Westfalia OSA 20 is a high-speed self-cleaning disc stack centrifuge designed for efficient oil purification and liquid-liquid-solid separation in marine and industrial applications.
The Westfalia OSA 20 Self-Cleaning Disc Stack Separator, manufactured by GEA Westfalia Separator, is a high-performance centrifugal system engineered for continuous separation of oils, water, and solid contaminants.
This model features a self-cleaning (automatic desludging) disc stack bowl, enabling uninterrupted operation with minimal manual intervention. The advanced disc stack design maximizes separation efficiency by increasing the effective settling area, allowing rapid and precise separation of phases with different densities.
The OSA 20 is widely used in marine engine rooms, power plants, and industrial facilities where maintaining clean fuel and lubricating oil is critical. It effectively removes water, sludge, catalytic fines, and impurities, improving equipment life and operational efficiency.
Its pressure-tight construction, hermetic feed system, and high-speed rotating bowl ensure safe, reliable, and contamination-free processing. The separator is designed for 24/7 continuous duty, making it ideal for demanding environments.
Technical Specifications
Model: OSA 20 (Variants: OSA 20-02-066, OSA 20-36-066, etc.)
Type: Self-cleaning disc stack centrifuge
Separation Type: 3-phase (liquid-liquid-solid)
Bowl Speed: Approx. 7,500 RPM
Motor Speed: ~1745 RPM
Motor Power: ~11 kW (≈15 HP)
Frequency: 50 / 60 Hz
Bowl Type: Self-cleaning disc stack bowl
Sludge Discharge: ავტომatic / periodic ejection
Drive Type: Direct / flange-mounted motor
Sludge Holding Capacity: ~4.2 dm³
Construction: Pressure-tight design
Operation: Continuous duty
Key Features
Self-cleaning automatic sludge discharge system
High-speed centrifugal separation for superior efficiency
Continuous operation with minimal downtime
Hermetic and pressure-tight design prevents contamination
Robust industrial construction for long service life
Reduced maintenance compared to manual separators
Applications
Marine fuel oil purification (MDO, MGO, HFO)
Lubricating oil cleaning for engines and gearboxes
Biodiesel and fuel processing
Waste oil recycling
Power plant and industrial oil systems
Hydraulic and transformer oil purification
The OSA 20 is especially valuable in industries where clean oil is critical for machinery reliability, helping reduce wear, improve efficiency, and extend equipment life.
