The Moatti 290 series represents the pinnacle of large-scale filtration technology, designed specifically for modular engine systems and high-output industrial plants. As the “big brother” in the Moatti family, the 290 series is engineered to handle massive flow rates while maintaining the precise micron efficiency required for the world’s most powerful engines.

The Modular Advantage: Scalability and Power
In large-scale marine and power generation installations, filtration systems must be as adaptable as the engines they protect. The Moatti 290 is designed for modular integration, allowing multiple filter units to be banked together to support ultra-large-bore engines.
- Extreme Flow Capacity: Engineered to manage significantly higher volumes of lube oil or fuel oil compared to smaller series, making it the primary choice for two-stroke and large four-stroke engines.
- Synchronized Back-Flushing: In modular setups, the 290 series can be synchronized to ensure that back-flushing cycles do not affect the overall system pressure, providing a rock-steady supply of clean fluid.
- Rugged Durability: The 290 elements are built with reinforced stainless steel disc stacks to withstand the hydraulic forces associated with high-capacity pumping systems.
Key Applications & Industry Use Cases
The Moatti 290 is the go-to filtration solution for “Heavy-Duty” environments where equipment downtime can cost thousands of dollars per hour.
1. Low-Speed Two-Stroke Engines
Found in the world’s largest container ships and tankers, these engines require massive quantities of clean lube oil. The 290 series is a staple for MAN B&W and WinGD (Wärtsilä) engine configurations.
2. Centralized Lubrication Modules
In large power plants or industrial manufacturing facilities, a single Moatti 290 installation can serve as a centralized “kidney loop” filtration system, cleaning the oil for an entire bank of machinery.
3. Heavy Fuel Oil (HFO) Treatment Plants
Used in land-based power blocks and fuel separation modules, the 290 series acts as a high-capacity protector, removing contaminants at the primary supply stage before the fuel even reaches individual engine units.
Technical Specifications
| Feature | Specification |
| Material | High-grade AISI 316L Stainless Steel |
| Filtration Ratings | 10µm, 15µm, 25µm, 34µm, and 48µm |
| System Compatibility | Modular “Bankable” Design |
| Cleaning Method | Full-Flow Automatic Hydraulic Back-Flushing |
Optimized Performance & Maintenance
To ensure the 290 series operates at peak efficiency within a modular system, we recommend:
- Differential Pressure Monitoring: In a modular bank, it is vital to monitor each unit individually. A deviation in one unit can indicate an uneven flow distribution or a mechanical issue with that specific disc stack.
- Annual Ultrasonic Deep-Cleaning: Due to the sheer volume of fluid processed, the 290 elements benefit significantly from an annual deep-clean to remove sub-micron buildup that standard back-flushing might miss.
- Genuine Disc Alignment: During maintenance, ensuring the disc stack is aligned to factory specifications is critical for maintaining the integrity of the back-flushing flow path.

