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Oil and Gas Treatment Plants for Power Operations

Micafluid stands as a prominent innovator and leading supplier, specialised in the development of oil treatment systems and gas recovery units.


Rua Álvaro Pedro Gomes 9 Loja ,

Micafluid stands as a prominent innovator and leading supplier, specialised in the development of oil treatment systems and gas recovery units.

The company’s expertise lies in the purification of insulating oil applied in power transformers and associated high-voltage (HV) equipment through processes of degassing, drying and filtration.

Micafluid offers a variety of products consisting of oil treatment and regeneration plants, vacuum pump systems and equipment designed for the maintenance and servicing of sulfur hexafluoride (SF₆) gas for switchgear, circuit-breakers and HV transformers.

Circular economy

Micafluid has a critical role on the operational health of transformers by treating aged oil and paper insulation during production. Moreover, our oil treatment and regeneration  system extends the lifetime of transformers by preserving the integrity of the insulation system, slowing down the aging degradation process through the removal of water, gases, acids and sludge during field service maintenance. Additionally, the system promotes environmental sustainability by enabling the recycling and reuse of transformer oil, thereby reducing its overall environmental impact.

Micafluid’s treatment plants throughput range starts from 300 lt/h and increases to 30,000 lt/h.
Regeneration treatment plant for corrosive sulphur removal.
Micafluid’s SF6 gas treatment and recovery units (GTRU) have inner tank sizes of 30L, 330L and 630L.
Micafluid provides power facilities with oil and gas treatment plants, as well as maintenance and training services to enable guaranteed future performance.

Cost-effective oil treatment plants for power transformers and HV equipment

The typically lengthy and expensive process of transformer oil replacement can be avoided through the use of Micafluid’s oil treatment plants, which save time and money, while guaranteeing the complete recovery of oil properties.

With Micafluid’s variable oil purification (VOP) plants, clients do not have to match their transformer to the size of their treatment plant. The company’s VOP product line ranges from a 300lt/h throughput to units with a 30.000lt/h oil treatment capacity.

With Micafluid’s treatment plants, oil flow is automatically adjustable, allowing for easier and more versatile operations.

The company’s plants use vacuum and Micropore filtration technology, while all units are PLC-controlled, integrating fully automatic functions that enable the treatment, purification and filtering of oil without de-energising the transformer.

Oil regeneration for power transformers and HV equipment

Micafluid’s compact and mobile oil regeneration systems improve the dielectric properties of aged oil, by using Fuller’s Earth technology and vacuum drying, and the units adsorb the carbonyl and hydroxyl components in the oil.

The systems consist of one or more adsorption columns, filter housing, and an optional inhibition set, which work together to remove the acidity and moisture from the oil. This process dramatically reduces long-term risks, while improving the oil’s dissipation factor, and refining its colour.

Micafluid’s regeneration units can be connected with separate drying and degassing oil treatment VOP plants.

Sulfur hexafluoride (SF6) gas treatment and recovery units

Micafluid has a more than 40 years’ experience in handling and treating gas-insulated power equipment.

SF6 is a heavy gas commonly used in metal-enclosed switchgears, HV circuit breakers and transformers, linear accelerators, capacitors, and gas-insulated power lines worldwide.

The company’s compact mobile units are fitted with all the required features to ensure safe, dependable and environmentally friendly treatment of SF6 gas.

Designed and built in Switzerland using state-of-the-art, heavy-duty European components, Micafluid’s gas treatment and recovery units (GTRU) recover, purify and refill SF6 gas, while offering a high degree of versatility through automated drive and control technology.

Micafluid’s GTRUs offer the optional ability of recovering and refilling one gas chamber, while simultaneously emptying another compartment as an additional benefit.

Standard units are available with internal tank sizes of 30L, 330L and 630L.

Accessories for measuring and monitoring SF6 gas quality

Micafluid supplies many accessories such as gas transfer hoses, valves, filters, and adapters. These can be used with the GTRU units, in addition to the required equipment for measurement and monitoring of SF6 gas quality such as digital pressure and vacuum gauges. They can also be used with regulators for the reduction of gas pressure.

The tools allow continued surveillance, which is essential for the longevity and sustained optimal operation of all gas-insulated electrical components.

Maintenance services for treatment plants

All units requiring maintenance are repaired and tested by Micafluid’s service specialists. A detailed service protocol will indicate the state of the unit on arrival, the work and testing needed, as well as guaranteed future performance after servicing.

Power plant maintenance and operation training

Personnel training and commissioning of the systems can be conducted at the client’s facilities or on-site.

Micafluid’s process engineers make use of the best practices to train operators regarding the use of the plant’s process control, operation and maintenance features.

Micafluid Virtual Assistance (MVA) Platform for online remote support

Users acquire immediate remote access to their machine by subscribing to Micafluid’s Machine Virtual Assistance (MVA) Support Platform. Furthermore, it enables organisations to remotely view and take action on the oil treatment operation, minimising transportation and operator costs.

MVA Support Platform is a central database that streamlines processes for future reference, facilitating traceability, comparison and reporting. The platform also includes an option for a remote alarm system via SMS.

About Micafluid

With roots tracing back to a century-old legacy, Micafluid has built an extensive wealth of knowledge and experience in the power industry. Established in 2005, the company’s positions itself as the perfect ally for energy operators, demonstrating a genuine concern not just for machinery but also for assisting dedicated business in economising both time and money.

Micafluid’s dedicated research and development team is committed to transformer plant maintenance, focusing on the removal of water, gas, and sediment contents.

Additionally, the team actively works in preventive measures to uphold the original insulating performance of equipment, aligning with the latest industrial standards and protocols, while also promoting environmental sustainability through the recycling and reuse of transformer oil, thereby reducing its overall environmental impact.

White Papers

  • MicaSonic MS4A - Lab Scale Yet Pocket Sized

    The MicaSonic MS4A is designed to be installed in oil treatment, regeneration and filtration plants, but can also be mounted directly on transformer tanks, tap changers, oil tanks as well as in oil distribution systems.

  • Oil Purification Systems

    Micafluid’s Swiss technology used for the conditioning and purification of insulating oil has been widely used globally over the past century since 1913 and has offered excellent service and results for its respective customers.

  • Oil Filtration Technology

    Micafluid provides fine filters and spares for Micafluid and MICAFIL oil treatment plants that have an optimised graded density with fine pore sizes in inner layers and bigger pore sizes in the outer layers for high removal efficiency, high dirt holding capacity and long service life.


  • Micafluid Motion Loop

    Micafluid is the sole beneficiary of a century-old heritage, which has built an extensive wealth of knowledge and experience in the power industry.

Press Releases

Products & services

  • Systems for Oil Vacuum, Pumping and Filtration

    Micafluid’s vacuum pump system type “VPU”, with an automatically controlled suction capacity of roots pump, is designed for economical and independent on-site degassing and dehydration of transformers under vacuum.

  • Engineering and Plant Retrofit

    We pride ourselves on our engineering know-how and experience that provides us with the proprietary skills needed to design and execute both simple and complex projects with the expected Swiss ingenuity and quality.

  • After Sales and Service

    During training and commissioning, Micafluid AG process engineers perform training for the operators at our workshop in Schlieren, Switzerland.

  • SF6 Gas Systems

    Gas treatment and recovery GTRU-type units recover, purify and refill the SF6-gas with a high degree of safety and reliability during the process, offering versatility through an automated drive and control technology.

Rua Álvaro Pedro Gomes 9 Loja

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