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Hydraulic Oil Refurbishing

EHC/Phosphate Ester

Hydrolytic breakdown is one of the largest concerns facing today’s users of phosphate ester (EHC) lubricants. Hydrolytic breakdown occurs by exposing oil to heat and water during normal operation. Once out of OEM parameters, the oil requires specialized treatment to bring it back into spec.

Hydrolytic breakdown causes the formation of acidic compounds in the oil, resulting in an exponential rise in total acid number (TAN). Historically, Fuller’s Earth, or activated alumina, has been the recommended acid-scavenging media to address this issue.  However, both media’s have their own negative contribution to the oil.

Although an effective acid scavenging media, Fuller’s Earth has a history of leaching detrimental heavy metals back into the system. Activated alumina, also an effective acid scavenging media, creates salts in the oil. These salts adhere to metal parts, causing wear to surfaces. Over time, the leaching of heavy metals or the addition of salts into any system can lead to a higher TAN than before. Ion exchange technology can reduce both the TAN and resistivity without negatively affecting the oil.

Alaska Marine Cleaning has the technical expertise, equipment, and personnel to return our customer's out of spec oil to a like new condition. With the latest in ion exchange technology and flow rates to 20 gpm, Alaska Marine Cleaning can guarantee the short turnaround time our customers need. Alaska Marine Cleaning's ion exchange process has NAVSEA approval for use onboard U.S. Naval vessels.

Alaska Marine Cleaning has the equipment and technicians to flush any hydraulic system.

20 gpm Vacuum dehydrator 
20 gpm vacuum dehydrator

Hilco filters
If acid in your phosphate ester (Fyrquel) oil is a problem, Alaska Marine Cleaning has large ion exchange resin bed to quickly remove acid from large reservoirs.

Hilco filters
75 hp 190 gpm hydraulic flushing machine to clean newly fabricated systems or old systems that have been contaminated by wear, broken components or recently upgraded.


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