Lifebuoy · Rescue & Recovery Equipment
The Shanghai Martian Ship Equipment Co., Ltd. 2.5-HX5556 is a SOLAS/MED-type lifebuoy and should be classified as lifesaving equipment rather than general interior material. It is a rigid buoyant ring carried at designated positions around the ship for immediate use when a person falls overboard. The lifebuoy is fitted with a grabline and retro-reflective material and may be installed at a station that also carries a self-igniting light or other approved position-indicating equipment. Its purpose is to provide flotation quickly without requiring the casualty to enter or inflate another appliance. The 2.5-HX5556 designation distinguishes this buoy from related heavier or differently configured lifebuoys in the manufacturer's range. Ship name and port markings, where required by the vessel's statutory regime, form part of the operational identification. The actual station equipment must match the approved lifesaving plan because not every lifebuoy position has the same attached light, smoke or release arrangement.
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What our service work and the manufacturer documentation say about keeping this model running.
Inspect the lifebuoy under the vessel's lifesaving-appliance PMS and statutory inspection regime. Check the shell, buoyant body, grabline, retro-reflective material, markings and any attachment points without painting over approval identification. Confirm the buoy is free to release immediately from its stowage and that associated light or smoke equipment, where fitted, is correctly connected and within its own service requirements. Replace a damaged buoy rather than attempting an unapproved structural repair to the shell or buoyant material. Dimensions, mass, buoyancy criteria and accessory requirements should be verified from the certificate, SOLAS/LSA requirements and manufacturer documentation for the exact unit.
| Visual inspection | monthly, as part of routine LSA rounds |
|---|---|
| Detailed inspection including light/smoke signal battery check | annually, per the LSA survey cycle |
| Replacement | per SOLAS/manufacturer-stated service life or on condition, whichever comes first |
Product identification note: the DNV MED certificate and description identify this item as a lifebuoy (Life-Saving Appliance), not an interior/construction material as categorized here. Lifebuoys are LSA items surveyed under SOLAS Ch. III / LSA Code - quantity, marking, reflective tape, and any associated lights or smoke signals are checked at each annual and renewal survey.
The lifebuoy itself is normally replaced as a complete approved unit rather than rebuilt onboard. Useful supporting spares include approved grabline material or complete replacement grabline assemblies, correct retro-reflective material, station brackets and compatible approved lights or smoke signals where the vessel carries them. Do not fit accessories that alter the release or required mass characteristics of a statutory lifebuoy station without confirming approval.
Verified against the DNV Approval Finder — the certificate below is issued by DNV, not by us.
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