This kinds of pumps boost offer water to high buildings The vertical single-stage centrifugal pump can solvethe problem of low pipe pressure. It is more advanced than horizontal centrifugal pump. It adopts advanced mechanical seal and the axes of motor is fixed with imprellers directly, soit is of lessleakage, high efficiency, using less electricity. It has comp-actconstruction, small volumn, light weight, convenien maintaing. It alsocan be used in seriesaccording to suction lift and flow rate. It will replace the regularcentrifugral pump.