https://www.sinotechmachinery.com/products/3-phase-decanter-centrifuge-separator/ 3 Phase Decanter Centrifuge Separator Principle of three-phase horizontal screw decanter centrifuge: Due to the different specific gravities of the light liquid phase, heavy liquid phase and insoluble solid phase in the material, the centrifugal force exerted on the three phases of the material is different.