- The International Maritime Organization (IMO) proposes amending the Fire Safety Systems (FSS) Code to address inconsistencies in gasket construction requirements across different IMO regulations.
- The amendment would exempt gaskets in fire-extinguishing systems from the current 925°C melting point requirement, aligning with other IMO instruments and practical safety considerations.
- This amendment will simplify compliance, standardize regulations, and maintain safety without additional hazards if adopted.
The International Maritime Organization (IMO) is addressing inconsistencies in gasket construction requirements in its Fire Safety Systems (FSS) Code. A new proposal aims to clarify these requirements by exempting gaskets in fire-extinguishing systems from the high melting point mandate. This initiative reflects the need for regulatory clarity while maintaining safety standards, reports Marine Regulations.
Existing Inconsistencies in the FSS Code
Currently, the FSS Code requires all components, including gaskets, in fire-extinguishing systems to have a melting point above 925°C.
However, other IMO instruments, such as Chapter 6 of the FSS Code and circulars MSC.1/Circ.1315/Rev.1 and MSC.1/Circ.1430/Rev.3, explicitly exclude gaskets from this requirement.
This inconsistency has caused confusion and operational challenges, prompting calls for regulatory alignment.
The Case for Exempting Gaskets
The proposal argues that gaskets are not critical to the structural integrity of fire-extinguishing systems under high temperatures. Even with a lower melting point, gaskets maintain their functionality during operation.
Moreover, any heat-induced gasket failure would occur after the intentional release of extinguishing gas, posing no additional hazards.
Proposed Amendment to the FSS Code
The proposed amendment to paragraph 2.1.2.5 of the FSS Code explicitly exempts gaskets from the 925°C melting point requirement.
The revised text would read:
“All discharge piping, fittings, and nozzles in the protected spaces (except gaskets) shall be constructed of materials with a melting temperature exceeding 925°C. The piping and associated equipment shall be adequately supported.”
This change would apply to new and existing ships, ensuring uniform compliance across the maritime industry.
Next Steps for Implementation
The Maritime Safety Committee (MSC) has recognized the importance of this amendment and included it in its agenda for 2026–2027.
The SSE Sub-Committee will review the proposal during its 12th session (SSE 12) in 2026, deliberating on its technical and safety implications before finalizing the amendment.
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Source: Marine Regulations
