In this particular post, we will help guide our audience in helping them to identify varnish used in hydraulic lubricant. As part of a small segment of the discussion, we frequently bring up the subject of varnish formation, oil oxidation production and insoluble solid contaminant/particles, and how does it helps in the removal of the varnish.
In this segment, we would like to show how varnish is formed, its properties and how does it cause harm to your system.
Sample #1: In this sample, we've collected similar amount of hydraulic sample in term of vol. (used/brand new) for the illustration of some of its physical properties, and how does it cause harms to your system.
Photo on the left bottom: You can see the formation of sludge, varnish and oil oxidation product when the hydraulic oil are cooled to room temperature, left to rest for a while
Photo on the right: No formation of sludge, varnish and oil oxidation product when a sample of oil are left to cool to room temperature, even after being left to rest for a while.
Sample #2:
Photo on the left: the same oil sample that has been used for a no. of hours - you can observed that the varnish is "stuck" and "stick" onto the wall of the sampling tube even when the turn upside-down. This indicate the phenomenal that oil varnish is "sticky", polar in nature, and this is the root cause of servo valve stoppage, hydraulic failure and high reading when Membrane Patch Colorimetry ("MPC") testing are carried out and done.
Photo on the right: No formation of varnish on the wall of the test-tube even when the test-tube are tided over. There is no formation of varnish, in the oil sample, even when the oil sample are left to stand for a few hours, due to the presence of sufficient level of oil additive in the oil.
Sample #3
Photo on the left: the same oil sample that has been used for a no. of hours - you can observed that the varnish is "stuck" and "stick" onto the wall of the sampling tube even when the turn upside-down. This indicate the phenomenal that oil varnish is "sticky", polar in nature, and this is the root cause of servo valve stoppage, hydraulic failure and high reading when Membrane Patch Colorimetry ("MPC") testing are carried out and done.
Photo on the right: No formation of varnish on the wall of the test-tube even when the test-tube are tided over. There is no formation of varnish, in the oil sample,
Sample #4
Description of the Photo:
In the following photo, we would like to showcase the condition of the collector chamber of the KLEENTEK: Electrostatic Oil Cleaner ("EOC"), EOC-R6SP - cleaning chamber during a routine changing of the cartridge collectors.
On the right hand side of the cleaning chamber: A used and contaminated cartridge collectors, that is due to replacement. Carbon insoluble solid particles could be observed being collected near the electrode plate of the cartridge collector, when the cleaning lids of the cleaning chamber is removed.
On the left hand side of the cleaning chamber: A brand new, newly installed cartridge collectors has been installed into the cleaning chamber of the KLEENTEK: Electrostatic Liquid Cleaners (ELCs), ELC-R6SP with a brand new cartridge collector.
For more information on how KLEENTEK: Electrostatic Oil Cleaner ('EOC) can helps you and your organization to remove oil oxidation products, varnishes and insoluble contaminant, please contact us at enquiry@focusmachinery.com.sg. And one of our representatives will get in touch with you.
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