centrifugal pumps commonly used in sump pump applications
Cantilever Pumps are centrifugal pumps commonly used in sump
pump applications. They are available in horizontal and vertical configurations,
and many styles including submersible motors. They are frequently used in slurry
and solids handling applications. Cantilever pumps offer a number of advantages
specifically for use in watery or other liquid-filled environments. They have no
submerged seals, bearings, bushings, or suction check valves. The cantilever or
overhung shaft is supported by heavy-duty ball bearings that are located above
the pumped liquid. Many varieties of cantilever pumps are designed with
additional features to allow for long service life in demanding conditions. Some
employ a shaft-mounted agitator to stir settled solids, helping to maintain a
clean and maintenance free sump. Pumps life is increased due to this reduction of
cycling. Other types are designed to operate continuously, even when dry,
without wearing out. There are also a variety of material options for corrosion
and abrasion resistance.Cantilever pumps are available with a number of
different impeller types, which change the nature of the flow through the
pump.
Single stage impeller pumps have one rotor to impart motion to the
fluid. Double stage pumps have two impellers, and perform like two pumps linked
in a series. Large, multiple stage pumps are also available, which offer the
functionality of a number of pumps in a series.Aside from sump pump
applications, cantilever pumps are widely used in other industrial applications
where liquids or slurries are passed and processed. They can be found in
chemical processing plants, waste treatment facilities, in food processing,
paper and pulp making, steel and other metal processing, mining, and in power
generation including coal, nuclear and electrical generating stations.
2012-05-03
