Leybold TRIVAC B oil sealed double stage vane pumps are well known and being used in all areas of vacuum engineering and are equally suited for both industrial production and research applications. The TRIVAC B pumps, used to generate a rough and medium vacuum or as backing pumps in pump combinations with Roots vacuum pumps or high vacuum pumps, have the ability of pumping down from the atmosphere. Key Features Dual-stage rotary vane technology Gas ballast valve for vapor handling Anti-suckback protection Low noise level operation Easy maintenance access Long service intervals Technical Specifications Pumping Speed Range: 4.8-75 m³/h Ultimate Pressure:10⁻⁴ mbar Operating Temperature:12-40°C Noise Level:52-65 dB(A) Motor Power:0.37-2.2 kW Oil Capacity:0.5-2 L