Transformer oil two-stage vacuum oil filter
Transformer Oil Purification & Treatment System

Transformer oil two-stage vacuum oil filter

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Recommended Size: 800 x 600 px or larger
Show front or 45-degree angle of the machine

Key Product Specifications

  • Body Material: High Carbon Steel (304 / 316 Stainless Steel Optional)
  • Working Principle: Double-Stage High Vacuum Dehydration & Degassing (Evacuation & Oil Injection Capable)
  • Applicable Oils: Transformer Oil, Switch Oil & Other Insulating Oils
  • Flow Rate Range: 1,800 – 30,000 L/h
  • Breakdown Voltage Increase: ≥ 70 kV (GB/T 507)
  • Processed Water Content: ≤ 3 PPM (GB/T 7600)
  • Processed Gas Content: ≤ 0.05% (GB/T 423)
  • Filtration Precision: ≤ 1 μm
ISO 9001 Certified
18-Month Warranty
Global Shipping
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Applications & Operating Environments

On-Site Substation Maintenance

Ideal for field maintenance of transformers in substations rated above 110kV, as well as deep purification of new oil, imported oil, transformer oil, and EHV transformer oil.

Multi-Industry Power Safety

Widely applied in power plants, substations, grid companies, metallurgy, petrochemicals, machinery, and railway industries. Suitable for transformer vacuum filling, vacuum drying, and hot oil circulation.

High-Altitude Performance

Specially optimized for low atmospheric pressure and high-altitude regions, providing exceptional pumping speed and degassing efficiency.

Key Technical Features & Advantages

I. High-Efficiency Dehydration & Degassing

1. Double-Stage 3D Flash Evaporation

Utilizes dual-stage high vacuum and high-speed 3D flash evaporation technology to rapidly remove moisture, gas, and volatile hydrocarbons from oil.

[3D Flash Vessel Structure Diagram] Recommended Size: 600 x 400 px

2. Enhanced Flash Point & Dielectric Strength

Significantly improves insulating oil performance by boosting flash point and breakdown voltage withstand strength.

[Breakdown Voltage Comparison Chart] Recommended Size: 600 x 400 px

3. On-Site Vacuum Filling & Evacuation

Meets all technical requirements for transformer body evacuation and vacuum oil filling during installation or maintenance.

[On-Site Vacuum Filling Operation Image] Recommended Size: 600 x 400 px

II. Precision Filtration & Anti-Foam Protection

4. Multi-Stage Progressive Filtration

Adopts progressive multi-stage filtration to effectively eliminate mechanical particulates and fine impurities.

[Stainless Steel Filter Element Detail] Recommended Size: 600 x 400 px

5. Washable Elements & Zero Contamination

High dirt-holding capacity elements trap micro-particles and support repeated cleaning, reducing operational costs without secondary pollution.

[Washable Filter Element Close-up] Recommended Size: 600 x 400 px

6. Photoelectric Liquid Level & Anti-Spill

Highly sensitive photoelectric level control detects foam and sets high/low limits to completely eliminate oil spraying issues.

[Level Sensor & Defoamer Detail] Recommended Size: 600 x 400 px

III. Automated Control & Safety Interlocks

7. Quadruple Automatic Control System

Integrates automatic constant temperature control, level control, defoaming, and pressure protection.

[Automated Control Logic Diagram] Recommended Size: 600 x 400 px

8. Online Filtration & Status Display

Supports energized online oil purification with real-time status indicators on the control panel.

[Control Box Panel & Indicator Lights] Recommended Size: 600 x 400 px

9. Ergonomic & Energy-Efficient Design

Engineered for low noise, easy operation, long maintenance intervals, and reduced power consumption.

[Low-Noise Drive Motor Layout] Recommended Size: 600 x 400 px

10. Electrical Safety Interlock System

Features interlocked protection across oil discharge, vacuum pumps, and heating systems to prevent misoperation.

[Safety Interlock Schematic] Recommended Size: 600 x 400 px

11. Imported Foreline Vacuum Pump

Standardized with an imported foreline vacuum pump (naturally cooled) for high pumping speed and ultimate vacuum performance.

[Imported Vacuum Pump Unit Close-up] Recommended Size: 600 x 400 px

Detailed Technical Specifications

ProjectParameter NameUnit3050100150200300500
Technical indicators of equipmentFlowL/H1800300060009000120001800030000
working vacuum degreepa≤100
Working pressurebar≥2
Constant temperature control range°C20 ∼ 80
Power380V/50HZ (or according to user needs)
Working noisedB(A)≤ 74
Heating powerKW356080859095100
Total powerKW405586909598105
Inlet and outlet pipe diametermm25325050506580
Equipment weightkg60080010001300180021002400
Overall dimensionLong (mm)1200125014501600160018001900
Wide (mm)1200125014001600160017001900
High (mm)1700175018002100215022502300
Oil treatment indexoil breakdown voltageKV≥70 (gb/ t507)
Water content in oilPPM≤ 3(GB/T7600)
Gas content in oil%≤ 0.05(GB/T423)
Filtration accuracyum≤ 1

Optional Configurations

1. PLC Touchscreen Automation

Optional PLC control system with interactive touchscreen for fully automated operation, real-time monitoring, and dynamic workflow visualization.

[PLC Touchscreen Interface Image] Recommended: 400x250 px

2. Online Moisture Sensor

Integrated high-precision moisture sensor for real-time monitoring and display of moisture content (PPM) during operation.

[Online Moisture Tester Detail] Recommended: 400x250 px

3. Variable Frequency Flow Control

Built-in frequency inverter allowing operators to precisely adjust and fine-tune oil treatment flow rate according to site requirements.

[VFD Control Panel Image] Recommended: 400x250 px

4. Enclosure & Weatherproof Structures

Available in fully enclosed, canopy-shielded, canvas-covered, or open-frame weatherproof configurations.

[Enclosed / Weatherproof Frame Image] Recommended: 400x250 px

5. Mobile Trailer Chassis

Single-axle or dual-axle mobile trailer chassis equipped with pneumatic tires and braking systems for easy field transportation.

[Mobile Trailer Unit Photo] Recommended: 400x250 px

6. Premium Imported Components

Upgrade option to replace vacuum pumps, oil pumps, and electrical components with premium German or Japanese brands.

[Imported Components Close-up] Recommended: 400x250 px

7. Totalizing Flow Meter

Equipped with a high-accuracy flow meter displaying instant flow rates and cumulative volume for precise tracking.

[Flow Meter Installation Image] Recommended: 400x250 px

8. External Transformer Evacuation System

Independent external vacuum connection and piping manifold allowing the unit to act as a standalone vacuum pump for transformers.

[External Vacuum Port Connection] Recommended: 400x250 px

9. Custom Branding & Color (VI)

Customized anti-corrosion painting to match your corporate identity standards (e.g., Safety Yellow, Industrial Blue, etc.).

[Custom Color Finish Showcase] Recommended: 400x250 px