ISO 17941:2015

INTERNATIONAL ISO
STANDARD 17941
First edition
2015-03-01
Ships and marine technology —
Hydraulic hinged watertight
fireproof doors
Navires et technologie maritime — Portes étanches incombustibles à
charnières hydrauliques
Reference number
©
ISO 2015
© ISO 2015
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ii © ISO 2015 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Classification and designation . 1
3.1 Types. 1
3.2 Structure and main dimensions . 2
3.3 Manual hydraulic and electric-hydraulic system schematic diagram . 4
3.4 Electrical system diagram . 5
3.5 Designation . 5
4 Requirement and inspection . 5
4.1 Material . 5
4.2 Appearance . 5
4.3 Welds . 6
4.4 Heat Treatment . 6
4.5 Anti-corrosion. 6
4.6 Tightness . 6
4.6.1 Degrees of contact . 6
4.6.2 Water pressure . 6
4.7 System. 6
4.8 Control . 6
4.9 Flexibility . 7
4.10 Alarm . 7
4.11 Status indication . 7
4.12 Inclination test . 7
4.13 Fire resistance . 8
5 Marking, packaging, transport, and storage . 9
5.1 Marking . 9
5.2 Packaging . 9
5.3 Transportation and storage . 9
Annex A (informative) Watertight door’s hydraulic system schematic diagram .10
Annex B (informative) Watertight door’s electrical system schematic diagram .11
Foreword
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bodies (ISO member bodies). The work of preparing International Standards is normally carried out
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electrotechnical standardization.
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different types of ISO documents should be noted. This document was drafted in accordance with the
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The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee
SC 8, Ship design.
iv © ISO 2015 – All rights reserved

Introduction
Fire-proof doors shall comply with the requirements of IMO FTP-code. The standard provides reference
for design, manufacturing and inspection of hydraulic watertight hinged fireproof doors, so it is not
imperative for shipyards to implement the standard.
INTERNATIONAL STANDARD ISO 17941:2015(E)
Ships and marine technology — Hydraulic hinged
watertight fireproof doors
1 Scope
This International Standard specifies classification and designation, requirements, test method,
marking, packaging, transport, and storage of hydraulic watertight hinged fireproof doors (hereinafter
referred to as “watertight doors”).
This International Standard is applicable to the design, manufacture, and acceptance of hydraulic
watertight hinged fireproof doors with water pressure not more than 1,0 MPa used for ships, other
floating structures and ocean engineering.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 3796, Ships and marine technology — Clear openings for external single-leaf doors
ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual
assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates
and of steel substrates after overall removal of previous coatings
IEC 61162-1:2010, Maritime navigation and radio communication equipment and systems — Digital
interfaces — Part 1: Single talker and multiple listeners
AWS D1.1/D1M:2008, Structural Welding Code — Steel
IMO Resolution MSC.302 (87), Adoption of performance standards for Bridge Alert Management
3 Classification and designation
3.1 Types
3.1.1 Depending on the opening direction, watertight doors shall be classified into two types (see Figure 1):
— Type R-Right-hand watertight door (the hinge stays right when the door opens towards the observer);
— Type L-Left-hand watertight door (the hinge stays left when the door opens towards the observer).
R
L
1 1
Key
1 hinge
L left-hand door
R right-hand door
Figure 1 — Opening directions
3.1.2 According to the fire-protection rating, watertight doors shall be classified into four levels: A-60,
A-30, A-15, and A-0.
3.2 Structure and main dimensions
3.2.1 The structure and main dimensions of watertight doors shall be in accordance with Table 1
and Figure 2. The nominal size, L × B, of watertight doors is denoted by reference to the clear opening
according to ISO 3796. Watertight doors of other dimensions can be provided upon agreement between
manufacturer and purchaser.
Table 1 — Main dimensions for watertight door
Dimensions in millimetres
Nominal size Opening in the bulkhead plate Door frames
L × B L B L B
1 1 2 2
1 200 × 600 1 340 740 1 480 880
1 400 × 600 1 540 740 1 680 880
1 400 × 750 1 540 890 1 680 1 030
1 400 × 900 1 540 1 040 1 680 1 180
1 600 × 600 1 740 740 1 880 880
1 600 × 750 1 740 890 1 880 1 030
1 600 × 900 1 740 1 040 1 880 1 180
1 800 × 750 1 940 890 2 080 1 030
1 800 × 900 1 940 1 040 2 080 1 180
The tolerance is as follows:
— Nominal size: mm;
−2
+2
— Opening in the bulkhead
...