Slurry Pump
WH14AAAAAA0EN_04D.DOC JAN 04-W08
Desccription of operation
3/4
The way in which the hydraulic work is affected when the pump does not operate at BEP is
shown in Figure 4.3-2 and Figure 4.3-3 This is of decisive importance in slurry pumping.
Impeller vane inlet Pump casing nose
4
3
5
6
Figure 4.3-2 Operating outside BEP - At low load
3. Abrasion on the impeller vane's discharge side.
4. Vortices occur on the vane's vacuum side.
5. Vortices.
6. Abrasion caused by particles striking and bouncing against the surface.
Impeller vane inlet Pump casing nose
7
8
9
10
Figure 4.3-3 Operating outside BEP - On overloading
7. Vortices are formed on the discharge side of the impeller vane.
8. Abrasion occurs on the vacuum side of the vane tip.
9. Vortices.
10. Abrasion on the pump casing nose.
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