SIST EN ISO 4126-10:2024
(Main)Safety devices for protection against excessive pressure - Part 10: Sizing of safety valves and bursting discs for gas/liquid two-phase flow (ISO 4126-10:2024)
Safety devices for protection against excessive pressure - Part 10: Sizing of safety valves and bursting discs for gas/liquid two-phase flow (ISO 4126-10:2024)
This document specifies the sizing of safety valves and bursting discs for gas/liquid two-phase flow in pressurized systems such as reactors, storage tanks, columns, heat exchangers, piping systems or transportation tanks/containers, see Figure 2. The possible fluid states at the safety device inlet that can result in two-phase flow are given in Table 1.
NOTE The pressures used in this document are absolute pressures, not gauge pressures.
Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 10: Auslegung von Sicherheitsventilen und Berstscheiben bei Zweiphasenströmung (flüssig/gas) (ISO 4126-10:2024)
Dieses Dokument legt die Bemessung von Sicherheitsventilen und Berstscheiben für Zweiphasen-Strömung (flüssig/gasförmig) in druckbeaufschlagten Systemen wie Reaktoren, Speichertanks, Säulen, Wärmetauschern, Rohrsystemen oder Transporttanks/-behältern fest, siehe Bild 2. Die möglichen Fluidzustände am Eintritt der Sicherheitseinrichtung, die bei einer Zweiphasen-Strömung auftreten können, sind in Tabelle 1 dargestellt.
ANMERKUNG Die in diesem Dokument verwendeten Drücke sind absolute Drücke, keine Überdrucke.
Dispositifs de sécurité pour protection contre les pressions excessives - Partie 10: Dimensionnement des soupapes de sûreté et des disques de rupture pour les débits diphasiques gaz/liquide (ISO 4126-10:2024)
Le présent document spécifie le dimensionnement des soupapes de sûreté et des disques de rupture pour l'écoulement diphasique gaz/liquide dans les systèmes sous pression tels que les réacteurs, les réservoirs de stockage, les colonnes, les échangeurs thermiques, les systèmes de tuyauterie ou les réservoirs/conteneurs de transport, voir Figure 2. Les états possibles du fluide à l'entrée du dispositif de sécurité qui peuvent entraîner un écoulement diphasique sont donnés dans le Tableau 1.
NOTE Dans le présent document, les pressions sont exprimées en pression absolue, et non pas en pression manométrique.
Varnostne naprave za zaščito pred prekomernim tlakom - 10. del: Velikosti varnostnih ventilov in varnostne membrane za dvofazni pretok plina/tekočine (ISO 4126-10:2024)
Ta dokument določa velikosti varnostnih ventilov in varnostne membrane za dvofazni pretok plina/tekočine v sistemih pod tlakom, kot so reaktorji, skladiščni rezervoarji, kolone, toplotni izmenjevalniki, cevni sistemi ali transportni rezervoarji/vsebniki (glej sliko 2). Možna stanja tekočine na dovodu varnostne naprave, ki lahko povzročijo dvofazni pretok, so podana v preglednici 1.
OPOMBA: Vrednosti tlaka v tem dokumentu so vrednosti absolutnega tlaka in ne merilnega tlaka.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 4126-10:2024
01-junij-2024
Varnostne naprave za zaščito pred prekomernim tlakom - 10. del: Velikosti
varnostnih ventilov in varnostne membrane za dvofazni pretok plina/tekočine (ISO
4126-10:2024)
Safety devices for protection against excessive pressure - Part 10: Sizing of safety
valves and bursting discs for gas/liquid two-phase flow (ISO 4126-10:2024)
Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 10: Auslegung von
Sicherheitsventilen und Berstscheiben bei Zweiphasenströmung (flüssig/gas) (ISO 4126-
10:2024)
Dispositifs de sécurité pour protection contre les pressions excessives - Partie 10:
Dimensionnement des soupapes de sûreté et des disques de rupture pour les débits
diphasiques gaz/liquide (ISO 4126-10:2024)
Ta slovenski standard je istoveten z: EN ISO 4126-10:2024
ICS:
13.240 Varstvo pred previsokim Protection against excessive
tlakom pressure
SIST EN ISO 4126-10:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 4126-10:2024
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SIST EN ISO 4126-10:2024
EN ISO 4126-10
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2024
EUROPÄISCHE NORM
ICS 13.240
English Version
Safety devices for protection against excessive pressure -
Part 10: Sizing of safety valves and bursting discs for
gas/liquid two-phase flow (ISO 4126-10:2024)
Dispositifs de sécurité pour protection contre les Sicherheitseinrichtungen gegen unzulässigen
pressions excessives - Partie 10: Dimensionnement des Überdruck - Teil 10: Auslegung von Sicherheitsventilen
soupapes de sûreté et des disques de rupture pour les und Berstscheiben bei Zweiphasenströmung
débits diphasiques gaz/liquide (ISO 4126-10:2024) (flüssig/gas) (ISO 4126-10:2024)
This European Standard was approved by CEN on 2 October 2023.
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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4126-10:2024 E
worldwide for CEN national Members.
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SIST EN ISO 4126-10:2024
EN ISO 4126-10:2024 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
safety requirements of Directive 2014/68/EU (Pressure Equipment Directive)
aimed to be covered . 4
2
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SIST EN ISO 4126-10:2024
EN ISO 4126-10:2024 (E)
European foreword
This document (EN ISO 4126-10:2024) 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 October 2024, and conflicting national standards shall
be withdrawn at the latest by October 2024.
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 has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA S
...
SLOVENSKI STANDARD
oSIST prEN ISO 4126-10:2021
01-september-2021
Varnostne naprave za zaščito pred prekomernim tlakom - 10. del: Velikosti
varnostnih ventilov in varnostne membrane za dvofazni pretok plina/tekočine
(ISO/DIS 4126-10:2021)
Safety devices for protection against excessive pressure - Part 10: Sizing of safety
valves and bursting discs for gas/liquid two-phase flow (ISO/DIS 4126-10:2021)
Sicherheitseinrichtungen gegen unzulässigen Überdruck - Teil 10: Auslegung von
Sicherheitsventilen und Berstscheiben bei Zweiphasenströmung (flüssig/gas) (ISO/DIS
4126 10:2021)
Dispositifs de sécurité pour protection contre les pressions excessives - Partie 10 :
Dimensionnement des soupapes de sûreté et des disques de rupture pour les débits
diphasiques gaz/liquide (ISO/DIS 4126-10:2021)
Ta slovenski standard je istoveten z: prEN ISO 4126-10
ICS:
13.240 Varstvo pred previsokim Protection against excessive
tlakom pressure
oSIST prEN ISO 4126-10:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 4126-10:2021
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oSIST prEN ISO 4126-10:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4126-10
ISO/TC 185 Secretariat: ANSI
Voting begins on: Voting terminates on:
2021-06-07 2021-08-30
Safety devices for protection against excessive pressure —
Part 10:
Sizing of safety valves and bursting discs for gas/liquid
two-phase flow
ICS: 13.240
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 4126-10:2021(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2021
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oSIST prEN ISO 4126-10:2021
ISO/DIS 4126-10:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2021 – All rights reserved
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oSIST prEN ISO 4126-10:2021
ISO/DIS 4126-10:2021(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General . 2
3.2 Pressure . 2
3.3 Flow rate .
...
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