Ships and marine technology — Drain facilities from oil and water tanks

This document specifies the dimensions and materials for welding rings and drain screws of drain facilities situated at the bottom of oil and water tanks. Oil and water tanks occur as: — built-in tanks, as an integrated part of the hull structure; and — detachable tanks, located in appropriate rooms and compartments. This document covers facilities for both instances.

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Status
Published
Publication Date
15-Aug-2023
Current Stage
6060 - International Standard published
Start Date
16-Aug-2023
Due Date
03-Feb-2024
Completion Date
16-Aug-2023
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INTERNATIONAL ISO
STANDARD 5483
Third edition
2023-08
Ships and marine technology — Drain
facilities from oil and water tanks
Reference number
ISO 5483:2023(E)
© ISO 2023

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ISO 5483:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

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ISO 5483:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Designation . 1
5 General assembly arrangement . 2
5.1 Assembly . 2
5.2 Threads . 5
5.3 Materials . 5
6 Mounting. 5
6.1 Type A . 5
6.2 Type B . 6
6.3 Type C . 9
6.4 Type D . 10
6.5 General for all types . .12
7 Welding ring .12
7.1 Welding ring — Type A .12
7.2 Welding ring — Type B . 14
7.3 Welding ring — Type C .15
7.4 Welding ring — Type D . 17
8 Drain Screws .19
8.1 For water tanks — Type A . 19
8.2 For water tanks — Type B . 20
8.3 For water tanks — Type C . 21
8.4 For water tanks — Type D . 23
8.5 For oil tanks — Type A .25
8.6 For oil tanks — Type B .26
8.7 For oil tanks — Type C.28
8.8 For oil tanks — Type D .29
9 Marking and location .31
9.1 Marking for Type A, Type B and Type C . 31
9.2 Marking for Type D . 32
10 Opening of drain facilities .33
Annex A (informative) Type of wrench .34
iii
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ISO 5483:2023(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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
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.
This third edition cancels and replaces the second edition (ISO 5483:2003), which has been technically
revised.
The main changes are as follows:
— the normative references have been updated;
— Clause 3 has been added;
— in Clause 4, Type C and Type D for jack-up platform have been added;
— in Clause 5, the general arrangement and parts list for Type C and Type D have been added;
— in Clause 6, mounting and main dimensions for Type C and Type D assembly have been added;
— Figure 6 has been moved to 6.5;
— in Clause 7, designations for welding rings in Type C and Type D have been added;
— in Clause 8, details for Type C and Type D drain screws in water tanks and oil tanks have been
added;
— in Clause 9, marking has been updated and added for Type D;
— in Clause 10, opening methods for drain facilities have been added;
— Annex A has been added.
iv
  © ISO 2023 – All rights reserved

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ISO 5483:2023(E)
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.
v
© ISO 2023 – All rights reserved

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INTERNATIONAL STANDARD ISO 5483:2023(E)
Ships and marine technology — Drain facilities from oil
and water tanks
1 Scope
This document specifies the dimensions and materials for welding rings and drain screws of drain
facilities situated at the bottom of oil and water tanks.
Oil and water tanks occur as:
— built-in tanks, as an integrated part of the hull structure; and
— detachable tanks, located in appropriate rooms and compartments.
This document covers facilities for both instances.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 68-1, ISO general purpose screw threads — Basic profile—Part 1:Metric screw threads
ISO 261, ISO general purpose metric screw threads — General plan
ISO 965-1, ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general
purpose external and internal screw threads — Medium quality
ISO 965-3, ISO general purpose metric screw threads — Tolerances — Part 3: Limit deviations for screw
threads
ISO 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual
tolerance indications
ISO 16143-1, Stainless steels for general purposes — Part 1: Corrosion-resistant flat products
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Designation
For the purposes of this document, four types of drain facilities are covered:
— Type A, which is universally applicable, especially where flush mounting with the outer surface of
hull plating at plate thickness is less than 38 mm;
1
© ISO 2023 – All rights reserved

