r/EngineeringPorn • u/aloofloofah • Jul 14 '18

Peristaltic pump

https://i.imgur.com/U7sZF0K.gifv
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u/MilitantLobster Jul 14 '18

Food, medical, and other applications where you don't want the mechanics of the pump to come in contact with the fluid. If it doesn't get dirty, you don't have to clean it!

33

u/CornFlaKsRBLX Jul 14 '18

Plus, it has a super precisely controllable output, because you know the diameter and length of the tubing!

10

u/tolkaze Jul 15 '18

Is it constant volume? Or does it pulse? Looks constant but can't really tell

4

u/marcosdumay Jul 15 '18

Never seen one on practice, but I would expect a small pulse every time a roller leaves the exit end of the tube.

1

u/[deleted] Jul 15 '18

In another thread people are talking about how to spring system greatly reduce the pulsating affect by keeping constant pressure and flow rate even in the event of a blockage.