EN ISO 28921-1:2017
(Main)Industrial valves - Isolating valves for low-temperature applications - Part 1: Design, manufacturing and production testing (ISO 28921-1:2013)
Industrial valves - Isolating valves for low-temperature applications - Part 1: Design, manufacturing and production testing (ISO 28921-1:2013)
ISO 28921-1:2013 specifies requirements for design, dimensions, material, fabrication and production testing of isolation valves for low-temperature applications. It applies to gate, globe, check, butterfly and ball valves and can be used for other valve types used in low-temperature services.
ISO 28921-1:2013 covers isolation valves for use in cryogenic temperature service where the design low-temperature service is ?50 °C down to ? 96 °C. It covers valves with body, bonnet, bonnet extension or cover made of metallic materials.
ISO 28921-1:2013 covers valves of nominal sizes DN: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 650; 700; 750; 800; 850; 900, corresponding to nominal pipe sizes NPS: 3/8; ½; ; 1; 11/4; 11/2; 2; 21/2; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 26; 28; 30; 32; 34; 36.
It applies to pressure designations:
PN 16; 25; 40; 100; 160; 250;
Class 150; 300; 600; 800; 900; 1 500.
Industriearmaturen - Absperrventile für die Anwendung im Tieftemperaturbereich - Teil 1: Auslegung, Fertigung und Produktionsprüfung (ISO 28921-1:2013)
Dieser Teil der ISO 28921 legt Anforderungen an die Auslegung, Maße, das Material, die Fertigung und die Fertigungsprüfung von Absperrventilen für Tieftemperaturanwendungen fest.
Er ist auf Schieber, Durchgangsventile, Rückschlagventile, Drosselventile und Kugelventile anwendbar und kann auch für andere Ventilarten im Tieftemperaturbereich eingesetzt werden.
Dieser Teil der ISO 28921 behandelt Absperrventile zum Einsatz im kryogenen Temperaturbetrieb, in welchem der geplante Tieftemperaturbereich zwischen −50 °C und −196 °C liegt.
Dieser Teil der ISO 28921 gilt nicht für Ventile für den kryogenen Betrieb, die in Übereinstimmung mit ISO 21011 für den Einsatz mit Kryo Behältern ausgelegt sind.
In Fällen, in denen die Anforderungen dieses Teils der ISO 28921 von den Anforderungen in der Produktnorm der Ventile abweichen, sind die Anforderungen dieses Teils der ISO 28921 anzuwenden.
Dieser Teil der ISO 28921 behandelt Ventile mit einem Ventilgehäuse, einem Ventiloberteil, einer Verlängerung des Oberteils oder einem Deckel aus metallischen Werkstoffen.
Es werden Ventile der folgenden Nennweiten DN abgedeckt: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 650; 700; 750; 800; 850; 900,
entsprechend den NPS: 3/8; 1/2; 3/4; 1; 11/4; 11/2; 2; 21/2; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 26; 28; 30; 32; 34; 36,
und anwendbar auf Druckbezeichnungen:
PN 16; 25; 40; 100; 160; 250.
Class 150; 300; 600; 800; 900; 1 500.
ANMERKUNG PN 250 und Class 1 500 in Größen DN > 100 und NPS > 4 werden nicht von diesem Teil der ISO 28921 abgedeckt.
Robinetterie industrielle - Robinets d'isolement pour application à basses températures - Partie 1: Conception, essais de fabrication et de production (ISO 28921-1:2013)
L'ISO 28921-1:2013 spécifie les exigences relatives à la conception, aux dimensions, aux matériaux, à la fabrication et aux essais de production des robinets d'isolement pour application à basses températures.
Elle s'applique aux robinets-vannes, aux robinets à soupape, aux clapets de non-retour, aux robinets à papillon et aux robinets à tournant sphérique et peut être utilisée pour d'autres types d'appareils de robinetterie destinés à un usage à basses températures.
L'ISO 28921-1:2013 traite des robinets d'isolement destinés à un usage à basses températures pour lesquels la température de calcul est comprise entre -50 °C et -196 °C.
Elle traite des appareils de robinetterie dont le corps, le chapeau, l'extension du chapeau ou le couvercle sont en matériaux métalliques.
L'ISO 28921-1:2013 couvre les appareils de robinetterie de diamètre nominal DN: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 650; 700; 750; 800; 850; 900, correspondant à des dimensions nominales de tubes NPS: 3/8; 1/2; 3/4; 1; 1 1/4; 1 1/2; 2; 2 1/2; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 26; 28; 30; 32; 34; 36.
Elle s'applique aux désignations de pression:
PN 16; 25; 40; 100; 160; 250;
Class 150; 300; 600; 800; 900; 1 500.
Industrijski ventili - Zapirni ventili za uporabo pri nizki temperaturi - 1. del: Načrtovanje, proizvodnja in preskušanje med proizvodnjo (ISO 28921-1:2013)
ISO 28921-1:2013 določa zahteve glede zasnove, dimenzij, materiala, izdelave in proizvodnega preskušanja izolacijskih ventilov za uporabo pri nizkih temperaturah. Uporablja se za zasune, zapiralne ventile, protipovratne ventile, zaporne lopute ter krogelne ventile in se lahko uporablja za druge vrste ventilov, ki se uporabljajo pri nizkih temperaturah.
ISO 28921-1:2013 zajema izolacijske ventile za uporabo pri kriogenih temperaturah, pri čemer je predviden razpon nizke temperature od ?50 °C do ? 96 °C. To zajema ventile z ohišjem, pokrovom, podaljškom pokrova ali plaščem iz kovinskih materialov.
ISO 28921-1:2013 zajema ventile nazivnih velikosti DN: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 650; 700; 750; 800; 850; 900, ki ustrezajo nazivnim velikostim cevi NPS: 3/8; ½; 1; 11/4; 11/2; 2; 21/2; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 26; 28; 30; 32; 34; 36.
