Petroleum, petrochemical and natural gas industries — Shell-and-tube heat exchangers

This document specifies requirements and gives recommendations for the mechanical design, material selection, fabrication, inspection, testing and preparation for shipment of shell-and-tube heat exchangers for the petroleum, petrochemical and natural gas industries. This document supplements API Std 660, 9th edition (2015), the requirements of which are applicable with the exceptions specified in this document. This document is applicable to the following types of shell-and-tube heat exchangers: heaters, condensers, coolers and reboilers. This document is not applicable to vacuum-operated steam surface condensers and feed-water heaters.

Industries du pétrole, de la pétrochimie et du gaz naturel — Échangeurs de chaleur à faisceaux

General Information

Status
Published
Publication Date
30-Jan-2019
Current Stage
6060 - International Standard published
Start Date
31-Jan-2019
Completion Date
31-Jan-2019
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ISO 16812:2019 - Petroleum, petrochemical and natural gas industries -- Shell-and-tube heat exchangers
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INTERNATIONAL ISO
STANDARD 16812
Third edition
2019-02
Petroleum, petrochemical and natural
gas industries — Shell-and-tube heat
exchangers
Industries du pétrole, de la pétrochimie et du gaz naturel —
Échangeurs de chaleur à faisceaux
Reference number
ISO 16812:2019(E)
ISO 2019
---------------------- Page: 1 ----------------------
ISO 16812:2019(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
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2019 – All rights reserved
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ISO 16812:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Supplements to API Std 660, 9th edition (2015)................................................................................................................. 2

4.1 General requirements ....................................................................................................................................................................... 2

4.2 Service designation ............................................................................................................................................................................. 2

4.3 Requirements for carbon steel in sour or wet hydrogen sulfide service .............................................. 2

4.4 Weld procedure qualification ..................................................................................................................................................... 2

4.5 Sour or wet hydrogen sulfide service .................................................................................................................................. 2

4.5.1 Subclause A.2.2.1 ............................................................................................................................................................. 2

4.5.2 Subclauses A.2.2.2 and A.2.2.3 ............................................................................................................................. 2

4.6 Tube failure in high-pressure units ....................................................................................................................................... 2

Bibliography ................................................................................................................................................................................................................................ 3

© ISO 2019 – All rights reserved iii
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ISO 16812:2019(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso

.org/iso/foreword .html.

This document was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore

structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing

equipment and systems.

This third edition cancels and replaces the second edition (ISO 16812:2007), which has been technically

revised.
This document supplements API Std 660, 9th edition (2015).

The technical requirements of this document and API Std 660 used to be identical. In the meantime API

Std 660 has been technically revised as API Std 660, 9th edition (2015). The purpose of this document

is to bring it up to date, by referencing the current edition of API Std 660 and adding supplementary

content.
The main changes compared to the previous edition are as follows:
— Improved guidance on cyclic service and sour service;

— The minimum bend for ‘U’ tubes when using stainless steel, duplex, etc., increased;

— Minimum requirements added w
...

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