How to choose the filtration accuracy of vacuum oil filter?

When choosing the filtration accuracy of the vacuum oil filter, it is necessary to comprehensively consider the use requirements of the insulating oil, the degree of pollution and the performance of the equipment. The following are the specific steps:

1. Clarify the filtration requirements

- Oil type: Different oils have different requirements for filtration accuracy. For example, transformer oil usually requires higher accuracy.

- Pollution degree: ｓｅｌｅｃｔ the appropriate filtration accuracy according to the content of impurities and moisture in the oil. Higher accuracy is required when the pollution is serious.

2. Understand the filtration accuracy level

- Coarse filtration: The filtration accuracy is 10-25 microns, which is suitable for preliminary filtration and removal of larger particles.

- Medium filtration: The filtration accuracy is 1-10 microns, which is suitable for general industrial oil.

- Fine filtration: The filtration accuracy is 0.5-1 microns, which is suitable for high-purity oil products, such as transformer oil.

- Ultra-fine filtration: The filtration accuracy is 0.1-0.5 microns, which is suitable for occasions with extremely high purity requirements.

3. Consider equipment performance

- Vacuum degree: High vacuum degree helps to remove moisture and gas and improve the filtration effect.

- Heating system: A good heating system can reduce oil viscosity and improve filtration efficiency.

- Filter media: Choose suitable filter element materials (such as glass fiber, stainless steel sintered felt) to ensure filtration accuracy and life.

4. Reference industry standards

- International standards: Such as ISO 4406, which stipulates the oil cleanliness level.

- Industry specifications: The power industry has specific requirements for the filtration accuracy of transformer oil, which must be followed.

5. Practical application cases

- Transformer oil: Usually the filtration accuracy is required to be 1-3 microns to ensure insulation performance.

- Hydraulic oil: Generally, the filtration accuracy is required to be 5-10 microns to ensure the normal operation of the system.

- Lubricating oil: Usually the filtration accuracy is required to be 10-25 microns to extend the life of the equipment.

6. Economic considerations

- Initial investment: The price of high-precision oil filter is relatively high, and it needs to be selected according to the budget.

- Operating cost: High-precision filtration may increase the frequency of filter element replacement and maintenance costs.

7. Supplier recommendations

- Technical support: Choose suppliers with technical support to ensure equipment selection and follow-up services.

- User reviews: Refer to other users' feedback to understand the actual performance of the equipment.

Summary

When selecting the filtration accuracy of the vacuum oil filter, it is necessary to comprehensively consider the oil type, contamination level, equipment performance, industry standards, economy and supplier recommendations. Through reasonable selection, both filtration needs can be met and costs can be controlled.