Refrigerating systems and heat pumps - Valves - Requirements, testing and marking (ISO 21922:2021)

This document specifies safety requirements, certain functional requirements, and marking of valves and other components with similar bodies, hereinafter called valves, for use in refrigerating systems including heat pumps.
This document includes requirements for valves with extension pipes.
This document describes the procedure to be followed when designing valve parts subjected to pressure as well as the criteria to be used in the selection of materials.
This document describes methods by which reduced impact values at low temperatures may be taken into account in a safe manner.
This document applies to the design of bodies and bonnets for pressure relief devices, including bursting disc devices, with respect to pressure containment but it does not apply to any other aspects of the design or application of pressure relief devices.
In addition, this document is applicable to valves with a maximum operating temperature not exceeding 200 °C and a maximum allowable pressure not exceeding 160 bar[1].
[1] 1 bar = 0,1 MPa.

Kälteanlagen und Wärmepumpen - Ventile - Anforderungen, Prüfung und Kennzeichnung (ISO 21922:2021)

Dieses Dokument legt die Sicherheitsanforderungen, bestimmte funktionale Anforderungen und die Kennzeichnung von Ventilen und anderen Teilen, im Folgenden kurz Ventile genannt, für die Verwendung in Kälteanlagen einschließlich Wärmepumpen fest.
Dieses Dokument enthält Anforderungen für Ventile mit Verlängerungsrohren.
Dieses Dokument beschreibt das Verfahren, das bei der Konstruktion von druckbeanspruchten Ventilen zugrunde zu legen ist, sowie die bei der Auswahl von Werkstoffen für Ventilteile zu berücksichtigenden Kriterien.
Dieses Dokument beschreibt Verfahren, nach denen reduzierte Werte für die Kerbschlagarbeit bei niedriger Temperatur auf sichere Art und Weise berücksichtigt werden dürfen.
Dieses Dokument ist anwendbar für die Konstruktion von Gehäusen und Oberteilen für Druckentlastungseinrichtungen, einschließlich Berstscheibeneinrichtungen, im Hinblick auf die Druckfestigkeit, es ist jedoch nicht anwendbar für andere Aspekte der Konstruktion oder die Anwendung von Druckentlastungseinrichtungen.
Ferner ist dieses Dokument anwendbar für Ventile mit einer maximalen Betriebstemperatur von nicht mehr als 200 °C und einem maximal zulässigen Druck von nicht mehr als 160 bar .

Systèmes de réfrigération et pompes à chaleur - Robinetterie - Exigences, essais et marquage (ISO 21922:2021)

Le présent document spécifie les exigences de sécurité, certaines exigences fonctionnelles et le marquage des robinets et autres composants possèdant un corps similaire, ci-après appelés robinets, pour une utilisation dans les systèmes de réfrigération, y compris les pompes à chaleur.
Le présent document comprend des exigences pour les robinets avec des tuyaux d’extension.
Le présent document décrit la procédure à suivre lors de la conception des éléments de robinetterie soumis à une pression ainsi que les critères à utiliser dans le choix des matériaux.
Le présent document décrit des méthodes permettant de prendre en compte en toute sécurité les valeurs de résilience faibles à basse température.
Le présent document s'applique à la conception des corps et des chapeaux des dispositifs limiteurs de pression, y compris les dispositifs à disque de rupture, eu égard au confinement de la pression, mais elle ne s'applique à aucun autre aspect de la conception ou de l'application des dispositifs limiteurs de pression.
En outre, le présent document est applicable aux robinets dont la température maximale de fonctionnement ne dépasse pas 200 °C et dont la pression maximale admissible ne dépasse pas 160 bar[1].
[1] 1 bar = 0,1 MPa.

Hladilni sistemi in toplotne črpalke - Ventili - Zahteve, preskušanje in označevanje (ISO 21922:2021)

Ta evropski standard določa varnostne zahteve, varnostne faktorje, preskusne metode, uporabljene preskusne tlake in označevanje ventilov za hladilne naprave in drugih komponent s podobnim ohišjem (v nadaljevanju: ventili) za uporabo v hladilnih sistemih.
Opisuje postopek, ki ga je treba upoštevati pri konstruiranju delov ventila (z izračunom ali eksperimentalno metodo konstruiranja), izpostavljenih obremenitvam, in merila, ki se uporabljajo pri izbiri materialov.
Standard opisuje metode, s katerimi se lahko na varen način upošteva zmanjšane udarne vrednosti pri nizkih temperaturah.
Ta standard se uporablja pri konstruiranju ohišij in pokrovov za tlačne varnostne naprave, vključno z napravami z razpočnimi membranami, v zvezi s tlačnim skladiščenjem; vendar se ne uporablja za druge vidike konstruiranja ali uporabe tlačnih varnostnih naprav.

