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Question:

Does the lift of pump relate to the water level of import and export?

Is the pump head related to the water level of the entrance and outlet? If the water level of the inlet and outlet is on the same level, but higher than the height of the pump, does the pump lift need to be coupled with this height difference?

Answer:

What's the relationship?! When the inlet level is low, the head is slightly higher than the liquid level!
The head of centrifugal pump has nothing to do with the water level of the inlet and outlet. When the water pump installation position is lower than the pool water level, you can enter the pump by gravity, and when the pump installation position is higher than the water level of the pool, it depends on the pump suction process, the effect is good.
Pump head refers to the inlet and outlet pressure head, that is to say, the entrance resistance greatly affects the pump lift, of course, this inlet resistance has a degree, too large water pump does not bring water or cause water pump cavitation. If the water level at the pump inlet is the same height, the inlet flow resistance of the pump may not be considered.

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