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Figure 7.3: Typical impeller thrust loads

involved, the major loads are a result of the hydraulic forces acting in
the pump casing at the impeller.
The axial thrust created in a horizontal end suction process pump is
predominantly from the hydraulic forces acting on the front and back
of the impeller. The magnitude and direction of the resultant axial
thrust will depend on the impeller design and flow conditions.
In most instances the resultant axial thrust will be towards the pump
suction and is a result of the pressure on the back shroud overcoming

Figure 7.4. Closed impeller thrust loads

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