... built-in PIC controller, it can automatically adjust the pump’s rotating speed and switching according to pipeline pressure, ... Advantages of Equipment 1. It is suitable for regular pump, sewage pump, realizing the control of as many as 7 pumps. ... in oil pipeline ,oil house, oil pump station,etc5 Waterworks, water supply pump station6 Sewage and wastewater disposal7 Large square, park grasslandand ...