1.Introduction to QDX Small Submersible Pumps:
The QDX small submersible pump consists of pump, seal and electric motor. The electric motor is located in the upper part of the electric pump and is a single-phase or three-phase asynchronous motor. The pump is located in the lower part of the electric pump and is a centrifugal impeller and volute structure，between the pump and electric motor. The double-end mechanical seal is adopted, and the “O”-shaped oil-resistant rubber seals are used as static seals at each fixed stop. The clear water submersible pump shaft is hard chrome-plated, which effectively improves the wear resistance and corrosion resistance of the shaft and facilitates the maintenance and disassembly of the impeller. The motor is equipped with a thermal protector, which can disconnect the power protection motor by itself in case of lack of phase, overload, and overheating of the motor.