What is lube oil purifier?

It is a purifier that separates two liquid substances based on their difference in density with the use of gravity disc to separate solid and water and sealing water as an operator with two-holed lower discs; one for water and other for oil.

What is the difference between fuel oil and lube oil purifier?

The main difference is that Lube oil (LO )purifier is used mainly for the separation of water and the fuel oil (FO ) purifer used mainly for the separation of sludge. Thus, Fuel oil (FO ) purifier run as clarifier in the most of the ship and Lube oil (LO ) system is run as purifer.