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ISO 5483:2023(E)
— Type B and Type C, which are usable in other instances where the Type A is not applicable;
— Type D, which is used in jackup platforms where flush mounting with the outer surface of hull
plating.
NOTE Type A, B, C and D arrangements are identified by the following two categories of drain screws:
— square wrench connection for water tanks, and
— hexagonal wrench connection for oil tanks.
5 General assembly arrangement
5.1 Assembly
For Type A, refer to Figure 1 and Table 1. For Type B, refer to Figure 2 and Table 2. For Type C, refer to
Figure 3 and Table 3.
For Type D, refer to Figure 4 and Table 4.
Dimensions in millimetres
Key
1 welding ring
2 drain screw
3 gasket
a
Inner side of bottom plate.
NOTE The extreme left and right sections represent hull plating.
Figure 1 — General arrangement for Type A
Table 1 — Parts list for Type A
Dimensions in millimetres
Part no. Part name Size
162
1 Welding ring
350
M42 × 2
2 Drain screw
M72 × 3
3 Gasket —
2
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ISO 5483:2023(E)
Key
1 welding ring
2 drain screw
3 gasket
a
Inner side of bottom plate.
NOTE The extreme left and right sections represent hull plating.
Figure 2 — General arrangement for Type B
Table 2 — Parts list for Type B
Dimensions in millimetres
Part no. Part name Size
8
1 Welding ring 15
22
M42 × 2
2 Drain screw
M72 × 3
3 Gasket —
Key
1 welding ring
2 drain screw
3 gasket
a
Inner side of bottom plate.
NOTE The extreme left and right sections represent hull plating.
Figure 3 — General arrangement for Type C
3
© ISO 2023 – All rights reserved

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ISO 5483:2023(E)
Table 3 — Parts list for Type C
Dimensions in millimetres
Part no. Part name Size
35
1 Welding ring 45
55
M42 × 2
M52 × 2
2 Drain screw
M62 × 2
M72 × 3
3 Gasket —
Key
1 welding ring
2 drain screw
3 gasket
a
Inner side of bottom plate.
NOTE The extreme left and right sections represent hull plating.
Figure 4 — General arrangement for Type D
Table 4 — Parts list for Type D
Dimensions in millimetres
Part No. Part name Size
35
1 Welding ring 45
55
M42 × 2
M52 × 2
2 Drain screw
M62 × 2
M72 × 3
3 Gasket —
4
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ISO 5483:2023(E)
5.2 Threads
For all types, the threads shall be accordance with ISO 68-1, ISO 261 and ISO 965-1, ISO 965-2 and
ISO 965-3.
NOTE A non-toxic anti-seize compound grease can be used on the thread surfaces.
5.3 Materials
The welding ring, drain screw and gasket materials shall be as given in Table 5. Other materials shall be
of equivalent quality and in all respects suitable for the intended purpose.
Table 5 — Material list for all types
Component Material Designation
Steel shall be of similar quality as surrounding
Welding ring Shipbuilding steel
tank bottom steel plating.
Stainless steel ISO 16143-1
Drain screw
Copper-aluminium alloy —
Polytetrafluoroethylene (PTFE) —
Chloroprene rubber Ballast tanks and fresh water tanks
Gasket
Lead Oil tanks
Red copper —
6 Mounting
6.1 Type A
For Type A mountings, see Figure 5 and Table 6.
5
© ISO 2023 – All rights reserved

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ISO 5483:2023(E)
Dimensions in millimetres
Key
1 welding ring
2 drain screw
3 gasket
a
Inner side of bottom plate.
Figure 5 — Type A mounting
Table 6 — Main dimensions for Type A assembly
Dimensions in millimetres
Size
Hole size of hull plate Thickness of hull plate
Type
D t
D 3
2
162 A-1 165 t ≤ 27,5
350 A-2 353 27,5 < t ≤ 38
6.2 Type B
For Type B mountings, see Figures 6, 7 and 8 and Table 7.
6
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ISO 5483:2023(E)
Dimensions in millimetres
Key
1 welding ring
2 drain screw
3 gasket
R3 dimension of the fillet, 3 mm
a
Inner side
...

DRAFT INTERNATIONAL STANDARD
ISO/DIS 5483
ISO/TC 8/SC 3 Secretariat: ANSI
Voting begins on: Voting terminates on:
2022-06-10 2022-09-02
Ships and marine technology — Drain facilities from oil
and water tanks
ICS: 47.020.30
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
This document is circulated as received from the committee secretariat.
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 5483:2022(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 2022

