The hydraulic parts of the pump body adopt sand-resistant structure design, and the number of stages is small, so the sand-passing capacity and service life are improved; Using permanent magnet synchronous motor starting torque, low voltage can be easily started; The whole machine is equipped with a new type of frequency conversion controller, which has high control accuracy and little damage to the motor.

QJ-YG series high speed deep well pump products have the following characteristics:
The hydraulic parts of the pump body adopt sand-resistant structure design, and the number of stages is small, so the sand-passing capacity and service life are improved;
Using permanent magnet synchronous motor starting torque, low voltage can be easily started;
The whole machine is equipped with a new type of frequency conversion controller, which has high control accuracy and little damage to the motor.
The power density ratio of the whole machine is high, the height of the pump is small, and the weight is lighter;
The integrated design of motor variable frequency drive has better heat dissipation, longer service life and soft start. The permanent magnet DC synchronous motor is adopted, the efficiency is at least 20% higher than that of regular deep well pump, energy saving and emission reduction: locked-rotor protection, and reverse operation can automatically remove foreign matters, and start automatically again:
This product integrates: overload protection, short circuit protection, undervoltage protection, overvoltage protection, lightning protection, surge current limit, reduction of power grid impact, anti-card machine protection, and automatic reversal to eliminate foreign matters to continue operation, output, input phase loss protection, input phase loss, continuous operation function, no water protection, timing start, over-temperature protection, automatic start after recovery, low noise, wide voltage use, etc;
Three-phase product voltage 300V-465V can be used without degradation of performance above 340V, single-phase product 120V-260V can be used without degradation of performance above 150V.