مضخة موتور معلبة من نوع الدوران العكسي

Reverse circulation type canned motor pump is used for liquids whose saturated vapor pressure characteristic curve is low. This kind of liquid is very easy to vaporize if it returns to the inlet of the impeller after cooling the motor. After the reverse circulation passes through the motor, it returns to the gas direction area of the inlet tank from the tail. A regulating valve is set in the reverse circulation pipeline for throttling, so as to maintain the pressure required by the liquid in the motor, and at the same time, it has the function of emptying the pipeline: