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The  Practical  Pumping  Handbook           .......................   ~-.:N


      9.2  Vertical  turbine  pumps

       Vertical   Turbine   Pumps   have
        come  a  long  way  since  their
        humble    beginnings    in   the
        irrigation  field,  and  are  now  used
        in  a  wide  variety  of  applications.
       While  they are  still utilized  to  raise
       water  from  underground  aquifers,
        ponds,  lakes,  rivers  and  oceans,
        they  now  supply  such  industries  as
       Water  Treatment  Facilities,  Pulp
        and   Paper   Mills   and   Power
        Generating  Stations.  They  are  also
        an  integral  part  of numerous  Fire
        Protection  Systems,  as  well  as
        many  of  the  processes  in  the
        Petrochemical  Industries.

        These  vertical  diffuser  pumps
        come  in  a  variety  of  configura-
        tions.   The   lineshaft   driven
        Deepwell  Turbine  Pump  shown  in
        Figure  9.7  is used  in  a wide variety
        of applications  and  is  usually  built
        to   AWWA       standards.   The
        Submersible  motor  driven  pump  is
        most  frequently  used  to  raise  well
        water  from  underground  aquifers
        through  drilled  wells  in  rural
        communities.     Materials    of
        construction  of  these  pumps  are
        mainly  steel  or  cast iron  bowls  and
        discharge   heads,   and   bronze
        impellers.
        The  larger  Service  Water  Pumps
        are  primarily  used  on  municipal
        and   industrial   water   intake
       services.  In  addition  to  the  cast  Figure  9.7:  Oeepwell turbine pump
       iron  bowls  and  bronze  impellers,  (Reproduced with permission of G0ulds
       they  are  frequently  used  with  Pumps,  ITT Industries)
       stainless  steels  or  nickel  aluminum
       bronze.    The    columns     and
       discharge  heads  are  usually  supplied  in  steel,  and  can  be  designed  with
       the  discharge  nozzle  located  in  the  column  below  the  mounting  plate
       when  required.


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