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Peristaltic Pumps

A pump is a mechanical device used to drive a fluid or gas from one place to another. In a peristaltic pump, the fluid is enclosed in a flexible tube that passes through a circular arc in the pump casing. Centered in the circular arc is a shaft with a roller bar that rotates around the pump casing. As the roller bar reaches the pump inlet, it compresses the flexible tube, forcing the liquid along the tube, ahead of the roller bar, until it reaches the pump exit. Peristatic pumps are commonly used in industries such as the medical field where it is desired that the fluid not come in contact with any of the pump components.