 4126-3:2006 specifies the requirements for a product assembled from the in-series combination of safety valves or CSPRS (controlled safety pressure relief systems) according to ISO 4126-1, ISO 4126-4 and ISO 4126-5, and bursting disc safety devices according to ISO 4126-2 installed within no more than five pipe diameters from the valve inlet. It specifies the design, application and marking requirements for such products, which are used to protect pressure vessels, piping or other enclosures from excessive pressure, and which comprise the bursting disc safety device, a safety valve or CSPRS and, where applicable, a short length of connecting pipe or spool piece. In addition, it gives a method for establishing the combination discharge factor used in sizing combinations.

Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 3: Sicherheitsventile und Berstscheibeneinrichtungen in Kombination (ISO 4126-3:2006)

Dieser Teil von ISO 4126 legt die Anforderungen fest an ein Produkt, bestehend aus einer in Reihe geschalteten Kombination von Sicherheitseinrichtungen bzw. gesteuerten Sicherheitsventilen (CSPRS) nach ISO 4126-1, ISO 4126-4 und ISO 4126-5 und Berstscheibeneinrichtungen nach ISO 4126 2, bei der die Berstscheibeneinrichtung in einem Abstand von höchstens 5 ´ Rohrdurchmesser vor der Ventileintrittsseite eingebaut ist. ISO 4126-3 legt die Anforderungen an die Konstruktion, Anwendung und Kennzeichnung von Produkten fest, die zum Schutz von Druckbehältern, Rohrleitungen oder anderen geschlossenen Systemen gegen unzulässigen Überdruck eingesetzt werden. Diese Produkte beinhalten die Berstscheibeneinrichtung, ein Sicherheitsventil oder CSPRS und gegebenenfalls ein kurzes Anschlussrohr- oder Leitungsstück. Zusätzlich wird ein Verfahren festgelegt, nach dem die bei der Bemessung der Kombination eingesetzte Ausflussziffer bestimmt wird.

Dispositifs de sécurité pour protection contre les pressions excessives - Partie 3: Dispositifs de sûreté combinant soupapes de sûreté et disques de rupture (ISO 4126-3:2006)

L'ISO 4126-3:2006 spécifie les exigences applicables aux combinaisons en série de soupapes de sûreté ou de DSDCS (dispositifs de sécurité à décharge contrôlés contre les surpression), conformément à l'ISO 4126-1, à l'ISO 4126-4 et à l'ISO 4126-5, et de dispositifs de sûreté à disque de rupture conformément à l'ISO 4126-2 installés à une distance de l'orifice d'entrée de la soupape au plus égale à cinq diamètres de tuyauterie. Elle spécifie les exigences de conception, d'application et de marquage de tels produits, qui sont utilisés pour protéger des récipients, des tuyauteries ou d'autres enceintes des pressions excessives, et qui comportent le dispositif de sûreté à disque de rupture, une soupape de sûreté ou un DSDCS et, le cas échéant, une courte longueur de tuyauterie ou une manchette de raccordement. Elle donne, en outre, la méthode permettant d'établir le coefficient de débit de la combinaison utilisé pour le dimensionnement des combinaisons.

Naprave za varovanje pred visokim tlakom - 3. del: Varnostni ventili in razpočne plošče v kombinaciji (ISO 4126-3:2006)

General Information

• Status: Withdrawn
• Publication Date: 28-Feb-2006
• Withdrawal Date: 29-Sep-2020
• 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
• Completion Date: 30-Sep-2020
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• 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 4126-3:2006 - Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination (ISO 4126-3:2006)

Relations

• Replaced By: EN ISO 4126-3:2020 - Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination (ISO 4126-3:2020)
• Effective Date: 07-Oct-2020

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 4126-3:2006
01-maj-2006
1DSUDYH]DYDURYDQMHSUHGYLVRNLPWODNRPGHO9DUQRVWQLYHQWLOLLQUD]SRþQH
SORãþHYNRPELQDFLML,62
Safety devices for protection against excessive pressure - Part 3: Safety valves and
bursting disc safety devices in combination (ISO 4126-3:2006)
Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 3: Sicherheitsventile und
Berstscheibeneinrichtungen in Kombination (ISO 4126-3:2006)
Dispositifs de sécurité pour protection contre les pressions excessives - Partie 3:
Dispositifs de sureté combinant soupapes de sureté et disques de rupture (ISO 4126-
3:2006)
Ta slovenski standard je istoveten z: EN ISO 4126-3:2006
ICS:
13.240
SIST EN ISO 4126-3:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN ISO 4126-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2006
ICS 13.240

English Version
Safety devices for protection against excessive pressure - Part
3: Safety valves and bursting disc safety devices in combination
(ISO 4126-3:2006)
Dispositifs de sécurité pour protection contre les pressions Sicherheitseinrichtungen gegen unzulässigen Überdruck -
excessives - Partie 3: Dispositifs de sûreté combinant Teil 3: Sicherheitsventile und Berstscheibeneinrichtungen
soupapes de sûreté et disques de rupture (ISO 4126- in Kombination (ISO 4126-3:2006)
3:2006)
This European Standard was approved by CEN on 27 February 2006.
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, Romania,
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
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4126-3:2006: E
worldwide for CEN national Members.

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EN ISO 4126-3:2006 (E)


Foreword

This document (EN ISO 4126-3:2006) has been prepared by Technical Committee CEN/TC
69 "Industrial valves", the secretariat of which is held by AFNOR, in collaboration with
Technical Committee ISO/TC 185 "Safety devices for protection against excessive pressure".

This European Standard shall be given the status of a national standard, either by publication
of an identical text or by endorsement, at the latest by September 2006, and conflicting
national standards shall be withdrawn at the latest by September 2006.

This document has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements
of EU Directive(s).

For relationship with EU Directive(s), see informative annex ZA, which is an integral part of
this document.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

2

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EN ISO 4126-3:2006 (E)

Annex ZA
(informative)
Relationship between this International Standard and the
Essential Requirements of EU Directive 97/23/EC (PED)

This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide one means of conforming
to Essential Requirements of the New Approach Directive 97/23/EC, Pressure Equipment
Directive (PED).

Once this standard is cited in the Official Journal of the European Communities under that
Directive and has been implemented as a national standard in at least one Member State,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the
...