Technical parameters

Application (table) The AT pumps are designed for operation at the ambient temperatures of 5 to 300C. The pumps are fitted with a very effective separation system, which separates oil mist from the outlet air. Thanks to this feature they do not pollute the environment with oil mist. They can be used for pumping pure air or other inert gases. When equipped with a WF filter, air with dust or solid particles can be pumped as well.   Features reliable operation in the whole range of fore vacuum direct drive clean outlet air silent operation and low vibration built in cut-off valve air cooling possible to adjust to various types of power supply   Operation mode AT6B, AT10B, AT21B - oil returns during pump operation, continous or intermittent operation possible in the range of pressures: 2 ÷ 400 hPa. AT21 - oil returns during standstill, only intermittent operation possible in the range of pressures: 2 ÷ 1000 hPa. AT21A - oil returns during pump operation, continous or intermittent operation possible in the range of pressures: 2 ÷ 1000 hPa. AT63B, AT100B, AT160B, AT250B, AT400B, AT630B - oil returns during pump operation through float valve, continous or intermittent operation possible in the range of pressures: 1 ÷ 600 hPa.

Technical parameters

Application (table) The BW vacuum pump is an oil- sealed, double-stage, rotary vane vacuum pump with a direct drive which transmits torque from the electric motor to the rotor. They can be used both for continuous and intermittent operation and can work in the pressure range from 30 to 1x10-2 hPa in the former case . In the latter case the pressure can range from atmospheric to (about 1000hPa) do 1x10-2 hPa The pumps of this type are intended for operation in the moderate climate at the ambient temperatures ranging from 10 to 400C. They can work separately or act as backing pumps for diffusion, turbomolecular and cryogenic pumps.   Main features direct drive compact design low level of noise and vibrations optimal lubricating in a closed cycle with continuous filtration of oil availability for pumping aggressive gases built-in anti-suckback valve preventing oil backstreeming and aeration extended life expectancy thanks to special treatment operation at the ambient temperatures ranging from 12°C to 40°C operation as a single unit or as a back-up pump no water cooling required suitable for different power supply systems   Symbols BW- double stage vacuum pump 16, 25, 40, 63, 100, 200 denote nominal pumping speed expressed in m3/h.