Uporablja se za označbe tlaka:
PN 16; 25; 40; 100; 160; 250;
Class 150; 300; 600; 800; 900; 1 500.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2017
1DGRPHãþD
SIST EN 12567:2001
,QGXVWULMVNLYHQWLOL=DSLUQLYHQWLOL]DXSRUDERSULQL]NLWHPSHUDWXULGHO
1DþUWRYDQMHSURL]YRGQMDLQSUHVNXãDQMHPHGSURL]YRGQMR ,62
Industrial valves - Isolating valves for low-temperature applications - Part 1: Design,
manufacturing and production testing (ISO 28921-1:2013)
Robinetterie industrielle - Robinets d'isolement pour application à basses températures -
Partie 1: Conception, essais de fabrication et de production (ISO 28921-1:2013)
Ta slovenski standard je istoveten z: EN ISO 28921-1:2017
ICS:
23.060.01 Ventili na splošno Valves in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 28921-1
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2017
EUROPÄISCHE NORM
ICS 23.060.01 Supersedes EN 12567:2000
English Version
Industrial valves - Isolating valves for low-temperature
applications - Part 1: Design, manufacturing and
production testing (ISO 28921-1:2013)
Robinetterie industrielle - Robinets d'isolement pour Industriearmaturen - Absperrventile für die
application à basses températures - Partie 1: Anwendung im Niedertemperaturbereich - Teil 1:
Conception, essais de fabrication et de production (ISO Auslegung, Fertigung, Produktionsprüfung (ISO 28921-
28921-1:2013) 1:2013)
This European Standard was approved by CEN on 10 January 2017.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 28921-1:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 28921-1:2013 has been prepared by Technical Committee ISO/TC 153 “Valves” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 28921-1:2017
by 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 August 2017, and conflicting national standards shall
be withdrawn at the latest by August 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
EN ISO 28921-1 and EN ISO 28921-2 supersede EN 12567:2000.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 28921-1:2013 has been approved by CEN as EN ISO 28921-1:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 28921-1
First edition
2013-05-01
Industrial valves — Isolating valves for
low-temperature applications —
Part 1:
Design, manufacturing and
production testing
Robinetterie industrielle — Robinets d’isolement pour application à
basses températures —
Partie 1: Conception, essais de fabrication et de production
Reference number
ISO 28921-1:2013(E)
©
ISO 2013
ISO 28921-1:2013(E)
© ISO 2013
All rights reserved. Unless otherwise specified, 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
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Published in Switzerland
ii © ISO 2013 – All rights reserved
ISO 28921-1:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Requirements . 3
4.1 Materials . 3
4.2 Design . 4
5 Testing .10
5.1 Production testing with low-temperature test . .10
6 Sampling .10
6.1 Lot requirements .10
6.2 Sample size .11
6.3 Lot acceptance .11
7 Marking, labelling and packaging .11
Annex A (normative) Test procedure for production testing of valves at low temperature .13
Annex B (informative) Low-temperature test record .21
Bibliography .23
ISO 28921-1:2013(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 28921-1 was prepared by Technical Committee ISO/TC 153, Valves, Subcommittee SC 1, Design,
manufacture, marking and testing.
ISO 28921 consists of the following parts, under the general title Industrial valves — Isolating valves for
low-temperature applications:
— Part 1: Design, manufacturing and production testing
— Part 2: Type testing
iv © ISO 2013 – All rights reserved
ISO 28921-1:2013(E)
Introduction
The purpose of this part of ISO 28921 is the establishment of basic requirements and practices for design,
fabrication, material selection and production testing of valves used in low-temperature services. The
intention is to provide requirements for design, material selection and valve preparation for valves to be
used in low-temperature service.
INTERNATIONAL STANDARD ISO 28921-1:2013(E)
Industrial valves — Isolating valves for low-temperature
applications —
Part 1:
Design, manufacturing and production testing
1 Scope
This part of ISO 28921 specifies requirements for design, dimensions, material, fabrication and
production testing of isolation valves for low-temperature applications.
It applies to gate, globe, check, butterfly and ball valves and can be used for other valve types used in
low-temperature services.
This part of ISO 28921 covers isolation valves for use in cryogenic temperature service where the design
low-temperature service is –50 °C down to –196 °C.
This part of ISO 28921 does not apply to valves for cryogenic services, designed in accordance with
ISO 21011, used with cryogenic vessels.
Where the requirements of this part of ISO 28921 vary from those given in the valve product standards,
the requirements of this part of ISO 28921 apply.
This part of ISO 28921 covers valves with body, bonnet, bonnet extension or cover made of metallic materials.
It covers valves of nominal sizes DN: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350;
400; 450; 500; 600; 650; 700; 750; 800; 850; 900,
corresponding to nominal pipe sizes NPS: 3/8; 1/2; 3/4; 1; 11/4; 11/2; 2; 21/2; 3; 4; 5; 6; 8; 10; 12; 14; 16;
18; 20; 24; 26; 28; 30; 32; 34; 36,
and applies to pressure designations:
— PN 16; 25; 40; 100; 160; 250.
— Class 150; 300; 600; 800; 900; 1 500.
NOTE PN 250 and Class 1 500 in sizes DN > 100 and NPS > 4 are not covered in this part of ISO 28921.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable to its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 5208, Industrial valves — Pressure testing of metallic valves
ISO 5209, General purpose industrial valves — Marking
ISO 10434, Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
ISO 10497, Testing of valves — Fire type-testing requirements
ISO 10631, Metallic butterfly valves for general purposes
ISO 14313, Petroleum and natural gas industries — Pipeline transportation systems — Pipeline valves
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