Lubricating oil filter

Product Description

The lubricating oil purifier is a complete filtration and dehydration system comprising a primary strainer, 

an oil pump, and a multi-stage filter assembly. The primary strainer, constructed as a cylindrical metal mesh, 

serves as the first line of defense by preventing larger solid particles from entering and damaging the oil pump. 

The oil pump, typically a gear-type unit, delivers the contaminated oil into the downstream purification 

modules for thorough treatment.

Working Principle

During operation, contaminated oil is drawn into the heater through the inlet under vacuum suction generated 

by the external atmosphere. The heated oil then enters a pre-filter, where large particulate impurities are removed. 

Subsequently, the oil flows into the vacuum separator and passes through a diffuser, which spreads the oil into a thin film, 

creating a large surface area per unit volume. This exposes the oil to an atmosphere of extremely low relative humidity, 

effectively stripping away water, dissolved air, and other gases.

The evaporated water vapor and gases form a mixed stream, which is condensed into liquid through a water tank and cooler,

 then collected in a storage tank. Any remaining non-condensable gases are evacuated by the vacuum pump. 

The dehydrated oil is finally delivered by the discharge pump through a fine filter to remove residual particulate matter, 

completing one full purification cycle and delivering clean, dry oil ready for service.

Key Features

1. High Contaminant Retention Capacity – Effectively captures both large and fine particles.

2. Automatic Backwashing Function – Self-cleans retained impurities from the filter element, 

reducing manual maintenance.

3. Advanced Medium Absorption Condensation System – Enhances water vapor recovery and condensation efficiency.

4. Comprehensive Safety and Control Systems – Equipped with pressure protection, automatic temperature-controlled

 heating, automatic condensate separation, and in-line drainage. Operation is simple, safe, and reliable.

5. Durable Filter Elements – High dirt-holding capacity, corrosion resistance, high-temperature tolerance, excellent

 mechanical strength, high filtration accuracy, and extended service life.

6. Efficient Degassing and Dehydration System – Utilizes three-dimensional evaporation technology combined

 with multi-stage oil-water separation to rapidly remove water, gases, and particulate impurities in a single pass.

Applications

· Purification of turbine oil, hydraulic oil, gear oil, and circulating lubricating oils.

· Maintenance of oil cleanliness and dryness in power generation, marine, steel, mining, and industrial 

manufacturing equipment.

· Offline or bypass filtration to extend oil change intervals and reduce equipment wear.

FAQ 

Q1: What types of oil can this purifier handle?

A: It is compatible with most mineral-based and synthetic lubricating oils, including turbine oil, hydraulic oil, 

gear oil, and compressor oil. For specialty fluids, please consult our technical team for material compatibility verification.

Q2: How much water can the unit remove?

A: The vacuum dehydration system can reduce free and dissolved water content to below 100 ppm (0.01%) under 

normal operating conditions, depending on inlet water content and oil temperature.

Q3: Does the heating process degrade oil quality or additives?

A: No. The heating is precisely controlled within a safe temperature range (typically 40–70°C) to optimize water 

evaporation without causing thermal degradation or additive depletion. Automatic temperature control ensures

 safe operation.

Q4: How often should the filters be replaced?

A: Replacement intervals depend on operating hours and contamination levels. The pre-filter and fine filter 

elements should be inspected regularly; replace when differential pressure exceeds the recommended limit or 

during scheduled maintenance.

Q5: Is the automatic backwashing feature standard?

A: Yes, the automatic backwashing function is integrated to clean the filter element without interrupting operation,

 significantly reducing downtime and manual cleaning effort.

Q6: Can the unit operate continuously for extended periods?

A: Yes, the purifier is designed for continuous operation with proper maintenance.

 We recommend periodic checks of vacuum level, temperature, pressure readings,

 and condensate drainage to ensure optimal performance.

Q7: What vacuum level does the system achieve?

A: The system typically maintains a vacuum level between -0.08 and -0.095 MPa, depending on oil

 temperature and atmospheric conditions, ensuring effective moisture and gas removal.

Product Details