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Peristaltic Pump
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A Peristaltic Pump, or roller pump, is a type of positive displacement pump used for pumping a variety of fluids.
The fluid is contained within a flexible tube fitted inside a circular pump casing. A rotor with a number of "rollers", "shoes" or "wipers"
attached to the external circumference compresses the flexible tube. As the rotor turns, the part of tube under compression closes thus forcing
the fluid to be pumped to move through the tube. Additionally, as the tube opens to its natural state after the passing of the cam fluid flow
is induced to the pump. This process is called peristalsis and used in many biological systems such as the gastrointestinal tract.
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