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What are the transformer oil filtration service companies?

Time:2025-01-03 13:11:57  Reading volume:

Several companies offer transformer oil filtration services, providing solutions for purifying and maintaining the quality of insulating oils in transformers. These companies use various filtration techniques such as vacuum dehydration, fine filtration, centrifugal separation, and multi-stage filtration systems to remove contaminants like water, sludge, gases, and particles from transformer oil. Below are some well-known transformer oil filtration service providers:

1. Centrifugal Oil Purifiers

  • Company: Schneider Electric

    • Services: Schneider Electric provides oil purification and filtration services, including the use of centrifugal oil purifiers, to help extend the life of transformer oil by removing solid particles, water, and gases.
    • Website: www.se.com
  • Company: Ester Oil Services

    • Services: Specializes in transformer oil filtration and regeneration services using centrifugal systems. They offer mobile oil filtration units that can treat oil on-site, ensuring efficient purification.
    • Website: www.ester-oil-services.com

2. Oil Purification and Regeneration Services

  • Company: MACHINERY AND INDUSTRIAL SUPPLIES, INC. (MISI)

    • Services: Provides transformer oil filtration, regeneration, and treatment services, specializing in mobile purification units that remove moisture, gases, and particulate matter from transformer oil.
    • Website: www.misi.com
  • Company: OIL FILTRATION SERVICES (OFS)

    • Services: Oil Filtration Services provides transformer oil filtration services, including onsite purification and filtration to remove sludge, water, and gases. They offer both regular and emergency filtration services.
    • Website: www.oilfiltrationservices.com


3. Vacuum Dehydration and Degassing Services


-Company: SINO-NSH

- Service: SINO-NSH offers a range of oil filtration services for transformers, including vacuum dehydration, degassing, and filtration to remove particulate contaminants and moisture. They offer on-site services and equipment sales.

- Website: [www.lubeoilrecycle.com](https://www.lubeoilrecycle.com/)

    4. Mobile Filtration Units

    • Company: Filtration Services Ltd.

      • Services: Filtration Services Ltd. offers mobile oil filtration units designed to purify transformer oil on-site. Their units are equipped with high-performance filtration technologies, including vacuum dehydration and fine filtration.
      • Website: www.filtrationservices.co.uk
    • Company: Transformer Oil Filtration (TOF)

      • Services: TOF specializes in providing transformer oil filtration services using mobile purification units that can be deployed at client sites. They focus on the removal of moisture, sludge, and gases to restore oil quality.
      • Website: www.transformeroilfiltration.com

    5. Oil Regeneration Services

    • Company: Hubbard-Hall

      • Services: Hubbard-Hall offers transformer oil regeneration services, which involve cleaning and rejuvenating used transformer oils through their proprietary purification technologies. Their services are available for various transformer sizes and oil types.
      • Website: www.hubbardhall.com
    • Company: EPCO (Electric Power Components, Inc.)

      • Services: EPCO provides transformer oil regeneration and filtration services, including treatment for both dielectric oils and mineral oils. Their services help improve the insulating properties of the oil and reduce the risk of transformer failure.
      • Website: www.epcotransformer.com

    6. Specialized Oil Filtration and Maintenance

    • Company: Ecofil

      • Services: Ecofil offers transformer oil filtration and purification services, specializing in mobile filtration units for large-scale industrial clients. They offer solutions for removing moisture, sludge, and contaminants.
      • Website: www.ecofil.com
    • Company: SUEZ Water Technologies & Solutions

      • Services: SUEZ offers a variety of industrial filtration services, including transformer oil filtration and regeneration. Their services focus on improving transformer efficiency and extending its service life.
      • Website: www.suezwatertechnologies.com

    7. Global Oil Filtration Service Providers

    • Company: ABB

      • Services: ABB provides transformer oil filtration and purification services as part of their electrical equipment maintenance offering. They use both vacuum processing and other oil filtration techniques to restore oil and enhance transformer performance.
      • Website: www.abb.com
    • Company: Siemens

      • Services: Siemens offers transformer oil purification and treatment services, including the use of vacuum dehydration and regeneration systems. Their services help in improving the quality and reliability of transformer oil.
      • Website: www.siemens.com

    8. Local and Regional Oil Filtration Providers

    • Company: Air Liquide

      • Services: Air Liquide provides transformer oil filtration services, focusing on moisture and gas removal through advanced filtration and vacuum dehydration methods.
      • Website: www.airliquide.com
    • Company: Castrol Industrial Services

      • Services: Castrol provides transformer oil filtration services as part of their industrial lubricants and maintenance services. Their offerings include vacuum dehydration, oil regeneration, and oil analysis.
      • Website: www.castrol.com

    How to Choose the Right Transformer Oil Filtration Service:

    When selecting a transformer oil filtration service provider, consider the following:

    • Expertise and Experience: Choose a company with experience in handling transformer oil and expertise in using the most appropriate filtration technologies (vacuum dehydration, centrifugal separation, etc.).
    • Service Options: Consider whether the company offers on-site filtration (mobile units) or requires the oil to be shipped for treatment. On-site services are usually more convenient for large transformers.
    • Equipment and Technology: Ensure the company uses high-quality equipment that meets the latest industry standards, such as multi-stage filtration systems and vacuum treatment.
    • Emergency Services: Check if the company offers emergency or 24/7 services in case your transformer requires urgent oil treatment.
    • Cost and Turnaround Time: Consider the cost-effectiveness of the service, as well as the time it takes to purify the oil, especially if your transformer is critical to operations.
    • Warranty and Maintenance Support: Ensure that the company offers post-service support and warranties for any equipment or processes used.


    Transformer oil filtration is a critical service to maintain the integrity of transformers and ensure efficient operation. Many service companies, ranging from specialized filtration firms to large industrial equipment providers, offer oil purification and regeneration services. Make sure to select a service provider that aligns with your operational needs, whether you're looking for mobile filtration units, regular maintenance, or emergency services.


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