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prEN ISO 14903

(Main)

Refrigerating systems and heat pumps - Qualification of tightness of components and joints (ISO/DIS 14903:2023)

Refrigerating systems and heat pumps - Qualification of tightness of components and joints (ISO/DIS 14903:2023)

ISO 14903:2017 provides the qualification procedure for type approval of the tightness of hermetically sealed and closed components, joints and parts used in refrigerating systems and heat pumps as described in relevant parts of ISO 5149. The sealed and closed components, joints and parts concerned are, in particular, fittings, bursting discs, flanged or fitted assemblies. The tightness of flexible piping made from non-metallic materials is dealt with in ISO 13971. Metal flexible piping are covered by this document.
The requirements contained in this document are applicable to joints of maximum DN 50 and components of internal volume of maximum 5 l and maximum weight of 50 kg.
ISO 14903:2017 is intended to characterize their tightness stresses met during their operations, following the fitting procedure specified by the manufacturer, and to specify the minimal list of necessary information to be provided by the supplier of a component to the person in charge of carrying out this procedure.
It specifies the level of tightness of the component, as a whole, and its assembly as specified by its manufacturer.
It applies to the hermetically sealed and closed components, joints and parts used in the refrigerating installations, including those with seals, whatever their material and their design are.
ISO 14903:2017 specifies additional requirements for mechanical joints that can be recognized as hermetically sealed joints.

Kälteanlagen und Wärmepumpen - Qualifizierung der Dichtheit der Bauteile und Verbindungen (ISO/DIS 14903:2023)

Systèmes de réfrigération et pompes à chaleur - Qualification de l'étanchéité des composants et des joints (ISO/DIS 14903:2023)

ISO 14903:2017 fournit les procédures de qualification pour essai de type de l'étanchéité des composants, joints et éléments hermétiquement scellés et fermés, utilisés dans les systèmes de réfrigération et les pompes à chaleur comme décrits dans les parties pertinentes de l'ISO 5149. Les composants, joints et éléments scellés ou fermés sont notamment les raccords, les disques de rupture ou d'éclatement, les assemblages à brides ou à raccords. L'étanchéité des flexibles en matériaux non métalliques est traitée dans l'ISO 13971. Les flexibles métalliques sont couverts par le présent document.
Les exigences du présent document s'appliquent aux joints de DN 50 maximum et aux composants de 5 l maximum et d'un poids maximal de 50 kg.
ISO 14903:2017 est destiné à caractériser leur étanchéité, les contraintes rencontrées pendant leur fonctionnement, en suivant la procédure de montage spécifiée par le fabricant et à spécifier la liste minimale des informations nécessaires à fournir par le fournisseur d'un composant à la personne chargée de mettre en ?uvre cette procédure.
Il spécifie le niveau d'étanchéité du composant, dans son ensemble, ainsi que son assemblage comme spécifié par son fabricant.
Il est applicable aux composants, joints et éléments hermétiquement scellés et fermés utilisés dans les installations frigorifiques, y compris ceux avec joints d'étanchéité, indépendamment de leur matière et de leur conception.
ISO 14903:2017 spécifie des exigences supplémentaires concernant les joints mécaniques susceptibles d'être considérés comme des joints hermétiquement scellés.

Hladilni sistemi in toplotne črpalke - Ocena tesnosti sestavnih delov in spojev (ISO/DIS 14903:2023)

General Information

Status
Not Published
Publication Date
31-Dec-2024
ICS
27.080 - Heat pumps
27.200 - Refrigerating technology
Technical Committee
CEN/TC 182 - Refrigerating systems, safety and environmental requirements
Drafting Committee
CEN/TC 182/WG 9 - Tightness of components
Current Stage
4060 - Closure of enquiry - Enquiry
Start Date
08-Nov-2023
Completion Date
08-Nov-2023
Ref Project
oSIST prEN ISO 14903:2023 - Refrigerating systems and heat pumps - Qualification of tightness of components and joints (ISO/DIS 14903:2023)

Relations

Revises
EN ISO 14903:2017 - Refrigerating systems and heat pumps - Qualification of tightness of components and joints (ISO 14903:2017)
Effective Date
12-Apr-2023

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SLOVENSKI STANDARD
oSIST prEN ISO 14903:2023
01-november-2023
Hladilni sistemi in toplotne črpalke - Ocena tesnosti sestavnih delov in spojev
(ISO/DIS 14903:2023)
Refrigerating systems and heat pumps - Qualification of tightness of components and
joints (ISO/DIS 14903:2023)
Kälteanlagen und Wärmepumpen - Qualifizierung der Dichtheit der Bauteile und
Verbindungen (ISO/DIS 14903:2023)
Systèmes de réfrigération et pompes à chaleur - Qualification de l'étanchéité des
composants et des joints (ISO/DIS 14903:2023)
Ta slovenski standard je istoveten z: prEN ISO 14903
ICS:
27.080 Toplotne črpalke Heat pumps
27.200 Hladilna tehnologija Refrigerating technology
oSIST prEN ISO 14903:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 14903:2023

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oSIST prEN ISO 14903:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14903
ISO/TC 86/SC 1 Secretariat: ANSI
Voting begins on: Voting terminates on:
2023-08-16 2023-11-08
Refrigerating systems and heat pumps — Qualification of
tightness of components and joints
Systèmes de réfrigération et pompes à chaleur — Qualification de l'étanchéité des composants et des joints
ICS: 27.080; 27.200
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
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 14903:2023(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 2023

---------------------- Page: 3 ----------------------
oSIST prEN ISO 14903:2023
ISO/DIS 14903:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14903
ISO/TC 86/SC 1 Secretariat: ANSI
Voting begins on: Voting terminates on:

Refrigerating systems and heat pumps — Qualification of
tightness of components and joints
Systèmes de réfrigération et pompes à chaleur — Qualification de l'étanchéité des composants et des joints
ICS: 27.080; 27.200
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 14903:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2023 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

---------------------- Page: 4 ----------------------
oSIST prEN ISO 14903:2023
ISO/DIS 14903:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions .
...

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b)   to secondary cooling or heating systems;
c)   to the location of the refrigerating systems;
d)   to replaced parts and added components after adoption of this standard if they are not identical in function and in the capacity.
Systems using refrigerants other than those listed in Annex E of FprEN-378 1:2016 are not covered by this standard.
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This standard is not applicable to refrigerating systems which were manufactured before the date of its publication as a European Standard except for extensions and modifications to the system which were implemented after publication.
This standard is applicable to new refrigerating systems, extensions or modifications of already existing systems, and for existing stationary systems, being transferred to and operated on another site.
This standard also applies in the case of the conversion of a system to another refrigerant type, in which case conformity to the relevant clauses of parts 1 to 4 of the standard shall be assessed.

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