Multistage Centrifugal Pump Multistage Centrifugal Pump Overview
Rotodynamic pumps that make use of a rotating impeller to
increase the velocity of a fluid are known as a centrifugal
pump. Centrifugal pumps that feature two or more impellers are
known as a multistage centrifugal pump. Different impellers may
be mounted on a common shaft or they may be mounted on different
shafts. Multistage centrifugal pumps have two basic functions to
perform. The first function is producing a high lead. The second
function is to discharge the liquid in large quantities. For
developing a high head impellers are installed on the same
shaft. Impellers are placed on different shafts only when the
liquid is supposed to be discharged in large quantity. The
multistage pump is a more economical way of creating high
pressure with a single pump. Developing a centrifugal pump that
possesses a differential pressure of 150psid or more is quite
expensive to design and maintain. In a multistage pump, the
internal channels in the pump casi