Gas Tight Doors
A60 Fire-Rated, Airtight and Gas-Tight Door Systems
Gas Tight Doors are specialised safety doors used in critical areas where fire resistance, airtightness and gas-tight performance are required together.
A60 fire-rated gas tight doors are designed to control the passage of fire, smoke, gas and air in ships, offshore facilities, industrial plants, technical rooms, energy facilities and security-critical compartments. They can be customised for each project with a steel or stainless steel body, sealing gaskets, robust hardware assemblies and optional accessories.
A60 Fire Resistance
Can be considered for applications requiring fire resistance in Class A divisions.
Gas and Airtightness
Designed for critical compartments where gas, air, smoke and external-environment transfer must be controlled.
Steel / Stainless Steel Body
Can be manufactured with painted steel or stainless steel body options according to the application area.
What Is a Gas Tight Door?
A gas tight door is a door system manufactured with specialised gaskets, locking mechanisms, frame and leaf construction to control leakage caused by gas, air, smoke, odours or pressure differences between two areas. In applications requiring fire resistance, it can be used with an A60 fire-rated door construction.
These doors are preferred in marine and ship applications, offshore platforms, energy facilities, technical rooms, security compartments, areas with gas risk and industrial environments requiring airtight or gas-tight separation.
Operating Principle of Gas Tight Doors
Sealed Body Construction
The door frame and leaf are designed with a rigid body structure to reduce gas and air transfer.
Gasket Compression Effect
When the door closes, perimeter sealing gaskets compress to limit the passage of air and gas.
Fire Resistance
In an A60 design, the door helps delay the spread of flames and heat between compartments during a fire.
Safe Access
Safe use is provided with door closers, door stops, locks and hinge hardware.
Key Technical Features
Can be considered for A60 fire-rated Class A division applications.
Special gasket system for critical areas requiring gas-tight and airtight performance.
Steel or stainless steel door leaf and frame options.
Single-leaf or double-leaf production options.
Door closer, door stop, vision panel leaf, specialised lock and hardware options.
Project dimensions, surface finish and hardware material can be customised according to the application.
Gas Tight Door Technical Information Table
| Technical Feature | Value / Option | Description |
|---|---|---|
| Product type | Gas-tight / airtight fire-rated door | Used for safe access and compartment sealing in critical areas. |
| Fire class | A60 | Can be considered for fire-rated Class A divisions. |
| Function | Fire resistance + gas tightness + airtightness | Provides multiple safety functions in one door. |
| Material | Steel / stainless steel | Selected according to corrosion, hygiene and site conditions. |
| Door leaf | Single-leaf or double-leaf | Determined according to required opening width and project needs. |
| Vision panel option | Optional | A glazed type can be applied for passages requiring visibility. |
| Optional accessories | Door closer, door stop, specialised lock, specialised hinge and hardware | Selected according to frequency of use and safety requirements. |
| Application area | Class A division, technical room, marine / offshore, industrial facility | Engineered according to gas, air, fire and environmental-resistance requirements. |
| Certificate / class | GL, DNV, CCS, BV, ABS, LR and similar compliance options | Must be evaluated according to project specifications and class requirements. |
| Dimensions and surface finish | Project-specific | Door dimensions, colour, surface finish and hardware details can be specified on request. |
Product Types
| Door Type | Description |
|---|---|
| A60 gas-tight fire-rated door | Used in critical compartments requiring both fire resistance and gas tightness. |
| A60 airtight door | Considered for technical rooms and compartments where air transfer must be limited. |
| A60 watertight steel door | Can be used in areas requiring watertightness and outdoor-environment resistance. |
| A60 double-leaf fire-rated steel door | Preferred in areas requiring a wide access opening. |
| A60 single-leaf fire-rated steel door | Provides a fire-rated door solution for standard access openings. |
Standards and Certification Assessment
A60 gas tight doors can be engineered in accordance with standards assessed against requirements such as IMO and SOLAS for maritime and industrial safety applications. Depending on the application area, class and certification requirements such as GL, DNV, CCS, BV, ABS and LR should be checked according to the project specification.
Assessed for fire and safety requirements in maritime applications.
Used for fire-rated Class A division door performance.
Class requirements such as GL, DNV, CCS, BV, ABS and LR are assessed on a project basis.
Application Areas
Advantages of Gas Tight Doors
Application Note
When selecting a gas tight door, the fire class, gas-tightness requirement, door dimensions, single- or double-leaf preference, body material, vision panel requirement, door closer or stop selection, lock and hinge hardware, class or certification requirement, surface finish and the structure of the installation compartment should be evaluated together.
Get Technical Support for Gas Tight Door Selection
Gas tight doors should be engineered according to fire resistance, tightness level, material, door dimensions, application area and class or certification requirements.
You can request a project-based technical assessment for gas tight door solutions for maritime, offshore, energy, oil and gas, and industrial safety applications.
