As a solids control equipment of the third stage in drilling operation, desilter is used to remove solid particles of 20－40 µm in drilling liquid. The desilter of this type that has been reformed many times on the applications for years is reliable in technical performance and provides very good treatment results. Its water cyclone is of long service life and stable performance. It is applicable to various kinds of drills in the oilfields.
   The inlet and outlet of water cyclone can be connected very quickly, which is convenient for replacement and maintenance.