EN ISO 4126-3:2020
(Main)Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination (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)
This document specifies only 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 upstream of the valve within five pipe diameters of the valve inlet. It specifies the design, application and marking requirements for such products, composed of the bursting disc safety device, a safety valve or CSPRS and, where applicable, a 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 4126-3:2020)
Dieses Dokument legt nur 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. Es legt die Anforderungen für Konstruktion, Anwendung und Kennzeichnung von Produkten fest, die eine Berstscheibeneinrichtung, ein Sicherheitsventil oder ein gesteuertes Sicherheitsventil (CSPRS) und ggf. ein Anschlussrohr- oder Leitungsstück umfassen. 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: Soupapes de sûreté et dispositifs de sûreté à disque de rupture en combinaison (ISO 4126-3:2020)
Le présent document spécifie seulement les exigences applicables aux combinaisons en série de soupapes de sûreté ou de DSDCS (dispositifs de sécurité à décharge contrôlés contre les surpressions), 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 en amont de la soupape à une distance de l'orifice d'entrée de la soupape au plus égale à cinq diamètres de tuyauterie. Il spécifie les exigences de conception, d'application et de marquage de tels produits, composés du dispositif de sûreté à disque de rupture, une soupape de sûreté ou un DSDCS et, le cas échéant, la tuyauterie ou manchette de raccordement. Il 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/FDIS 4126-3:2020)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 4126-3:2020
01-november-2020
Nadomešča:
SIST EN ISO 4126-3:2006
Naprave za varovanje pred visokim tlakom - 3. del: Varnostni ventili in razpočne
plošče v kombinaciji (ISO/FDIS 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)
Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 3: Sicherheitsventile und
Berstscheibeneinrichtungen in Kombination (ISO 4126-3:2020)
Dispositifs de sécurité pour protection contre les pressions excessives - Partie 3:
Soupapes de sûreté et dispositifs de sûreté à disque de rupture en combinaison (ISO
4126-3:2020)
Ta slovenski standard je istoveten z: EN ISO 4126-3:2020
ICS:
13.240 Varstvo pred previsokim Protection against excessive
tlakom pressure
SIST EN ISO 4126-3:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 4126-3:2020
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SIST EN ISO 4126-3:2020
EN ISO 4126-3
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 13.240 Supersedes EN ISO 4126-3:2006
English Version
Safety devices for protection against excessive pressure -
Part 3: Safety valves and bursting disc safety devices in
combination (ISO 4126-3:2020)
Dispositifs de sécurité pour protection contre les Sicherheitseinrichtungen gegen unzulässigen
pressions excessives - Partie 3: Soupapes de sûreté et Überdruck - Teil 3: Sicherheitsventile und
dispositifs de sûreté à disque de rupture en Berstscheibeneinrichtungen in Kombination (ISO
combinaison (ISO 4126-3:2020) 4126-3:2020)
This European Standard was approved by CEN on 11 July 2020.
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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4126-3:2020 E
worldwide for CEN national Members.
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SIST EN ISO 4126-3:2020
EN ISO 4126-3:2020 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2014/68/EU (PED) aimed to be covered . 4
2
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SIST EN ISO 4126-3:2020
EN ISO 4126-3:2020 (E)
European foreword
This document (EN ISO 4126-3:2020) has been prepared by Technical Committee ISO/TC 185 "Safety
devices for protection against excessive pressure" in collaboration with Technical Committee CEN/TC
69 “Industrial valves” the secretariat of which is held by AFNOR.
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 March 2021, and conflicting national standards shall
be withdrawn at the latest by March 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 4126-3:2006.
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 the 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 st
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