Some people think that this design is a floating impeller design, and raise the question of whether the coupling and the motor shaft head can be welded together for use.
The answer is that this design does not require welding of the coupling and the motor shaft head, because the design uses a floating impeller design, which can float freely in the pump body and adapt to the needs of different water depths. If the coupling and the motor shaft head are welded together, it will limit the floating of the pump body and affect the efficiency and service life of the pump.
Therefore, it is recommended to adopt a split design according to the design requirements to ensure the floating and service life of the pump body.
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