Page 129 - Know and Understand Centrifugal Pumps
P. 129
Know and Understand Centrifugal Pumps
'A PUMP
U Q BEP Q
The System requires X Flow GPM
Figure 8-12
Next, we should find a pump who's BEP coordinates fall right between
the Hsl and Hs2 at flow X, as seen on the graph above (Figure 8-12).
With this information, the pump curve, coordinating with this system's
demands according to the two tank levels, is seen this way (Figure 8-13).
H BEP
1
lH I I
t 10 I V I I
0 Q BEP Q
GPM
Figure 8-13