Page 243 -
P. 243

The  Practical  Pumping  Handbook  ............................................................

      13.3.2  Viscous performance correction for larger pumps (over 100
      gpm)
                                             -
                                  ~
               I00  ._--     ---  ~~~~~.~.~          -;
               90=:-              t   :   :   l - -      L   .   L   ,
           o                            ,
           <   80                                        '     .L_.J
           Ir     "                                      ~   ~  -O.6,Q,   I
           l:Z:l   70  "          ~                      ]._>_   -o.e,,  Q.   '
                  _               .                           -l.Ox  Q.   :
        r/~                                     I            \  -12  ,Q.
        m      60.             ~             -   t                 1~  ==
               I00.:   . . . .    l    9 i  -  i  :.
        ;'.'~ ~  9o-i-  ~     ~      ,                   ....    i.,..






        a~     "~  i  i  i  i  1111  ii


               40                       I.      ,,  i\i      iiiii

               30      '   "   '   '   ~   '   i~--
               20"             .....   1"-                       1

                                                                         600
                                                                   /~;   3oo
                  "-----"                                             ~,.  L:~)O
                                                                       ,,-  150
                                                             ~~~~.   "   ,o
                                                                         60
                                                                   -
                                                                 ~




           ~      "--------

              eoo ~'      /
              ,400 .~                                              _\_  _  _
              300  ",
              200"
               ,%o: c                                                 \

           I=   ':'  VIISC~SIT~"  SSIU                                  ~o
                  .  ,  ,  .~._ L . . ~ . . ~  L . J._L. t . . . .
                 I    1.5   2   3   4   5   6  7  8  g  I0   15   20   30   40   50  60  "R)8090KX)
                                  CAPACITY   IN  100   GPM
      Figure  13.4:  Performance  correction  chart  for  large  pumps  (Reprinted  with  permission  of the
      Hydraulic  Institute)


      m  222
   238   239   240   241   242   243   244   245   246   247   248