The Emmie comprises a trolley-mounted centrifugal separator and electrical oil heater for use on ships. Moved between marine hydraulic systems, it removes water and 99% of all 2-5 μm particles from oil, increasing oil service life and system reliability.

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Increase marine hydraulic system reliability

The Alfa Laval Emmie is a portable marine hydraulic oil cleaning system that effectively cleans hydraulic oil, removing both 99% of all 2 - 5 μmparticles and 100% of the free water from oil used in hydraulic systems onboard ships. It meets the requirements for hydraulic oil cleaning in accordance to ISO Cleanliness Code 4406:1999 13/11/8.

Designed for use in systems such as CP propellers, steering gear and other marine hydraulic machinery, the Emmie consists of a disc-stack centrifugal separator, which can operate in purifier mode and clarifier mode, and an electrical oil heater. By prolonging the service life of marine hydraulic oils, the Emmie increases uptime, minimizes wear on maritime hydraulic equipment and reduces costs. In doing so, this portable ship hydraulic oil cleaning system generally pays for itself in less than a year.

Easy-to-use ship hydraulic oil cleaning system

Lightweight and compact, the Alfa Laval Emmie is easy to use and does not require any alterations to marine hydraulic machinery. Connecting the Emmie to a hydraulic oil tank takes just a few minutes. Then simply start the separator, start the pump and, after the oil flows through, start the heater. With its straightforward plug-and-play operation, the Emmie mobile marine hydraulic oil cleaning system cleans the oil at a flow rate of 80 - 120 l/h. No supervision is required once the system has started.

Extended service lifetime

The Alfa Laval Emmie effectively removes any water, airborne dust and particles from wear on paint, metal, plastic or rubber from marine hydraulic oils. By removing water from the oil, the Emmie prevents system corrosion as well as oxidation and subsequent decomposition of oil additives, which reduce oil service lifetime. This not only prolongs the service lifetime of marine hydraulic oil, but also reduces oil consumption and costs.

In addition, by removing the particles from the oil, the Emmie prolongs the service lifetime of hydraulic systems. Cleaner oils translate into more uptime – with fewer unscheduled production stops and fewer breakdowns due to solid particles that cause wear on parts and can clog equipment.

Reduced costs

Due to prolonged intervals between filter and oil replacements, the Emmie drastically cuts operating and maintenance costs, including those related to the purchase of new hydraulic oil and the disposal of used filter cartridges and used oil.


Composants système

Le système mobile Alfa Laval Emmie de nettoyage de l'huile marine comprend : un séparateur centrifuge à pile d'assiettes à entraînement direct avec deux jeux de bol ; chariot avec pompe à vis intégrée, cuve de collecte, démarreurs,séparateur et pompe, manomètre, pressostat bas/défaut anneau d'étanchéité ; préchauffeur d'huile électrique avec volume d'occupation d'un litre ; et flexibles hydrauliques standard avec raccords rapides.

Principe de fonctionnement

On peut implanter le séparateur centrifuge Alfa Laval Emmie comme un purificateur ou comme un clarificateur.

Le mode purificateur est recommandé lorsque l'huile est lourdement contaminée avec de l'eau car il offre une suppression continue de l'eau. Dans ce cas, la force centrifuge projette toutes les matières solides présentes dans l'huile à la périphérie contre les parois du bol ; les matières solides accumulées sont retirées périodiquement à la main. L'eau est éjectée en continu par le bas du bol.

En mode clarificateur, la sortie d'eau est bloquée. Ce mode est recommandé lorsque l'huile ne contient que des traces d'eau ou pas d'eau du tout à cause des capacités limitées de traitement de l'eau.