Marine Fuel and Lube Oil Centrifuges

Marine fuel and lube oil centrifuges (disc-stack separators) are used to remove water and solid contaminants before they reach high-wear components. Clean fuel supports injector and fuel-system reliability, while clean lube oil protects bearings, pumps, and other critical rotating equipment.

How Disc-Stack Centrifuges Clean Oil

Disc-stack centrifugation separates liquids and solids based on density differences by applying a controllable centrifugal force that can be far stronger than natural gravity. The disc stack increases separation area for faster, higher-accuracy separation, and solids handling can be manual, intermittent, or continuous depending on the duty and solids load.

Benefits for Fuel Oil Cleaning

Modern marine engines require fuel free of dirt and water. Alfa Laval notes that effective fuel cleaning helps reduce frequent filter changes, reduce unscheduled maintenance, and support maximum engine uptime, with disc-stack technology capable of removing very fine particles and water from fuel.

Benefits for Lube Oil Cleaning

Centrifugation is one of the few approaches that removes both water and solids in one operation. Alfa Laval describes lube oil centrifugation as directing cleaned oil back into the process while discharging water and retaining or discharging solids, with advantages that include minimal maintenance, prolonged equipment lifetime, and the ability to handle temporary high influxes of water.

Selection Guidance

For correct selection, define whether your primary need is fuel oil purification, lube oil purification, or both, then provide: target flow rate, oil type and viscosity/temperature range, contamination profile (water vs. solids), duty cycle, available installation space, and preferred solids-handling strategy (manual vs. self-cleaning discharge).

Support

SECO is a full-service distributor supporting marine separation equipment, including parts and service support for installed systems.