Abstract: A pump suitable for use with delicate fluids such as food products. The pump includes a casing having an internal cavity that defines a pumping chamber, an inlet and an outlet port, a first and second pumping rotors mounted for rotation in the casing, each pumping rotor including a first set of angularly spaced apart projections and a second set of angularly spaced apart projections. The first and second sets of projections of one rotor are in a condition of mesh with the first and second sets of projections of the other rotor, respectively. This feature allows one rotor to drive the companion rotor, thus eliminating the need of separate drive gears.