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Existing acid filters do not remove the contamination responsible for bearing failures or servo valve sticking. This contamination accumulates over time and is deposited on mechanical surfaces because of temperature and pressure changes.

EPT’s Ion Charge Bonding (ICB™) filters take filtration to the next level by not only removing acids, but by removing the contamination responsible for failure. ICB™ filters offer unmatched performance that will resolve lubricant deposit formation and, when used as part of our phosphate ester fluid maintenance and testing program, will significantly reduce the risk of production losses.

ICB™ filter products are supported by a team of world-class experts, who are specialists in the maintenance of phosphate ester fluids. With 1000s of global installations to date, many operating for over 20 years, ICB™ filters have achieved over 100 million hours of operating performance history on some of the largest power stations and super-critical applications worldwide.

Key Benefits of ICB™ Filters

  • Remove the dissolved breakdown products that are responsible for servo valve and/or bearing failures
  • Dramatically increase fluid resistivity values which eliminates a common servo valve failure mode referred to as electrokinetic wear or valve erosion
  • Unlike conventional products, ICB™ filters do not contribute fine particulate, or add dissolved metals that contribute to increased rates of fluid breakdown
  • ICB™ filters are available in standard size cartridges or as part of a complete fluid treatment system (see SVR™)
  • Complete stainless steel construction featuring robotic, spiral welding which provides maximum filter integrity

While originally developed for phosphate ester lubricants, EPT has expanded the capabilities of ICB™ filters for a wide range of lubricants and additives types as follows:

  • ICB™ A filter for phosphate ester, fire-resistant lubricants, sold under the brand names: Fyrquel®, Fyrquel®EHC, Fyrquel® EHC Plus, Fyrquel® GT, Reolube® TurboFluid 46XC, Reolube® TurboFluid B, Anvol® 46 XC, Shell Turbo® Fluid DR 46, Mobil Pyrotec® HFD 46, and many others
  • ICB™ C filter for polyol ester fluids including QuintoLubric®
  • ICB™ J filter for polyol ester lubricants used in aero derivative jet engines including Mobil Jet® II
  • ICB™ T filter for mineral oil based hydraulic fluids
  • ICB™ V filter for mineral oil based turbine and compressor lubricants

Fyrquel is a registered trademark of ICL, Reolube is a registered trademark of Chemtura, Anvol is a registered trademark of Castrol. Shell Turbo is a trademark of Shell Oil Company. Mobil Pyrotec and Mobil Jet are trademarks of Exxon Mobil Corporation. Quintolubric is a registered trademark of Quaker Chemicals.



Lubricant varnish forms when a lubricant’s capacity to hold dissolved oil breakdown products is exceeded.

EPT’s Soluble Varnish Removal (SVR™) system removes and prevents accumulation of these dissolved oil breakdown products during normal turbine operation so that lubricant varnish cannot form – period.

The SVR™ system targets and eliminates the primary cause of varnish formation; whereas, all other systems (electrostatic, agglomeration, and depth filtration) must wait for varnish to form before they are of any value.

Key Benefits of SVR™ Systems

  • ICB™ filter purification technology for soluble varnish contaminant removal:
    • Over 40 million successful operating hours
    • ICB™ filters will not affect turbine oil additives
    • 4-6x more capacity than competing varnish removal systems
    • Unlike competing systems, SVR™ purifies 100% of reservoir volume each day
  • Quickly reduces and prevents servo valve sticking
  • SVR™ system quickly reduces varnish potential in large gas turbines as measured by the MPC or QSA®(Quantitative Spectrophotometric Analysis – Analysts, Inc.) tests
  • Unlike particulate removal technologies, SVR™ works all the time including operating conditions when varnish is dissolved in the oil
  • Eliminates the varnish formation cycle that typically occurs when the oil cools during turbine shut down
  • Removes all forms of varnish (solid and dissolved)
  • Low cost of ownership over 10 years with defined consumable costs
  • ICB™ filter cartridges are changed annually when installed on common sized reservoirs and used in maintenance mode
  • Small footprint and straight-forward operation
  • Low maintenance: Turn it on and let it run, that’s it!
  • Guaranteed to work with comprehensive analysis included at no charge until results are documented

Our Projects

About Us

Purified Oil is official distributor of EPT Clean Oil

EPT Overview

EPT has worked for over 20 years to advance the science of lubrication maintenance and reliability for critical applications, such as power generation, manufacturing, and heavy industry. We specialize in turbine and compressor lubricant and electro-hydraulic control (EHC) fluid maintenance.

EPT has worked with a number of the largest production facilities in the world to resolve lubrication issues and improve internal programs to prevent recurrence. This experience has led to the development of several key lubricant maintenance and testing technologies that have saved 100s of millions of dollars.

Our proprietary EPT technologies: Ion Charged Bonding (ICB™), Soluble Varnish Removal (SVR™) Electrostatic Contamination Removal (ECR™), and Total Moisture Removal (TMR™), have tens of millions of hours of proven performance on super-critical applications such as airports, aircraft carriers, gas turbines, and EHC systems at some of the largest power plants in the world.

EPT is one of the only integrated lubricant maintenance solutions companies in the world. We combine next generation filtration technology development with a research-grade laboratory and high velocity flushing services.

CleanOil, a division of EPT, is a leader in high velocity oil flushing services in Canada. CleanOil has carefully established our reputation in this important service and we will exceed your requirements with specialized expertise to deliver safe, professional and on-time/on-budget results.

EPT and CleanOil work with you and your company to provide expert advice, personable customer service and cost saving solutions. 


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Please reach out at your convenience so we  can discuss your project.  

 8546 Sepulveda Blvd, North Hills, CA 91343 



(818) 457-6102


Monday - Friday: 8am - 5pm

Saturday - Sunday: Closed