Alfa Laval Moatti Filter Element Replacement
Keep your machinery running at peak efficiency with premium-grade replacement filter elements for Alfa Laval Moatti automatic backwash filters. At Source Filtration, we provide precision-engineered filter discs that meet or exceed OEM specifications, ensuring continuous protection for your engines and hydraulic systems.
Why Choose Source Filtration for Moatti Replacement Elements?
When it comes to automatic self-cleaning filters, precision is everything. Our Moatti-compatible filter elements are designed for durability, high flow rates, and absolute filtration accuracy.
- 100% Interchangeable: Guaranteed fit for Moatti FM and Lube Oil filter series.
- Superior Material Quality: Constructed from high-grade stainless steel mesh for corrosion resistance.
- Reduced Operational Costs: High-strength design allows for more cleaning cycles and longer service life.
- Global Shipping: Fast turnaround times to minimize your vessel or plant downtime.
Our Moatti Filter Product Range
We stock a comprehensive range of filter discs and elements compatible with various Alfa Laval Moatti models. Whether you are performing routine maintenance or an emergency overhaul, we have the parts you need.
Moatti Filter Discs
Our replacement discs are engineered with precise micron ratings to capture contaminants effectively without causing significant pressure drops.
- Available Micron Ratings: 10µm, 15µm, 25µm, 34µm, 40µm, and more.
- Applications: Lube oil systems, fuel oil filtration, and cooling water.
Premium Filter Discs & Elements for Moatti Automatic Back-Flushing Systems
We provide high-performance, 100% interchangeable filter discs for the entire range of Moatti (Alfa Laval) automatic filters.
Moatti 150/152 Series | Fuel Protection
Optimized for 4-Stroke & Small 2-Stroke Engines.
Our high-precision filter discs for the 152 series are engineered to trap harmful cat fines and contaminants in fuel oil systems. They ensure peak engine performance and stability, providing a robust defense for your fuel injection components.
Moatti 180 Series | Compact Efficiency
Fine Filtration with Minimum Pressure Drop.
Designed for the most compact Moatti systems, our replacement elements maintain a high filtration area within a small footprint. We provide stainless steel mesh discs that deliver ultra-fine filtration without compromising flow rates or system pressure.
Moatti 240 Series | High-Speed Performance
The Ultimate Solution for Trunk Piston Engines.
Specifically crafted for the lightweight Moatti 240, our filter elements are the perfect high-durability alternative to traditional spin-on cartridges. They offer a permanent, back-flushable solution that significantly reduces maintenance waste and OPEX.
Moatti 290 Series | Modular Versatility
Precision-Engineered for Atrium Technology.
The 290 series requires precise disc spacing and alignment for its modular self-cleaning action. Our elements are manufactured to exact OEM tolerances, ensuring seamless integration with original Atrium technology for both lube and fuel oil applications.
Moatti 350 Series | Heavy-Duty Power
Full-Flow Lubrication for Large-Scale Engines.
For medium-speed trunk piston and large crosshead engines, we supply heavy-duty filter discs capable of handling massive oil volumes. These elements are built to withstand the hydraulic drive pressures of the 350 range while ensuring continuous, clean lubrication.
Fuel & Lube Oil Solutions | Universal Support
Comprehensive Range for All Moatti Configurations.
Beyond specific models, we provide a complete catalog of filter mesh and disc stacks for various Moatti automatic back-flushing units. Whether it’s HFO, MGO, or system lube oil, our elements guarantee 100% compatibility and reliable engine protection.
All our filter elements are designed to be 100% interchangeable with original Moatti / Alfa Laval parts, offering equivalent performance at a competitive cost.
Moatti Filter Size & Model Mapping
Quick Technical Reference for Moatti-Compatible Filter Elements
The following mapping provides critical dimensions and compatibility for the primary Moatti series used in maritime and industrial applications. These replacement elements are designed to be fully compatible with Alfa Laval Moatti systems.
| Filter Series | Application Models | Outer Diameter (OD) | Inner Diameter (ID) | Component Types |
| Moatti 150 | FM152DE, Type 150D | 150 mm | 100 mm / 78 mm | Full-flow & Diversion |
| Moatti 240 | Type 240 | 240 mm | 132 mm | Full-flow element |
| Moatti 280 | XL280D, T280D-25 | 280 mm | 172 mm / 171 mm | Full-flow & Diversion |
| Moatti 290 | Type 290 A20 to 40 | 290 mm | 160 mm | Full-flow element |
| Moatti 350 | Type 350 | 350 mm | 200 mm | Full-flow element |
Technical Selection Guide (By Part Code)
To ensure precise engine protection, replacement elements must be matched to the specific Moatti filtering codes which dictate the absolute and nominal micron ratings.
