
106 Practical Centrifugal Pumps
Figure 5.16
Q–H and Q–η characteristic comparison of liquid with increasing viscosities
If the solid particles are fine in nature, they tend to form a homogenous mixture with
the liquid, the shape of the pump characteristics begin to seem like a pump handling a
liquid with higher viscosity.
The Q–H curves for pumps transporting mixtures of water and solids such as sand, slag,
sugar beet, potatoes, fishes etc. can only be determined by experiments.
The Q–H curves while pumping various mixtures formed by various percentages of
solids in the liquids can be compared with that of clear water and nomogram can be ...