Where is the low pressure part of the pump located?

The low pressure part of the pump is located at the impeller eye. This area is critical in the operation of centrifugal pumps, where fluid enters the pump. The impeller eye is designed to have a relatively low pressure, which helps to draw the fluid into the pump. This low pressure at the eye of the impeller is essential for maintaining the flow of liquid through the pump, facilitating an effective transition from the inlet to the outlet.

In centrifugal pumping systems, as the impeller rotates, it imparts energy to the fluid, increasing its velocity and thus creating a high-pressure zone at the pump's outlet. The difference in pressure between the impeller eye and the outlet is crucial for the proper functioning of the pump; the low pressure at the eye allows ambient fluid to be sucked into the pump while the higher pressure forces the fluid out at the other end, maintaining continuous flow.