How about the axial force of the single-stage centrifugal pump? Does the pump turn the shaft to the motor fan or to the impeller?
Dragonflies incite wings, resulting in increased air pressure under the wings, relative to the upper wing pressure reduction, resulting in upward force, so dragonflies incite wings will fly up. The water pump is the same, but the pump (above) is the upper pressure, the following pressure is small, causing axial force down.
Because the water right is a water inlet, the water outlet, water inlet is obvious at the bottom of the water inlet, low pressure, axial force should be downward direction, so we have to consider the axial force of this pump installation design, the general solution is a centripetal thrust bearing and impeller balance hole installation.
The axial force of single stage single suction centrifugal pump is the direction of the outlet (relative high pressure) to the inlet (relative low pressure). As shown above, the pump is turned to the impeller (downward) direction.
