The KQDSE seriesofhorizontal intelligent constant pressurefrequency conversion pump unit adopts a combination offrequency conversion speed regulation and automatic control technology, which can achieve constant pressure water supply throughtheconnected pressure transmitter. Thewhole machine is mainly composed of KQDS pump, controller, sensor, pressure tank, five-way check valve, and axial seismic pressure gauge, etc. It has characteristics such as stable performance, efficient energy conservation, fully automatic intelligent control, low noise, corrosion resistance, compact structure, beautiful appearance, small volume, and light weight.