To achieve good dosing results that are reproducible, the pressure of the medium to be dosed (grease, oil or technical lubricants) must be limited upstream of the dosing valves to the optimum maximum pressure for the relevant application. The patented SOMA pressure balance system DAS 120/12 ensures, up to a maximum inlet pressure of 250 bar, that the medium pressure set on the outlet side is available to the dosing valves at a constant level and without pressure fluctuations. It is therefore predestined for use in supply systems for highly viscous media with low and medium pressure pumps.