Industrial oil filtration vacuum equipment

Industrial oil filtration vacuum equipment is essential for removing water, gases, dissolved contaminants, and solid particles from transformer oils, lubricating oils, turbine oils, and other industrial fluids. These systems ensure optimal performance, prevent equipment damage, and extend oil life. Below is a detailed breakdown of the key types, technologies, and applications.

Types of Industrial Oil Filtration Vacuum Equipment

 (1) Standard Vacuum Oil Purifiers

- Applications: General-purpose oil purification (hydraulic oils, light industrial oils).  

- Features:  

  - Vacuum dehydration (0.5–5 kPa).  

  - Filtration down to 3–10 µm (removes particles, sludge).  

  - Heating (50–65°C) to enhance water removal.  

- Examples:  

  - ZYD series (China)  

  - CJC® (Parker Hannifin)  

 (2) Double-Stage High-Vacuum Oil Purifiers

- Applications: Critical applications (power transformers, high-voltage equipment).  

- Features:  

  - Two-stage vacuum (first stage: 10–50 kPa; second stage: <0.5 kPa).  

  - Ultra-low moisture (≤5 ppm) and gas content (≤0.05%).  

  - 1–3 µm fine filtration.  

- Examples:  

  - GZJ series (China)  

  - DTL (Dürr Megtec)  

 (3) Thin-Film Evaporation Systems

- Applications: Ultra-high-purity oils (HVDC transformers, aerospace).  

- Technology:  

  - Oil flows as a thin film (0.1–0.5 mm) in a high-vacuum chamber (<0.3 kPa).  

  - Low-temperature operation (40–50°C) minimizes thermal degradation.  

- Examples:  

  - VFD (Vacuubrand, Germany)  

  - MBV (Mitsubishi, Japan)  

 (4) Online Continuous Oil Purification Systems

- Applications: Power plants, steel mills (24/7 operation).  

- Features:  

  - Real-time monitoring (moisture, particles, acidity).  

  - Automated filtration with IoT connectivity.  

- Examples:  

  - Hyundai HOF series (Korea)  

  - Pall Kidde Continuous Purification  

 (5) Adsorption-Based Oil Recyclers

- Applications: Oxidized or heavily contaminated oils.  

- Process:  

  - Activated clay/alumina removes acids, sludge.  

  - Molecular sieves (3Å) for deep dehydration.  

- Examples:  

  - GlobeCore CMM-4R  

  - Filtration Group’s EagleBurgmann  

Key Technical Parameters

| Parameter       | Standard Purifier | High-Vacuum System | Thin-Film System |

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

| Vacuum Level    | 1–5 kPa             | <0.5 kPa              | <0.3 kPa            |

| Moisture Removal| ≤20 ppm             | ≤5 ppm                | ≤3 ppm              |

| Gas Content     | ≤0.5%               | ≤0.1%                 | ≤0.05%              |

| Filtration Grade| 3–10 µm (NAS 8)     | 1–3 µm (NAS 6)        | 0.5–1 µm (NAS 4)    |

| Heating Temp.   | 50–65°C             | 50–60°C               | 40–50°C             |

Industry Applications

| Industry         | Oil Type           | Recommended System          |

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

| Power Transformers | Insulating Oil        | Double-stage vacuum purifier    |

| Turbines (Gas/Hydro) | Turbine Oil         | Online continuous filtration    |

| Steel Manufacturing | Hydraulic Oil       | Adsorption + vacuum treatment   |

| Marine & Offshore   | Diesel Engine Oil   | Standard vacuum purifier        |

| Aerospace          | Jet Engine Oil      | Thin-film evaporation system    |

 Leading Manufacturers

 Global Brands

- Pall Corporation (USA) – High-efficiency filtration  

- Hyundai Oilbank (Korea) – Large-capacity systems  

- Dürr Megtec (Germany) – Double-stage vacuum tech  

- Vacuubrand (Germany) – Precision thin-film systems  

 Chinese Manufacturers

- SINO-NSH – Cost-effective solutions  

- Henan Shenghua – High-vacuum transformer oil purifiers  

- Jiangsu Jinrong – Online monitoring systems  

Selection Guide

1. For Power Transformers → Double-stage vacuum purifier (GZJ, DTL).  

2. For Industrial Lubricants → Standard vacuum + adsorption (ZYD + GlobeCore).  

3. For Critical Aerospace Oils → Thin-film evaporator (VFD, MBV).  

4. 24/7 Plant Operation → Online system with IoT (Hyundai HOF).  

Maintenance Best Practices

✔ Check vacuum pump oil (ｒｅｐｌａｃｅ if emulsified).  

✔ Monitor filter pressure ｄｒｏｐ (change at 0.3 MPa).  

✔ Calibrate sensors (moisture, gas content).  

✔ Prevent overheating (never exceed 70°C).  

Industrial oil vacuum filtration systems range from basic purifiers to high-end thin-film evaporators, depending on oil type, contamination level, and operational criticality. For transformers, high-vacuum systems are mandatory, while manufacturing plants may opt for online adsorption systems. Regular maintenance ensures long-term oil health and equipment reliability.  

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