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> The term is Peristaltic.They're also used in inkjet printers for head priming/cleaning.
>
> "produced by the successive contraction of the muscular fibers of
> their walls, forcing their contents onwards; as, peristaltic
> movement. "
>
> This style pump offers dosing or low volume delivery of the fulids in
> question. Commercial dishwashers use these for soap.
>
> Not really high pressures, but higher than some other styles.