🌐 English Version · This is the English news article for industrial oil filtration industry updates.

APPLICATION CASE

Vacuum Oil PurifierMachinerySafe

This article presents real-world applications of vacuum oil purifiers across various industrial sectors. These case studies demonstrate the versatility and effectiveness of modern oil filtration technology in solving diverse oil cleanliness challenges.

Industry Applications

1. Power Transformer Maintenance

In power applications, vacuum oil purifiers restore dielectric strength of transformer insulating oil, reducing moisture content to below 5 ppm and gas content to below 0.05%, extending transformer service life.

2. Steel Mill Hydraulic Systems

Steel mills use vacuum oil purifiers to maintain hydraulic system cleanliness, preventing valve sticking, cylinder wear, and costly unplanned downtime.

3. Wind Turbine Gearbox Protection

Wind farms deploy portable oil purifiers for on-site gearbox oil treatment, removing water, particles, and oxidation products that cause premature bearing failure.

Vacuum Oil Purifier Working Principle

A vacuum oil purifier operates on the principle of vacuum dehydration and degassing. The oil is first heated to an optimal temperature (typically 40-80°C), then exposed to high vacuum conditions inside a vacuum chamber. Under reduced pressure, water boils and evaporates at much lower temperatures, and dissolved gases are released. The dehydrated and degassed oil then passes through multi-stage precision filters to remove solid particles. The result is clean oil with significantly improved dielectric strength, viscosity, and chemical stability.

Two-Stage Vacuum Oil Purifier

For applications requiring ultra-high cleanliness (such as EHV/UHV transformer oil, nuclear power, and aerospace), a two-stage vacuum oil purifier uses two vacuum pumps in series — typically a Roots pump followed by a rotary vane pump — to achieve vacuum levels below 5 Pa. This enables moisture reduction to below 5 ppm and gas content below 0.05%, meeting the most stringent cleanliness standards in the industry.

Application Areas

Power Transformer

High-Voltage Insulating Oil

Industrial Lubricating Oil

Hydraulic Oil

Turbine Oil

Steel Mill

Petrochemical

Rail Transit

Wind Power

Conclusion

As industrial oil cleanliness requirements continue to rise, vacuum oil purifiers and two-stage vacuum oil purifiers have become essential equipment across multiple industries. Chongqing Yanneng Oil Filter Machine Co., Ltd. is committed to providing high-quality oil filtration solutions to help industrial customers achieve reliable operation, extend equipment service life, and reduce maintenance costs.

Need Expert Advice on Oil Filtration?

Contact Yanneng for vacuum oil purifiers, two-stage vacuum oil purifiers, and custom oil filtration solutions.
Service Hotline: 400-023-9089 · Email: info@yanneng.com