Volume 5, Issue 4
Published: July 28, 2017
Is peristaltic the answer?

A quick internet search of the term peristalsis will swiftly lead to a screenfull of images of the human digestive system. More than just being a biology lesson however, this gives an insight into a form of pump design that is popular in a range of applications involving some of the most complicated media. The US National Library of Medicine’s MedlinePlus website defines peristalsis as “a series of wave-like muscle contractions that moves food to different processing stations in the digestive tract”. The same principle is also used in a peristaltic pump. As Dutch pump manufacturer and distributor Verder Group explains on its website: “The fluid is contained within a flexible hose or tube fitted inside the pump casing. The actual pumping principle is based on alternating compression and relaxation of the hose or tube, drawing content in and propelling product away from the pump."

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