Hydraulic control oil filtration
ME two-stroke engines from MAN Energy solutions (MAN ES) use high-pressure hydraulic oil to actuate fuel injection and exhaust valves. To protect against contaminants and debris, the hydraulic control oil (HCO) requires very fine filtration. Self-cleaning Alfa Laval Moatti HCO filters, which are fully validated by MAN ES, combine advanced filter elements with a simple and proven filter design. This lets them deliver reliable, clog-free operation for uninterrupted engine performance.
Proven, non-clogging protection for the hydraulic control oil system
- Efficient 6-micron filtration with superior redundancy
- Changeover valve for easy maintenance while the engine is running
- Hydraulically driven – no pumps or electrical connections
- Compact design for simple and cost-effective installation (CAPEX)
- Minimized energy consumption and spare part costs (OPEX)
The propulsion engine landscape is evolving due to strict IMO emission regulations. MAN ES has responded with the ME two-stroke engine range, whose operation relies on hydraulic control oil. Alfa Laval Moatti HCO filters are validated to protect all ME-C engines, including dual-fuel configurations using methanol or ammonia.
Moatti HCO filters provide the consistent 6-micron filtration that hydraulic control oil requires – without clogging or excessive maintenance. The innovative filter elements create a large filtering area within a compact design, while an improved distribution system enhances efficiency. This enables continuous backflushing with no pressure drop.
Thanks to their small footprint and single hydraulic connection, self-cleaning Moatti HCO filters are ideal for new engines but also as problem-solving retrofits. From installation to operation, they make peace of mind both simple and cost-effective.
Products
Why make the switch to Moatti HCO filters?
There are good reasons to choose Moatti HCO filters over other filters for hydraulic control oil. Alfa Laval’s filter technology advances performance without abandoning tried-and-true filter principles. That means savings, flexibility and peace of mind – both up front and over the long term.
Reasons for manufacturers and shipyards
Available in various sizes, Moatti HCO filters provide the best ratio of footprint to filtering surface on the market. That fact – plus their compact design overall – makes them a cost-effective fit for any size of engine.
Yet size isn’t all that impacts your investment. Through reduced filter complexity, you can save time, effort and money. Moatti HCO filters are hydraulically driven, which means a single connection instead of many. Without electricity, marine-certified cables, compressed air or related piping, they allow straightforward and economical installation.
Better still, the low complexity means less that can go wrong for your customers. So your risk of claims is lower as well.
Reasons for shipowners and operators
The HCO filter is a fraction of your engine’s cost. But if it doesn’t perform as promised, the ongoing costs add up – especially if it clogs. When you have to stop the engine, it interrupts your business too.
With Moatti HCO filters, you can be sure of constant filter performance, even while using the changeover valve for maintenance. The fully automatic backflushing eliminates cartridge checks, and both chambers deliver the required 6-micron filtration.
Thanks to durable, long-lasting filter discs, Moatti HCO filters consume fewer spare parts. Needing no electricity or compressed air, they use less energy as well. Hydraulically operated and utterly reliable, they simply mean lower costs, year after year.
Advantages for HCO filter maintenance
Moatti HCO filters feature a changeover valve and superior redundancy, which makes maintenance simple and worry-free. But their unique design also reduces maintenance costs. In this insightful video, Joseph Olsson, one of our filter experts, explains why Alfa Laval technology means greater reliability and lower cost of ownership for the hydraulic control oil treatment system.
High-efficiency HCO filtration
Moatti HCO filters deliver ultra-fine particle filtration with virtually no pressure drop. The secret is their innovative Alfa Laval Atrium technology, which offers the market’s best ratio of footprint to filtering surface. The redundant insert, which has even higher performance, is activated by a changeover valve for oil polishing or continuous operation during maintenance.