Page 254 - Centrifugal Pumps Design and Application

Slurry Pumps 227

An approximate comparison of hardness values of common ores and
minerals is given in Figure 13-1.
Wherever possible, the hardness of the pump liquid end metal compo-
nents should exceed the particle hardness. It should be noted that the
measurement of hardness is not the only criteria and that the structure of
the metal material itself has to be considered. An example of this is the

Figure 13-1. Approximate comparison of hardness values of common ores and
minerals.