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

INDUSTRY NEWS

Vacuum Oil Purifierequipment

The industrial oil filtration market continues to expand as power generation, steel manufacturing, and petrochemical industries upgrade their equipment. This article examines current market trends and the growing demand for high-performance oil purification solutions.

Market Overview

1. Growing Power Sector Demand

The expansion of 500kV and 1000kV power transmission infrastructure has driven demand for two-stage vacuum oil purifiers capable of handling ultra-high voltage transformer oil with stringent cleanliness requirements.

2. Steel Industry Modernization

Steel mills are upgrading their hydraulic systems and rolling mill lubrication equipment, requiring robust oil filtration solutions that can handle high-viscosity oils and remove water, gases, and metallic particles.

3. Rail Transit Development

High-speed rail and urban metro networks require reliable on-board and depot-based oil purification systems for traction motor bearings, gearboxes, and hydraulic systems.

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