Аннотация
Mathematical model for new design of EHD-generator-reducing valve of high efficiency, necessary for plant installations allowing to calculate a flowing part of stage at optimum characteristics and parameters of working medium is elaborated. The analysis of processes in stages aiming at optimum mode of work of EHD-generator-reducing valve revealing is conducted. Optimum mode has place when there is a equality of kinetic and potential used energies in each stage.