1、 Product Introduction:
The QS series submersible electric pump is a small and reliable water lifting tool designed by our factory based on years of experience in producing submersible electric pumps and market demand. It integrates the machine and pump and operates underwater. It is widely used in agricultural irrigation, industrial and civil construction sites' water supply and drainage systems, fountain projects, as well as water diversion in hilly and mountainous areas, and drainage in low-lying areas. After being put into the market and widely used by users, it has fully demonstrated its convenience, reliability, durability, economy and other characteristics.
Its characteristics are: the motor and water pump are assembled into one, the structure is simple, and the installation and disassembly are easy, with a small installation area. The main advantages are: reliable operation, durability, easy use, high power, few faults, and low maintenance costs. As long as the motor is filled with clean water, it can operate normally. At present, our company can provide users with a lift of 5-180 meters; Flow rate of 10-250 cubic meters per hour: dozens of models of submersible electric pumps with motor power ranging from 0.55 to 11KW.
QS submersible electric pump execution standard: GB/T25409-2010 "Small submersible pumps"
2、 Usage conditions:
1. Power requirements: The frequency should be 50HZ, and the rated voltage at the motor end should be ensured to be 380V+5% three-phase AC power supply.
2. Water quality requirements: Non corrosive clean water with a water temperature not exceeding+30 ℃, a volume ratio of solid impurities not exceeding 0.01%, and a particle size not exceeding 0.2 millimeters; The pH value of water should be between 6.5-8.5.
The electric pump should be fully immersed in water for operation, installed upright, and submerged to a depth of not less than 0.5 meters
3、 Technical specifications:
1. Model meaning:

4、 Structure Description:
1. QS submersible electric pump consists of two parts: water pump and submersible motor.
2. The water pump is composed of impeller, guide vane (guide shell), inlet joint, outlet and other components. The fixing of the impeller adopts a conical sleeve or key.
The submersible motor adopts a water filled structure, with the inner cavity filled with clean water, mainly used for motor cooling and lubrication of sliding bearings; The stator winding of the motor adopts water-resistant electromagnetic wire, which has good water resistance performance, and the rotor is a squirrel cage structure. The upper end of the motor is equipped with a water injection hole and an exhaust hole, and the lower end is equipped with a water discharge hole. The lower part of the motor is equipped with thrust bearings and thrust discs, which mainly bear the axial force of the pump and the self weight of the rotor. The rotor shaft is equipped with a rubber sand slinger and a skeleton oil seal at the insertion point, forming a sand control mechanism that can effectively prevent sediment from entering the motor.
Product parameters: