GB/T 3477-2023Marine weathertight single-leaf steel doors (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting:

This document replaces GB/T 3477-2008 "Single-leaf weathertight steel doors for ships": Compared with GB/T 3477-2008, except for structural adjustments in addition to editorial changes, the main technical changes are as follows:

---Added terms and definitions (see Chapter 3);

---Added door opening method (see Chapter 4);

---Changed the classification and marking of doors (see Chapter 5, Chapter 3 of the:2008 edition);

---Added Class C and D reinforced single-leaf weathertight door types (see 5.2:1, 5:2:5 and 5:2:6);

---Added single-handle linkage crimping and center-opening linkage crimping devices (see 5.2:8, 5:2:9);

---Changed the main material of the door (see 6.1, 4:1 of the:2008 edition);

---Added security requirements (see 6.6):

This document was drafted with reference to ISO 6042:2015 "Weathertight Single-leaf Steel Doors for Ships and Marine Technology", and the degree of consistency is not equivalent:

Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:

1 Scope

This document specifies the opening direction, classification and marking, structure and main dimensions of marine weathertight single-leaf steel doors (hereinafter referred to as weathertight doors):

dimensions, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage:

This document is applicable to the design, manufacture and inspection of weathertight doors for access to superstructures above the freeboard deck and deckhouses of all types of ships:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations for undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 700-2006 Carbon structural steel GB/T 712-2022 Structural steel for ships and offshore engineering GB/T 1220-2007 Stainless steel rods GB/T 8923.1-2011 Visual assessment of surface cleanliness of steel surface preparation before application of coatings Part 1: Uncoated the corrosion grade and treatment grade of the steel surface and the steel surface after the original coating has been completely removed HG/T 4903-2016 Dynamic fully vulcanized thermoplastic elastomer (TPV) EPDM/polypropylene type

3 Terms and definitions

There are no terms or definitions to be defined in this document:

4 Open direction

The opening direction of the weathertight door is shown in Figure 1:

a) Left opening b) Right opening Index symbol description:

a---hinge

Figure 1 Door opening direction