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Time:2025-10-14 11:46:49 Reading volume:
Industrial centrifugal oil purifiers are rated by processing capacity (flow rate) rather than tank volume. Choosing the right capacity ensures efficient separation, consistent oil quality, and reduced maintenance costs.
The proper model depends on your application requirements and operating mode — continuous or batch operation.
Typical Capacity Ranges
| Category | Flow Rate Range | Common Applications |
| ---------------------- | ---------------------- | ---------------------------------------------------- |
| Small / Lab Scale | 10 – 100 L/h | Laboratory samples, small hydraulic systems |
| Medium / Industrial | 100 – 1,000 L/h | Mining hydraulics, marine auxiliary engines |
| Large / Heavy-Duty | 1,000 – 10,000+ L/h | Power turbines, ship main engines, steel plants |
Follow this 3-step method to match purifier capacity with your needs:
1. Define Your Operating Mode
Continuous (online): Purifies oil during normal equipment operation.
Batch (offline): Treats oil in separate cycles during scheduled maintenance.
2. Calculate the Required Flow Rate
Continuous Systems:
`Flow rate = Total oil volume ÷ 24`
(Processes the entire oil system within 24 hours)
Batch Systems:
`Flow rate = Batch volume ÷ desired processing time`
(Typically 4–8 hours)
3. Apply Correction Factors
High viscosity oils reduce throughput → choose a larger model.
Heavily contaminated oil → consider an automatic desludging centrifuge for continuous operation.
Practical Example
Turbine lubrication system: 12,000 L oil volume
Continuous purification required
Required flow = 12,000 ÷ 24 = 500 L/h
Recommended model: 600–800 L/h (allows for viscosity and contamination variation)
Key Selection Considerations
Centrifuges remove free water and solid particles denser than oil.
They cannot remove dissolved water — use a vacuum oil purifier for that.
Always test an oil sample with your supplier to confirm suitability and separation efficiency.
Choose a slightly higher capacity than calculated to handle unexpected load changes.
Conclusion
Selecting the correct centrifugal oil purifier size ensures stable performance, cleaner oil, and extended equipment life. For critical systems, a well-matched purifier capacity not only boosts efficiency but also prevents costly downtime and unplanned maintenance.