Abstract: A centrifugal pump utilizing laminar action induced by a vaneless impeller and having a minimal drag front plate which cooperates with the circular rotor. The smooth surface of the concave face of the circular rotor has no protrusions or vanes and approximates an Archimedian curve. Material entering the intake port of the front plate is diverted about the rotating circular rotor and redirected in an outwardly direction along the minimal drag interior surface of the front plate to the discharge port of the output housing. The narrowing of the interior surface of the front plate in a radially outward direction with respect to the concave face of the impeller helps the pump to maintain a constant volumetric flow rate.