English Views: 100 Author: DEYUAN 041 Publish Time: 2025-12-31 Origin: Site
Marine fire doors are a key element of a vessel’s passive fire protection system. Installed at the boundaries of fire compartments, they are designed to prevent the spread of flames, hot gases and smoke from one space to another within a specified time, thereby protecting escape routes and buying critical time for crew evacuation and firefighting. By combining thermal insulation, structural integrity and smoke-tight performance, marine fire doors help ensure that fire and high temperatures are effectively contained within the affected compartment.
In practical applications, marine fire doors are generally composed of a door leaf, door frame, insulation core, sealing gaskets, locking and latching hardware, and door closing devices. The door leaf and frame are usually fabricated from steel or stainless steel, with the internal cavity filled with certified fire-resistant and insulating materials.
High-temperature-resistant seals are installed around the perimeter of the door to block smoke and hot gases, while certified hinges, locks and handles ensure reliable closing and secure latching under fire conditions. Many doors are also equipped with self-closing mechanisms, panic hardware, and viewing windows with fire-rated glass, forming a complete, integrated barrier that fulfills the fire-resistance rating required by SOLAS and relevant class rules.
1. Upgraded Fire Performance for Higher Safety Standards
The new generation marine fire doors adopt a multi-layer composite fire-resistant structure. The door leaf is filled with high-efficiency insulating materials. Fire tests conducted by accredited laboratories have confirmed that, within the specified fire-resistance period, the doors can effectively prevent flames and hot gases from spreading to adjacent compartments, securing valuable time for evacuation and emergency response. For A-60 rated products, the temperature rise on the unexposed side is significantly better than the limits set by the standards, providing reliable thermal insulation for high-risk areas such as main engine rooms and boiler rooms.
2. Optimized Structural Design, Combining Safety and Ease of Use
While meeting all fire resistance requirements, our product series incorporates multiple optimizations in structural design and ergonomics. It is equipped with a spring door closer and self-closing device to ensure reliable closure during fire emergencies. The door frames and leaves are constructed from high-strength steel, combined with high-temperature-resistant and aging-resistant sealing gaskets to enhance air tightness and smoke-tight performance. Available in various configurations—including single-leaf, double-leaf, with observation window, and with escape lock mechanisms—it offers flexible options for shipowners and design institutes based on compartment functionality. Additionally, threshold height and handle operating force have been ergonomically optimized to facilitate rapid crew passage in emergency situations.
3. Certified by Major Classification Societies for Global Applicability
The new series of marine fire doors obtained type approval and fire test certification from several renowned classification societies, including China Classification Society (CCS), DNV, Lloyd’s Register (LR) and American Bureau of Shipping (ABS).
This is a super-detailed Specification Sheet for reference (Sample Template – customize values as needed)：
1.General Information
Item | Specification / Description |
Product Name | Marine Fire Door |
Door Type | A-60 / A-30 /A-0/ B-15 / B-0 (select as applicable) |
Structural Type | Single-leaf / Double-leaf / Sliding / Watertight (if any) |
Installation Position | Engine room / Accommodation / Corridor / Stairway / Control room / External bulkhead |
Compliance&Standards | SOLAS, IMO FTP Code, FSS Code |
Classification Approvals | CCS / DNV / LR / ABS / BV / RINA / NK |
Certificate Type | Type Approval Certificate / Fire Test Report |
2. Dimensions & Configuration
Item | Specification / Description |
Clear Opening Size (W × H) | ____ mm × ____ mm |
Structure Size (W × H) | ____ mm × ____ mm |
Door Leaf Thickness | ____ mm |
Frame Depth | ____ mm |
Number of Leaves | Single / Double |
Opening Direction | Left-hand / Right-hand, Inward / Outward |
Installation Type | Welded frame / Bolted frame / Clamp type |
Threshold Type | Raised sill / Flat sill / None (flush threshold) |
Door Weight (approx.) | ____ kg (per leaf) |
3. Fire Performance
Item | Specification / Description |
Fire Rating | A-60 / A-30 / B-15 (per IMO FTP Code) |
Integrity Duration (EI) | ____ minutes (according to test report) |
Insulation Performance | Back side temperature rise within standard limits |
Smoke Tightness | Complies with class rules / tested as smoke-tight door |
Test Standard | IMO 2010 FTP Code, Part 3 (or applicable version) |
Test Laboratory | Name of accredited laboratory |
Test Report No. | _________________________ |
4. Materials & Construction
Item | Specification / Description |
Door Leaf Material | Steel / Stainless steel (Grade: e.g. A36 / SUS304) |
Door Frame Material | Steel / Stainless steel (Grade: e.g. A36 / SUS304) |
Core Insulation Material | Mineral wool / Ceramic fiber / Other fire-rated material |
Surface Finish | Shop primer / Epoxy paint / PU topcoat / Stainless finish |
Standard Color | RAL ______ or as per project requirement |
Corrosion Protection | Marine-grade coating system / Hot-dip galvanizing (if any) |
Gasket / Seal Material | High-temperature resistant rubber / Intumescent seal |
Welding Standard | As per shipyard / class requirements |
5. Hardware & Accessories
Item | Specification / Description |
Hinges | Heavy-duty marine hinges, quantity: ____ pcs |
Lock / Latch | Marine lock set, cylinder or latch type, from ____ brand |
Handle | Inside & outside lever handles / Panic bar (if required) |
Door Closer | Overhead closer / Spring hinge / Integrated self-closer |
Hold-open Device | Mechanical / Electromagnetic (fail-safe, if fire linked) |
Kick Plate | Stainless steel / None |
Threshold Cover | Stainless steel / Painted steel / None |
Gasket Arrangement | Continuous around frame + bottom seal / Brush seal |
Emergency Release | Inside emergency release / Panic hardware (for escape) |
6. Vision Panel (if applicable)
Item | Specification / Description |
Vision Panel Size | ____ mm × ____ mm |
Glass Type | Fire-rated glass / Wired glass / Double glazing |
Fire Rating of Glass | Same as door rating (A-60 / A-30 / B-15) |
Glass Thickness | ____ mm |
Frame Material | Steel / Stainless steel |
Protection Grid | Internal mesh / None |
7. Options & Special Requirements
Item | Specification / Description |
Insulation Level | Enhanced thermal insulation / Standard |
Acoustic Performance | Sound reduction: ____ dB (if tested) |
Explosion-proof Design | EX-rated hardware / structure (if required) |
Watertight / Weather-tight | With gaskets & dogs / Not required |
Integration with Alarm System | Door status switch / Fire-alarm linkage / Central monitoring |
Markings & Labels | IMO safety signs / “FIRE DOOR – KEEP CLOSED” / Custom text |
Special Color / Coating | As per shipowner specification |
Other Custom Features | ______________________________ |
8. Installation & Maintenance
Item | Specification / Description |
Installation Method | Welded / Bolted, according to approved drawings |
Supplied Documentation | Installation manual, Certificates, Test reports, QA docs |
Recommended Maintenance | Regular inspection of hinges, closers, gaskets & coating |
Spare Parts | Hinges, seals, closers, locks available on request |
Warranty Period | ____ months / ____ years from delivery |
To receive a tailored quotation, please get in touch with our planning team.
