Handling of fluids in food processing, pharmaceuticals & biotechnology need contamination free systems. Peristaltic pumps are best suited for this purpose. Also, in analytical chemistry, transfer and transport of samples and standards to various equipment need contamination free pumping systems.
Shear sensitive fluids such as curd, yogurt, blood & blood plasma products cannot be pumped employing the regular centrifugal pumps. The chopping action of the centrifugal pump is not recommended for such applications. Secondly, the pump head is a major source of contamination in these pumps.
Peristaltic pumps can pump fluids as viscous as 10,000 centi pose units. In peristaltic pumps only the pump tube comes in contact with the medium to be pumped. By selecting the right tube material, different pumping requirements can be met.
Pumping principle