Standard Vacuum Oil Purifier (VOP Series)

What it removes

The VOP series takes out the three things that end the life of a hydraulic, turbine or lube oil charge: free and emulsified water, dissolved gas, and particulate down into the fine range. Treated oil leaves the unit at NAS 6 cleanliness with water at or below 50 ppm. That is the point at which a mineral oil stops promoting corrosion and stops losing film strength under load.

How it works

Oil is heated under vacuum and spread into a thin film. Chamber pressure sits far below the vapour pressure of water, so water boils off at a temperature well under 100 degrees C and the oil is dehydrated without being cooked. Dissolved gases leave with the water vapour. A fine filter downstream of the vacuum chamber catches the particulate the water carried in. The low working temperature is what lets the unit treat oil that is still in service rather than a drained charge.

Where it is used

Three jobs cover most of the installed base. A steel plant with water ingress into its hydraulic oil runs the unit off-line while the mill keeps working. A power station with a leaking turbine shaft seal treats No.46 turbine oil in place instead of replacing the charge. A gear oil that had drifted past its reuse limit is brought back to specification instead of being written off.

Options and service

Trailer-mounted and stationary frames. On-line connection to the reservoir, so the machine keeps running while the oil circulates. Spare element sets, commissioning and operator training on site.