German perrot pump perrot model perrot price

The most basic form of the perrot pump consists of two gears of identical size meshing and rotating within a closely fitted housing. The interior of this housing resembles the figure "8", with the two gears installed inside; the outer diameters and sides of the gears fit tightly against the housing. Material from the extruder enters between the two gears at the suction inlet, fills this space, moves along the housing as the teeth rotate, and is finally discharged when the two teeth mesh.