• Insulation Oil Purifier
  • Wide Scale of Purification Solutions
Home > News > industry-news>

How much does a transformer oil purification systems cost?

Time:2025-01-15 13:20:41  Reading volume:

The cost of a transformer oil filter can vary depending on factors like the type of filter, capacity, brand, and specific features (e.g., whether it is part of a full oil purification system or a standalone filtration unit). Below is a breakdown of different types of transformer oil filters and their associated costs:

1. Basic Transformer Oil Filters

  • Description: These are simple filters designed to remove solid particles and dirt from the transformer oil. They are typically used in smaller systems or for periodic maintenance.
  • Price Range: $500 to $5,000 USD
  • Factors Influencing Price:
    • Capacity: Smaller, less powerful filters (e.g., for low-volume applications) will be cheaper.
    • Material: The type of filter material (e.g., cellulose, mesh, paper) can affect the cost.
    • Brand: Well-known brands tend to be priced higher.

2. Vacuum Oil Filtration Units

  • Description: These systems are often used for removing moisture and dissolved gases, as well as solid particulates from transformer oil. The filters may be integrated into a vacuum dehydration system that also includes a pump and vacuum chamber for water and gas removal.
  • Price Range: $5,000 to $30,000 USD
  • Factors Influencing Price:
    • Filtration Capacity: Larger systems designed for high volumes of oil filtration can be more expensive.
    • Technology: Units with advanced vacuum dehydration, degassing, and moisture removal will cost more.

3. Transformer Oil Purification Systems

  • Description: These are more comprehensive systems designed to remove a wide range of contaminants from transformer oil, including particulates, water, gas, and acids. These systems typically include multi-stage filtration, vacuum dehydration, and degassing processes.
  • Price Range: $10,000 to $100,000+ USD
  • Factors Influencing Price:
    • Purification Stages: More complex systems with multiple filtration and regeneration stages (e.g., Fuller’s Earth treatment) will be higher in price.
    • Capacity: Systems designed to handle large volumes of oil will cost more.
    • Automation & Features: Units with automated controls, advanced monitoring systems, or high-efficiency regeneration technology can add to the cost.

4. Activated Carbon Oil Filters

  • Description: Used for fine polishing and removing very fine particles, oxidation by-products, and gases. These filters are typically used as the final stage in an oil purification system.
  • Price Range: $2,000 to $15,000 USD
  • Factors Influencing Price:
    • Size and Capacity: Larger units or those designed for industrial-scale use are more expensive.
    • Filter Lifespan: Some filters are designed to be replaced periodically, while others are regenerable, which can affect the overall cost.

5. Full Oil Filtration Systems (Turnkey Solutions)

  • Description: These systems combine filtration, dehydration, degassing, and regeneration technologies into one complete system for transformer oil maintenance. They are used for continuous or high-volume oil treatment.
  • Price Range: $15,000 to $150,000 USD
  • Factors Influencing Price:
    • Customization: Tailored solutions to handle specific contaminants (e.g., high levels of acid or sludge) may add to the cost.
    • Capacity: Higher capacity units, designed for large power plants or industrial use, will cost more.
    • Brand & Technology: Leading brands with advanced features (e.g., real-time oil quality monitoring, automated regeneration) can increase the cost.

Factors Affecting the Cost:

  1. Filter Type & Quality: Basic mechanical filters (e.g., mesh filters) are generally more affordable, whereas high-performance filters, such as activated carbon filters or systems with multi-stage purification, are more expensive.
  2. Capacity: Larger systems designed to handle large volumes of oil (typically used in industrial settings) are more expensive than smaller units meant for routine maintenance or smaller transformers.
  3. Automation & Features: Modern filters and systems often include digital controls, remote monitoring, and self-cleaning mechanisms, which add to the cost.
  4. Brand: Well-known brands, particularly those that offer proven reliability and after-sales service, tend to be more expensive.

Additional Costs:

  • Maintenance & Replacement Parts: Ongoing costs include the replacement of filters (in multi-stage systems), cleaning agents, and other consumables.
  • Transportation & Installation: Large filtration systems may involve additional costs for shipping, installation, and setup.
  • Training: Some manufacturers offer training for operating the system, which may add to the overall cost.

Where to Purchase:

  • Manufacturers and Distributors: Companies like ENERVAC, HVP, CJC, GE Oil & Gas, ALFAGOMMA, and Schneider Electric manufacture or distribute turbine and transformer oil filtration systems.
  • Online Platforms: Platforms like Alibaba, Made-in-China, and Global Sources list various suppliers offering transformer oil filters and purification systems.
  • Local Dealers: Many industrial equipment suppliers specialize in offering filtration equipment, and local distributors may offer after-sales support.

Example Brands and Manufacturers:

  • ENERVAC: Known for high-quality transformer oil purification systems.
  • CJC Filtration: Specializes in advanced filtration systems with regeneration capabilities.
  • HVP Engineering: Offers comprehensive oil filtration and regeneration systems.
  • Schneider Electric: Provides various oil purification solutions for transformers.


By evaluating your specific requirements, such as oil volume, contamination level, and desired purification process, you can choose the right type of filter or system for your needs.

transformer oil filter oil purification