General Information

Status
Published
Publication Date
02-Nov-2021
Withdrawal Date
30-May-2022
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
03-Nov-2021
Due Date
06-Sep-2019
Completion Date
03-Nov-2021

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 21922:2022
01-januar-2022
Nadomešča:
SIST EN 12284:2004
Hladilni sistemi in toplotne črpalke - Ventili - Zahteve, preskušanje in označevanje
(ISO 21922:2021)
Refrigerating systems and heat pumps - Valves - Requirements, testing and marking
(ISO 21922:2021)
Kälteanlagen und Wärmepumpen - Ventile - Anforderungen, Prüfung und
Kennzeichnung (ISO 21922:2021)
Systèmes de réfrigération et pompes à chaleur - Robinetterie - Exigences, essais et
marquage (ISO 21922:2021)
Ta slovenski standard je istoveten z: EN ISO 21922:2021
ICS:
23.060.20 Zapirni ventili (kroglasti in Ball and plug valves
pipe)
27.080 Toplotne črpalke Heat pumps
27.200 Hladilna tehnologija Refrigerating technology
SIST EN ISO 21922:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 21922:2022

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SIST EN ISO 21922:2022


EN ISO 21922
EUROPEAN STANDARD

NORME EUROPÉENNE

November 2021
EUROPÄISCHE NORM
ICS 27.080; 27.200 Supersedes EN 12284:2003
English Version

Refrigerating systems and heat pumps - Valves -
Requirements, testing and marking (ISO 21922:2021)
Systèmes de réfrigération et pompes à chaleur - Kälteanlagen und Wärmepumpen - Ventile -
Robinetterie - Exigences, essais et marquage (ISO Anforderungen, Prüfung und Kennzeichnung (ISO
21922:2021) 21922:2021)
This European Standard was approved by CEN on 23 May 2021.

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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21922:2021 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST EN ISO 21922:2022
EN ISO 21922:2021 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
safety requirements of Directive 2014/68/EU . 4

2

---------------------- Page: 4 ----------------------
SIST EN ISO 21922:2022
EN ISO 21922:2021 (E)
European foreword
This document (EN ISO 21922:2021) has been prepared by Technical Committee ISO/TC 86
"Refrigeration and air-conditioning" in collaboration with Technical Committee CEN/TC 182
“Refrigerating systems, safety and environmental requirements” the secretariat of which is held by DIN.
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 May 2022, and conflicting national standards shall be
withdrawn at the latest by May 2022.
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 12284:2003.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral
part of this document.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organ
...

SLOVENSKI STANDARD
oSIST prEN ISO 21922:2018
01-oktober-2018
+ODGLOQLVLVWHPLLQWRSORWQHþUSDONH9HQWLOL=DKWHYHSUHVNXãDQMHLQR]QDþHYDQMH
,62',6
Refrigerating systems and heat pumps - Valves - Requirements, testing and marking
(ISO/DIS 21922:2018)
Kälteanlagen und Wärmepumpen - Ventile - Anforderungen, Prüfung und
Kennzeichnung (ISO/DIS 21922:2018)
Système de réfrigération et pompes à chaleur - Robinetterie - Exigences, essais et
marquage (ISO/DIS 21922:2018)
Ta slovenski standard je istoveten z: prEN ISO 21922
ICS:
23.060.20 Zapirni ventili (kroglasti in Ball and plug valves
pipe)
27.080 7RSORWQHþUSDONH Heat pumps
27.200 Hladilna tehnologija Refrigerating technology
oSIST prEN ISO 21922:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 21922:2018

---------------------- Page: 2 ----------------------
oSIST prEN ISO 21922:2018
DRAFT INTERNATIONAL STANDARD
ISO/DIS 21922
ISO/TC 86/SC 1 Secretariat: ANSI
Voting begins on: Voting terminates on:
2018-07-18 2018-10-10
Refrigerating systems and heat pumps — Valves —
Requirements, testing and marking
Titre manque
ICS: 27.200; 27.080
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 21922:2018(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 2018

---------------------- Page: 3 ----------------------
oSIST prEN ISO 21922:2018
ISO/DIS 21922:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

---------------------- Page: 4 ----------------------
oSIST prEN ISO 21922:2018
ISO/DIS 21922:2018(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 List of symbols . 3
5 General requirements . 5
5.1 Installation and operation . 5
5.2 Components under pressure . 5
5.3 Excessive mechanical stress .
...

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