1.Impeller, guide vane model through the model experiment, the pump efficiency can reach about 85%.
2.The reasonable choice of the type of motor punching, reduce manufacturing costs, and the shape of the slender motor is conducive to improving the efficiency of pump.
3.Using multiple independent rubber seals used in series, to ensure reliable cable sealing device, and the cable was lateral sealing, the cable and cable sheath made of integrated structure, so that even in the outside of the cable sheath damaged, can still maintain good sealing, effectively prevents water from entering the motor cavity.
4.The connection box and the motor chamber are completely separated by the seal, even if the cable is damaged, it will not cause the leakage of the motor cavity.
5.Motor stator with F insulation (15 degrees C), each phase and with overheating overload protection, motor internal design leakage, bearing temperature rise protection.
6.Cylindrical roller bearings, tapered roller bearings to bear axial force and radial force; and to ensure that the rotating shaft of the cantilever is very short, reduce the deflection of the shaft, increase the seal and bearing life, reduce vibration, making the operation smooth.
7.Using multiple mechanical seals, to ensure that the motor cavity does not leak. Oil chamber of the oil in the lubrication of mechanical seals at the same time, the mechanical seal of the heat away from the surface of the friction pairs.
8.Pump pumping water through the motor shell, the electric motor cooling.
