ISO 20602:2019

Ships and marine technology — Check valves for use in low temperature applications — Design and testing requirements

This document specifies requirements of design, manufacture, and test methods for cryogenic check valves to have excellent quality of leakage stability in very low temperature environments (−50 °C to −196 °C).

Navires et technologie maritime — Clapets de retenue destinés aux applications à basse température — Exigences de conception et d'essai

General Information

• Status: Published
• Publication Date: 06-May-2019
• ICS: 47.020.30 - Piping systems
• Technical Committee: ISO/TC 8/SC 3 - Piping and machinery
• Drafting Committee: ISO/TC 8/SC 3 - Piping and machinery
• Current Stage: 9020 - International Standard under periodical review
• Start Date: 15-Apr-2024
• Completion Date: 15-Apr-2024

Relations

• Consolidated By: ISO 3175-5:2019 - Textiles — Professional care, drycleaning and wetcleaning of fabrics and garments — Part 5: Procedure for testing performance when cleaning and finishing using dibutoxymethane
• Effective Date: 06-Jun-2022
• Amended By: ISO 20602:2019/Amd 1:2021 - Ships and marine technology — Check valves for use in low temperature applications — Design and testing requirements — Amendment 1
• Effective Date: 18-Dec-2021

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20602
First edition
2019-05
Ships and marine technology — Check
valves for use in low temperature
applications — Design and testing
requirements
Navires et technologie maritime — Clapets de retenue destinés aux
applications à basse température — Exigences de conception et d'essai
Reference number
ISO 20602:2019(E)
©
ISO 2019

---------------------- Page: 1 ----------------------
ISO 20602:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 20602:2019(E)

Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Pressure temperature rating . 3
4.1 Types of fluids . 3
4.2 Working pressure and designed temperature . 3
5 Design . 3
5.1 General structure of a check valve . 3
5.2 Materials — General . 3
5.3 Body . 4
5.3.1 Materials . 4
5.3.2 Manufacturing . 4
5.4 Cover (bonnet) . 5
5.4.1 Types . 5
5.4.2 Materials . 5
5.5 Disc . 5
5.5.1 Types . 5
5.5.2 Materials .
...