What oils can the oil filter filter?

Oil filter is a kind of professional oil purification equipment, which can process a variety of industrial oils. Its applicable oil range mainly depends on the type and configuration of the oil filter. The following is a detailed classification description:

Classification by oil type

1. Insulating oil

- Transformer oil (mineral oil, silicone oil)

- Circuit breaker oil

- Capacitor oil

- Cable oil

Treatment focus: dehydration, degassing, improving dielectric strength

2. Lubricating oil

- Turbine oil (turbine oil)

- Hydraulic oil (anti-wear hydraulic oil, etc.)

- Gear oil (industrial gear oil)

- Compressor oil

- Refrigeration oil

Treatment focus: Removal of wear metal particles and moisture

3. Process oil

- Quenching oil

- Rolling oil

- Cutting oil

- Heat treatment oil

Treatment focus: Removal of oxidation products and metal chips

4. Fuel oil

- Diesel

- Aviation kerosene

- Marine fuel oil

Treatment focus: Removal of impurities and dehydration

2. Classification by oil filter type

| Oil filter type | Applicable oil | Processing capacity |

|------------------|----------------------------|----------------------------|

| Plate and frame pressure type | Low viscosity lubricating oil, transformer oil | Removal of solid particles larger than 5μm |

| Vacuum oil filter | Insulating oil, turbine oil | Deep dehydration (≤10ppm) |

| Centrifugal type | Lubricating oil and fuel oil with high water content | Rapid separation of free water and large particles |

| Coagulation separation type | Severely emulsified hydraulic oil and aviation fuel | Demulsification and removal of free water |

| Regeneration type (white clay) | Severely aged oil products | Reduce acid value and remove colloid |

III. Special oil treatment

1. Synthetic oil

- Phosphate ester fire-resistant oil (EH oil)

- Polyalphaolefin (PAO) lubricating oil

Note: Compatible sealing materials are required, and the temperature should be controlled at ≤65℃

2. Biodegradable oil

- Ester lubricating oil

- Vegetable oil-based hydraulic oil

Treatment points: Avoid high temperature oxidation, special filter material

3. High viscosity oil

- 460 gear oil

- Asphalt

Need to be equipped with a heating system (80-100℃) to reduce viscosity

Unfilterable oils

1. Severely carbonized waste oil

2. Oils containing a large amount of additives and easily filtered out

(such as some zinc-containing anti-wear hydraulic oils)

3. Completely emulsified oil-water mixture (needs to be demulsified first)

Selection suggestions

1. Power industry: A vacuum oil filter (with precision filtration) is preferred

2. Petrochemical industry: coalescence + vacuum composite type

3. Machining: centrifugal + plate and frame pressure type combination

4. Ship field: high flow centrifugal separation system

Maintenance tips

1. Different oils need to ｒｅｐｌａｃｅ special filter elements

2. Thorough cleaning is required after processing bio-oil

3. An explosion-proof configuration is required when filtering flammable oils

Note: The specific applicability needs to refer to the oil MSDS and oil filter technical parameters. It is recommended to do a compatibility test before cross-use.