The operation principle of the helical pump is a helical rotor of steel with circular profile that rotates inside a stator with double the pitch, that is made of an elastomer, normally vulcanized inside a carcass of carbon steel.

Depending on the geometry of the rotor and the stator, sealed cavities between suction and discharge are formed. The opening and closing of these cavities creates a depression in the suction nozzle, which causes the fluid to be suctioned and develops a volumetric flow directly proportional to its rotation.

The Helical Pumps operation principle allows the pumping of highly viscous fluids, chemically aggressive and containing solids up to a certain size, where the centrifugal pumps do not have a good performance.