A coalescence separation oil filter is designed to remove free water, emulsified water, gas, and solid contaminants from industrial oils. This system is widely used in power plants, steel factories, hydraulic stations, wind power systems, marine equipment, mining machinery, and transformer maintenance applications.
- Effectively removes emulsified water, free water, and solid contaminants
- Reduces water content to below 100 PPM and improves oil cleanliness to NAS 6 or higher
- Combines precision filtration with high-efficiency coalescing dehydration technology
- High filtration accuracy and large dirt holding capacity
- Long filter element service life with reduced maintenance requirements
- No heating, vacuum, or high-speed centrifugal system required
- Lower energy consumption and operating costs
- Maintains original oil properties while extending oil service life
- Equipped with filter replacement alarm and overload protection
- Supports remote alarm transmission
- PLC automatic control for unattended continuous operation
- Suitable for large-capacity and continuous industrial oil purification.
To effectively solve the problem of excessive water contamination in steam turbine hydraulic systems, governing systems, and lubrication systems, ZANYO adopts advanced international coalescence separation dehydration technology to develop the coalescence separation oil filtration system.
Integrated with high-precision filtration and high-efficiency dehydration technology, the system effectively removes solid particles, emulsified water, dissolved water, and free water from industrial oils. After treatment, oil cleanliness can reach NAS Grade 4–6, helping improve equipment reliability and extend oil service life.
Designed for continuous and unattended operation, this oil purifier offers significant advantages over traditional pressure-type, centrifugal, and vacuum oil filtration systems, including lower energy consumption, simpler maintenance, and stable purification performance.
The Coalescence Separation Oil Purifier is widely used for the purification of turbine oil, hydraulic oil, lubrication oil, light oil, fuel oil, gasoline, diesel, and other industrial oils.
| Index Name | Unit | 10 | 20 | 30 | 50 | 100 | 150 | 200 |
| Flow Rate | L/min | 10 | 20 | 30 | 50 | 100 | 150 | 200 |
| Working Pressure | MPa | Maximum standard 1.0 | ||||||
| Water Content | PPm | ≤100 | ||||||
| Cleanness Grade | NAS | 4-6grade , MOOG2-5garde | ||||||
| Continuous Working Time | Hr | ≥300 | ||||||
| MBTF | Hr | ≥9000 | ||||||
| Power Supply | – | ~50HZ 380V(according to clients’ requirements) | ||||||
| Filter Precision | μm | 10;5;3;1 | ||||||
| Total Power | Kw | 0.75 | 0.75 | 0.75 | 1.8 | 2.5 | 3.3 | 3.5 |
| Pipe Size (Inlet) | mm | 25 | 25 | 25 | 32 | 45 | 58 | 58 |
| Pipe Size (Outlet) | mm | 25 | 25 | 5 | 32 | 45 | 58 | 58 |
| Weight | kg | 350 | 380 | 420 | 550 | 650 | 700 | 800 |
| Dimension (L) | mm | 1300 | 1300 | 1500 | 1500 | 1650 | 1650 | 1750 |
| Dimension (W) | mm | 750 | 750 | 950 | 1050 | 1200 | 1300 | 1400 |
| Dimension (H) | mm | 1450 | 1450 | 1500 | 1500 | 1550 | 1550 | 1650 |
Stage 1: Pre-Filtration
The oil first enters a primary filter element. This stage removes larger solid contaminants such as: metal particles, dust, sludge and carbon deposits Pre-filtration protects the downstream coalescing elements from excessive contamination.
Stage 2: Coalescing Filtration
This is the core stage of the system. The oil flows through a coalescing filter element made from special hydrophilic materials. Tiny water droplets suspended in the oil attach to the filter media surface. As more droplets gather together, they combine into larger droplets. This process is called coalescence. The larger water droplets become heavy enough for separation.
Stage 3: Separation Filtration
The oil then passes through a hydrophobic separation filter element. This material allows oil to pass while blocking water. The enlarged water droplets settle into the water collection chamber due to gravity. The separated water is drained from the machine through a drainage valve or automatic discharge system.
Stage 4: Fine Filtration
A fine filter removes remaining microscopic particles from the oil. This stage improves oil cleanliness levels and protects sensitive equipment components. Our systems can achieve very fine filtration precision for high-performance industrial applications.
- Power plants: Turbine oil purification to ensure stable operation of steam and gas turbines.
- Hydraulic systems: Keeps hydraulic oil clean and dry for better system response and reduced wear.
- Steel industry: Used in rolling mills and heavy hydraulic equipment under harsh working conditions.
- Mining equipment: Protects machinery operating in dusty and humid environments.
- Marine systems: Removes water contamination caused by humidity and seawater exposure.
- Wind power: Maintains gearbox lubrication performance in outdoor conditions.
- Petrochemical industry: Improves reliability of pumps, compressors, and lubrication systems.
- Transformer systems: Enhances insulation performance by removing moisture from transformer oil.
1. What types of oil can this system treat?
The system is suitable for hydraulic oil, lubricating oil, turbine oil, gear oil, compressor oil, and other industrial oils contaminated with water and particles.
2. How does the dehydration technology work?
It uses high-efficiency coalescence separation technology to remove emulsified and free water from oil without requiring heating or vacuum systems.
3. What water content can be achieved after treatment?
The treated oil can typically reach a water content below 100 PPM, depending on the initial contamination level.
4. Does the system affect the oil’s original properties?
No. The process is designed to preserve the oil’s physical and chemical characteristics while extending its service life.
5. What cleanliness level can the system achieve?
The filtration system can improve oil cleanliness to NAS 6 or higher for better equipment protection and reliability.
6. Is the equipment suitable for continuous operation?
Yes. The system supports online filtration, PLC automatic control, and unattended continuous operation.
7. Does the system require high energy consumption?
No. Since it operates without heating, vacuum, or high-speed centrifugal devices, energy consumption and operating costs are significantly reduced.
8. How often do the filter elements need replacement?
Replacement intervals depend on contamination levels and operating conditions, but the system is designed with long-life filter elements and replacement alarms.
9. What safety and monitoring features are included?
The system includes electrical overload protection, filter replacement alarms, and remote alarm transmission functions for safer operation.
10. Which industries commonly use this technology?
It is widely used in power generation, steel, petrochemical, manufacturing, mining, marine, and heavy industrial applications.
Upgrade Your Oil Purification System with ZANYO Coalescence Separation Technology
ZANYO’s coalescence separation oil filter delivers efficient water removal, fine particle filtration, and stable continuous operation for industrial systems. Improve oil cleanliness, reduce equipment wear, and extend oil service life with a reliable, low-energy purification solution built for oil purification and filtration applications. Contact us for technical support, customization options, and supply solutions tailored to your operation.
