“Is there any way to clean our oil up to two ISO codes other than with loop filtering?”
Best practices recommend that lubricants are filtered when they are transferred from one container to another or to a machine. This practice can improve lubricant cleanliness with just a single pass. The filter must have a high beta ratio (greater than 200) at the right micron size to achieve the expected cleanliness level. Of course, the use of a high-efficiency filter will require the proper lubricant flow rate and pressure according to the viscosity and volume to be filtered.