Standard Filtering Codes & Fineness
- Code A06: 40 µm Absolute / 25 µm Nominal.
- Code A08: 50 µm Absolute / 35 µm Nominal.
- Code A03: 25 µm Absolute / 10 µm Nominal.
- Code A05: 35 µm Absolute / 20 µm Nominal.
- Code A07: 45 µm Absolute / 30 µm Nominal.
Ref Article Numbers for 280 Series
- Full-flow Sets: 1800-10537 (A06), 1800-10544 (A08), 1800-19305 (A03), 1800-19316 (A05).
- Diversion Sets: 1800-10555 (A011), 1800-19355 (A016).
Ref Article Numbers for 150 Series
- Full-flow Sets: 1800-09480 (A01), 1800-09456 (A03), 1800-09081 (A05).
- Diversion Sets: 1800-10516 (A05), 1800-10520 (A09).
- Absolute (Mesh Size): This refers to the physical mesh size, specifically the diameter of the largest hard spherical particle that can pass through the filter mesh.
- Nominal: This is an efficiency-based rating indicating that 85–90% of all particles with a diameter larger than the specified figure are successfully retained by the filter.
Source Filtration Blog
Insights, technical guides, and industry knowledge on oil filtration, engine protection, and Moatti systems.
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Moatti Full-Flow vs. Diversion Filter Elements: In-depth Comparison
Read More: Moatti Full-Flow vs. Diversion Filter Elements: In-depth Comparison -
Guide to Moatti Filter Models: Fuel, Lube Oil & Elements
Read More: Guide to Moatti Filter Models: Fuel, Lube Oil & Elements -
What is a Filter Element for Moatti Filters?
Read More: What is a Filter Element for Moatti Filters? -
Alfa Laval Moatti Diversion Elements: A Buyer’s Guide
Read More: Alfa Laval Moatti Diversion Elements: A Buyer’s Guide
Frequently Asked Questions
What is the difference between Full-Flow and Diversion Moatti filter elements?
Full-flow filter elements are designed to handle the entire volume of fluid (lube oil or fuel) entering the engine, ensuring every drop is filtered to the required micron rating. Diversion (or bypass) elements handle a smaller percentage of the flow, typically providing finer filtration for a subset of the oil to maintain overall system cleanliness.
How do I properly clean a Moatti filter element for reuse?
While these filters are “self-cleaning” via backwash, manual cleaning is required during major overhauls.
- Step 1: Use an ultrasonic bath with a specialized carbon-removing detergent.
- Step 2: Rinse with clean diesel or a compatible solvent.
Note: If the stainless steel mesh shows signs of fraying, “blinding” (permanent clogging), or mechanical deformation, the element must be replaced to prevent pressure drops or unfiltered bypass.
What micron ratings are available for Moatti replacement discs?
We offer a wide range of filtration fineness to suit specific engine requirements, typically ranging from 10µm to 50µm. The most common marine lube oil applications utilize 25µm or 34µm absolute mesh. Our discs use high-grade 316L stainless steel wire cloth to ensure the micron rating remains consistent even under high pressure.
Can your elements be used as direct replacements for Alfa Laval Moatti part numbers?
Yes. Our elements are precision-engineered to be 100% interchangeable with Alfa Laval Moatti OEM numbers. Our cross-reference database includes common series such as the 150, 240, 280, and 320. You can replace individual discs or the entire stack without any modification to the filter housing.
In which application scenarios are Moatti filter discs most commonly used?
Moatti automatic backwash filters are the industry standard for high-stakes environments, specifically:
- Industrial Hydraulics: Providing continuous filtration for heavy-duty machinery where downtime is not an option.
- Marine Propulsion: Protecting 2-stroke and 4-stroke engines (MAN B&W, Wärtsilä).
- Power Plants: Filtering fuel and lube oil for large-scale diesel generators.
How often should Moatti filter elements be replaced?
While the backwashing mechanism extends the life of the discs, they are considered wear parts. We recommend a full inspection every 6,000 to 8,000 operating hours. If the pressure differential remains high even after a backwash cycle, it usually indicates that the mesh is saturated with fine contaminants (fines) that cannot be removed, signaling it’s time for a replacement.
Ready to Optimize Your Filtration System
Don’t risk engine damage with inferior filtration. Partner with Source Filtration for reliable, high-performance Moatti filter element replacements.