Page 132 - Know and Understand Centrifugal Pumps
P. 132

The System Curve
                    FEET I
                        H





              HP2
                                                          PUMP
                                                           BEP
                                                           HERE
              H PI

                          I               I





                        0
                          0             Q BEP                  Q
                                                  b         GPM
                                    FLOW  X
     Figure 8-16
       migrates  again  on its  curve, this  time  toward  the  right,  crossing the
       BEP and comes to rest on the right end of its sweet zone. See the next
       graph (Figure 8-17).







                                                      HAPPY  ZONE

              HP2









              Hs





                          0           Q   Q   Q                Q
                                   HOT   BEP  COLD          GPM
     Fiaure 8-1 7



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