A Comparison of Hydraulic Couplings with the Silcon Controled Regulator in Oil Pump Units

The oil pump units in operating long-distance pipelines are regulating the speed with the hydraulic coupling and silicon control series regulators in order to save energy, The author thinks that the total efficiency is an important item in appraising the technical and economical index of a regulating manner. He has made a comparison between the two methods as to their advantages as well as disadvantages for reference in your selection.