Stepless speed governing screw pump            The electrodeless speed regulation is based on the original G screw pump to increase the speed regulation of the infinitely pole. Poleless speed regulating screw pump also uses motor to regulate speed. The only difference between the former and the electromagnetic speed regulating screw pump is that the former is manual, but the latter depends on magnetic field. These two kinds of screw pumps are equipped with such special motors in order to adjust the flow and pressure of the pump to meet their own requirements.            The relationship between flow rate and speed is linear. Compared with low-speed screw pump, high-speed screw pump can increase flow rate and head, but the power increases obviously. High-speed accelerates the wear between rotor and stator, which will inevitably lead to premature failure of screw pump. Moreover, the length of stator and rotor of high-speed screw pump is very short and easy to wear. The service life of the screw pump is shortened. Reduce the speed by reducer or stepless speed regulation mechanism, so that the reconnaissance speed can be kept within a reasonable range of less than 300 revolutions per minute. Compared with the high-speed screw pump, the service life can be prolonged several times.

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