prEN ISO 24490
(Main)Cryogenic vessels - Centrifugal pumps for cryogenic service (ISO/DIS 24490:2024)
Cryogenic vessels - Centrifugal pumps for cryogenic service (ISO/DIS 24490:2024)
ISO 24490:2016 specifies the minimum requirements for the design, manufacture and testing of centrifugal pumps for cryogenic service.
ISO 24490:2016 does not apply to reciprocating pumps.
This International Standard also gives guidance on the design of installations (see Annex A).
It does not specify requirements for operation or maintenance.
NOTE For general requirements for materials used in cryogenic fluid service, see ISO 21029-1, ISO 20421-1 and/or ISO 21009-1.
Kryo‑Behälter - Pumpen für den Kryo‑Betrieb (ISO/DIS 24490:2024)
Récipients cryogéniques - Pompes centrifuges pour service cryogénique (ISO/DIS 24490:2024)
ISO 24490:2016 spécifie les exigences minimales en matière de conception, de fabrication et d'essais des pompes pour service cryogénique.
ISO 24490:2016 s'applique aux pompes centrifuges. Le cas échéant, elle peut toutefois être appliquée à d'autres types de pompes cryogéniques (pompes à piston, par exemple).
La présente Norme internationale donne également des préconisations pour la conception des installations (voir l'Annexe A).
Elle ne spécifie aucune exigence relative au fonctionnement ou à la maintenance.
NOTE Pour les fluides cryogéniques, voir l'ISO 21029‑1, l'ISO 20421‑1 et/ou l'ISO 21009‑1.
Kriogene posode - Centrifugalne črpalke za kriogeno območje (ISO/DIS 24490:2024)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2024
Kriogene posode - Centrifugalne črpalke za kriogeno območje (ISO/DIS
24490:2024)
Cryogenic vessels - Centrifugal pumps for cryogenic service (ISO/DIS 24490:2024)
Kryo‑Behälter - Pumpen für den Kryo-Betrieb (ISO/DIS 24490:2024)
Récipients cryogéniques - Pompes centrifuges pour service cryogénique (ISO/DIS
24490:2024)
Ta slovenski standard je istoveten z: prEN ISO 24490
ICS:
23.020.40 Proti mrazu odporne posode Cryogenic vessels
(kriogenske posode)
23.080 Črpalke Pumps
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
International
Standard
ISO/DIS 24490
ISO/TC 220
Cryogenic vessels — Centrifugal
Secretariat: AFNOR
pumps for cryogenic service
Voting begins on:
Récipients cryogéniques — Pompes centrifuges pour service
2024-06-03
cryogénique
Voting terminates on:
ICS: 23.020.40 2024-08-26
THIS DOCUMENT IS A DRAFT CIRCULATED
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Reference number
ISO/DIS 24490:2024(en)
DRAFT
ISO/DIS 24490:2024(en)
International
Standard
ISO/DIS 24490
ISO/TC 220
Cryogenic vessels — Centrifugal
Secretariat: AFNOR
pumps for cryogenic service
Voting begins on:
Récipients cryogéniques — Pompes centrifuges pour service
cryogénique
Voting terminates on:
ICS: 23.020.40
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
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Published in Switzerland Reference number
ISO/DIS 24490:2024(en)
ii
ISO/DIS 24490:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements for pumps . 2
4.1 Types .2
4.1.1 General .2
4.1.2 Horizontal Cryogenic Pump Systems .3
4.1.3 Vertical / Submerged Inert Cryogenic Pump Systems .3
4.1.4 Vertical / Submerged Liquid Oxygen Pump Systems .3
4.2 Materials .3
4.2.1 General .3
4.2.2 Mechanical properties at low temperature .3
4.2.3 Corrosion resistance .4
4.2.4 Oxygen and oxidizing fluids compatibility .4
4.2.5 Hydrogen compatibility .4
4.3 Design .5
4.3.1 Pressure-containing parts .5
4.3.2 Performance .5
4.3.3 Clearances .5
4.3.4 Prevention of rubbing .5
4.3.5 Fastenings .5
4.3.6 Warm bearings .5
4.3.7 Cold bearings .5
4.3.8 Bearing lubrication .5
4.3.9 Shaft seals .6
4.3.10 Purging .6
4.3.11 Prevention of particle contamination .7
4.3.12 Specific requirement for flammable cryogenic fluids .7
4.3.13 Protection against over-pressurization.7
4.3.14 Pump motors .7
5 Test procedures . 7
5.1 Prototype testing .7
5.1.1 General .7
5.1.2 Design evaluation .8
5.1.3 Performance evaluation . .8
5.1.4 Initial tests .8
5.1.5 Cryogenic tests .8
5.2 Production testing .9
5.2.1 General .9
5.2.2 Hydrostatic pressure test .9
5.2.3 Mechanical running and performance test .9
6 Cleanliness . 9
7 Marking . . 9
Annex A (informative) Guidance on installation design . 10
Annex B (informative) Acceptable materials for construction of centrifugal pumps for liquid
oxygen .12
Bibliography .16
iii
ISO/DIS 24490:2024(en)
Foreword
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