Lobe pumps are equipped with two lobe rotors having a singular geometrical shape that emphasizes the positive aspects of this design and annulling the negative ones, as gas recirculation.

Moreover, the shaft sealing is ensured by a dynamic gasket preventing any leakage.
These lobe pumps should always be used together with a primary lubricated rotary vane vacuum pump increasing the total flow rate at low operating pressures and reaching a great improvement of the final pressure.

Main application fields