Pumps centripetal

An alternative to the centripetal pump is the skimmer pipe, by means of which the centrate is skimmed or scooped from the pond surface in the bowl. The position of the skimmer in the bowl can be altered from the outside while the bowl is rotating, and so afford a means of pond depth adjustment during operation. This is done using a lever on the outside of the casing attached to a pipe positioned over and through an annular plate mounted on the front face of the front hub of the bowl. The skimmer pipe thus dips into the bowl pond 

---

The first centripetal pump resulting from non-Newtonian properties of liquids was suggested by Marcus Reiner in the 1950s. 

A Separation zone 4 Centripetal pump 11 Regulating ring... 

As the polymer is sheared, normal stresses will generate a centripetal pumping action. Thus, the polymer can be extruded through the central opening in the stationary plate in a continuous fashion. Because normal stresses generate the pumping action, this machine is sometimes referred to as a normal stress extruder. 

---