housing 1 having an inlet opening 2 and an outlet opening 3 and arranged one after another and connecting to one another a convergent nozzle 4 a flow through passage 5 and a divergent nozzle 6 the flow through passage 5 accommodates a frustum conical baffle body 7 which establishes a local flow constriction 8 having an annular cross sectional profile design the baffle body 7 is held to a rod 9 coaxially with the flow through passage 5 rod 9 for example is attached to stud 10 mounted to divergent 6 near inlet 2 the hydrodynamic flow of a mixture of liquid components moves along the arrow a through the inlet opening 2 and the convergent nozzle 4 to enter into the flow through passage 5 and moves against the baffle body 7 further along the flow passes through the annular local constriction 8 when flowing about the cone shaped baffle body 7 a cavity is formed past the baffle body which after having been separated the cavity is disintegrated in the flow into a mass of cavitation bubbles having different characteristic dimensions the resulting cavitation field having a vortex structure makes it possible for processing liquid components throughout the volume of the flow through passage 5 the hydrodynamic flow moves the bubbles to the increased pressure zone where their coordinated collapsing occurs accompanied by high local pressure up to 1500 mpa and temperature up to 15 000 u00b0 k as well as by other physio chemical effects which initiate the progress of mixing emulsification homogenization and dispersion after the flow of a mixture of liquid components is processed in.