Products Rotary Vane Pumps Rotary Vane Pumps for vacuum (suction) up to 150 mbar. and Rotary Vane Pumps for pressure up to 1000 mbar. A description of how the pumps works can be found here. An overview of the KLEEblower product program can be found here Rorary vane pumps for vacuum Max. airflow 48 m3/hour, max pressure 1000 mbar Max. airflow 48 m3/hour, max. vacuum 150 mbar. Also see Rotary vane vacuum pumps. Rotary vane pumps, compressor Vacuum. Max. airflow 48 m3/hour, max. vacuum 150 mbar. Also see Rotary vane pumps blowing (compressor).