---------------------- Page: 1 ----------------------
ISO/DIS 5483:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/DIS 5483:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Designation . 1
4 General assembly arrangement . 2
4.1 Assembly . 2
4.2 Threads . 4
4.3 Materials . 5
5 Mounting. 5
5.1 Type A . 5
5.2 Type B . 6
5.3 Type C . 9
5.4 Type D . 10
5.5 General for all types . .12
6 Welding ring .12
6.1 Welding ring — Type A .12
6.2 Welding ring — Type B .13
6.3 Welding ring — Type C .15
6.4 Welding ring — Type D . 16
7 Drain Screws .18
7.1 For water tanks — Type A . 18
7.2 For water tanks — Type B . 18
7.3 For water tanks — Type C . 19
7.4 For water tanks — Type D . 21
7.5 For oil tanks — Type A .22
7.6 For oil tanks — Type B .22
7.7 For oil tanks — Type C.23
7.8 For oil tanks — Type D .25
8 Marking and location .26
8.1 Marking for Type A, Type B and Type C . 26
8.2 Marking for Type D .26
Annex A (Informative) Type of wrench .28
iii
© ISO 2022 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/DIS 5483:2022(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO was prepared by Technical Committee ISO/TC 8, Subcommittee SC 3.
This third edition cancels and replaces the second edition (ISO 5483:2003), which has been technically
revised.
iv
  © ISO 2022 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/DIS 5483:2022(E)
Introduction

v
© ISO 2022 – All rights reserved

---------------------- Page: 5 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 5483:2022(E)
Ships and marine technology — Drain facilities from oil
and water tanks
1 Scope
This international standard specifies the dimensions and materials for welding rings and drain screws
of drain facilities situated at the bottom of oil and water tanks.
Oil and water tanks occur as:
— built-in tanks, as an integrated part of the hull structure, and,
— detachable tanks, located in appropriate rooms and compartments.
This standard covers facilities for both instances.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 68, ISO general purpose screw threads — Basic profile
ISO 261, ISO general purpose metric screw threads — General plan
ISO 683-13, Heat-treatable steels, alloy steels and free-cutting steels — Part 13: Wrought stainless steels
ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general
purpose external and internal screw threads — Medium quality
ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general
purpose external and internal screw threads — Medium quality
ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general
purpose external and internal screw threads — Medium quality
ISO 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual
tolerance indications
3 Designation
For the purposes of this International Standard, four types of drain facilities are covered:
Type A, which is universally applicable, especially where flush mounting with the outer surface of hull
plating at plate thickness less than 38 mm;
Type B and Type C, which are usable in other instances where the Type A is not applicable;
Type D, which is used in jackup platforms, where flush mounting with the outer surface of hull plating.
NOTE Type A, B, C and D arrangements are identified by the following two categories of drain plugs:
— square wrench connection for water tanks, and
— hexagonal wrench connection for oil tanks.
1
© ISO 2022 – All rights reserved

---------------------- Page: 6 ----------------------
ISO/DIS 5483:2022(E)
4 General assembly arrangement
4.1 Assembly
For Type A, refer to Figure 1 and Table 1. For Type B, refer to Figure 2 and Table 2. For Type C, refer to
Figure 3 and Table 3.
For Type D, refer to Figure 4 and Table 4.
Dimensions in millimetres
Key
1 drain screw
2 welding ring
3 gasket
Note The extreme left and right sections represent hull plating.
Figure 1 — General arrangement for Type A
Table 1 — Parts list for Type A
Dimensions in millimetres
Part No. Part name Size
M42 x 2
1 Drain screw
M72 x 3
162
2 Welding ring
350
3 Gasket —

2
  © ISO 2022 – All rights reserved

---------------------- Page: 7 ----------------------
ISO/DIS 5483:2022(E)
Key
1 welding ring
2 drain screw
3 gasket
Note The extreme left and right sections represent hull plating.
Figure 2 — General arrangement for Type B
Table 2 — Parts list for Type B
Dimensions in millimetres
Part No. Part name Size
8
1 Welding ring 15
22
M42×2
2 Drain screw
M72×3
3 Gasket —

Key
1 welding ring
2 drain screw
3 gasket
Note The extreme left and right sections represent hull plating.
Figure 3 — General arrangement for Type C
3
© ISO 2022 – All rights reserved

---------------------- Page: 8 ----------------------
ISO/DIS 5483:2022(E)
Table 3 — Parts list for Type C
Dimensions in millimetres
Part No. Part name Size
35
1 Welding ring 45
55
M42×2
M52×2
2 Drain screw
M62×2
M72×3
3 Gasket —

Key
1 welding ring
2 drain screw
3 gasket
Note The extreme left and right sections represent hull plating.
Figure 4 — General arrangement for Type D
Table 4 — Parts list for Type D
Dimensions in millimetres
Part No. Part name Size
35
1 Welding ring 45
55
M42×2
M52×2
2 Drain screw
M62×2
M72×3
3 Gasket —
4.2 Threads
For all types, the threads shall be accordance with ISO 68-1, ISO 261 and ISO 965-1, ISO 965-2 and
ISO 965-3.
NOTE A non-toxic anti-seize compound grease may be used on the thread surfaces.
4
  © ISO 2022 – All rights reserved

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...

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