Ships and marine technology -- Design requirements for international ballast water transfer connection flange

This document specifies the material requirements and dimensions of an international flange for the transfer of ballast water between a ship and a shore reception facility, or between ships. It does not address any reconfiguration of the ship's ballast water piping system necessary to connect to the shore-side, e.g. construction of piping from the ship lower machinery levels to the main deck transfer area.

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Status
Published
Publication Date
30-Jan-2020
Current Stage
6060 - International Standard published
Start Date
07-Jan-2020
Completion Date
31-Jan-2020
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ISO 23055:2020 - Ships and marine technology -- Design requirements for international ballast water transfer connection flange
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INTERNATIONAL ISO
STANDARD 23055
First edition
2020-01
Ships and marine technology — Design
requirements for international ballast
water transfer connection flange
Reference number
ISO 23055:2020(E)
ISO 2020
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ISO 23055:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2020 – All rights reserved
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ISO 23055:2020(E)
Contents Page

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

Introduction ..................................................................................................................................................................................................................................v

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

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

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

4 Abbreviated terms .............................................................................................................................................................................................. 1

5 Materials and equipment ............................................................................................................................................................................ 1

5.1 General ........................................................................................................................................................................................................... 1

5.2 Pressure rating ........................................................................................................................................................................................ 2

5.3 Non-metallic materials ..................................................................................................................................................................... 2

5.4 Accessories ................................................................................................................................................................................................. 2

6 Workmanship .......................................................................................................................................................................................................... 2

7 Dimensions ................................................................................................................................................................................................................. 2

8 Marking .......................................................................................................................................................................................................................... 3

9 Quality assurance ................................................................................................................................................................................................ 4

10 Ordering information ...................................................................................................................................................................................... 4

11 Installation ................................................................................................................................................................................................................. 4

Annex A (normative) Design of a flange for ballast water transfer systems of larger capacity ..............5

Annex B (informative) Alternate design of flange bolt hole arrangement .................................................................... 6

Bibliography ................................................................................................................................................................................................................................ 7

© ISO 2020 – All rights reserved iii
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ISO 23055:2020(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 8, Ships and marine technology,

Subcommittee SC 3, Piping and machinery.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
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ISO 23055:2020(E)
Introduction

It is recognized that transfer of ballast water between a ship and a shore-side facility, or another ship,

can be necessary to manage ballast water treatment.

In order for ships and shore facilities to connect the ballast water transfer piping in an efficient

manner, a standardized interface flange is necessary. This type of connection would be similar to the

international fire main ship/shore connection required by the International Convention for the Safety

of Life at Sea (SOLAS).

The need for a standardized international flange for ballast water transfer systems has been presented

to the International Maritime Organization (IMO) Marine Environmental Protection Committee

(MEPC). A standard transfer connection will help enable efficient transfer of ballast water between

ships and facilities in accordance with the Guidel
...

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