Marine Environmentally Acceptable Lubricants (EALs) are biodegradable, non-toxic oils used in ships to minimize ecological harm. These lubricants meet strict environmental standards, reducing pollution risks in aquatic ecosystems. Lubrication systems for EALs ensure efficient performance while complying with marine environmental regulations.

Key specifications and technical properties of Marine Environmentally Acceptable Lubricants (EALs) and Lubrication Systems:

Size: Varies based on application (e.g., small gearboxes to large stern tubes).

Grade: ISO VG 68, 100, 150, 220, 320, 460, 680 (common for marine applications).

Viscosity: Typically ranges from 68 to 680 cSt at 40°C, depending on equipment requirements.

Buoyancy: Generally neutral to slightly buoyant, depending on base oil (e.g., synthetic esters, vegetable oils).

Material: Biodegradable base oils (e.g., polyalkylene glycols, synthetic esters, vegetable oils) with additive packages for oxidation stability, anti-wear, and corrosion resistance.

Biodegradability: ≥60% (OECD 301 standards) for environmentally acceptable classification.

Toxicity: Low aquatic toxicity (passing EPA VGP or similar regulations).

Flash Point: Typically >200°C for fire safety.

Pour Point: Ranges from -15°C to -40°C for cold-weather performance.

Water Content: <0.1% to prevent emulsion formation.

Lubrication Systems: Centralized or standalone systems with filtration, cooling, and monitoring for stern tubes, thrusters, and hydraulic systems.