The advantage of using coupling is that it can solve the misalignment problem between two shafts and reduce the vibration and impact when transmitting power. For domestic deep-well stainless steel submersible pump, coupling connection is also helpful to improve the working efficiency and reliability of the pump.
It should be noted that the specific submersible pump design may vary from manufacturer to model. It is recommended to consult the relevant product manual or consult the manufacturer for detailed technical specifications and connection information of a specific submersible pump.