Vacuum Pump Systems
Coating Systems
The RUTA pump systems described here are vacuum pump systems consisting of Roots vacuum pumps from the RUVAC series in combination with a fore vacuum pump. They have been designed for rough and medium vacuum operation, i.e. for the pressure range from atmospheric pressure down to 10-4 mbar (7.5•10-5 Torr). On the intake side RUTA pump systems consist of Roots vacuum pumps. Further compression to atmospheric pressure may be performed either by oil-sealed or Dry Compressing vacuum pumps or Roots vacuum pumps with pre-inlet cooling.
Fore Vacuum Pump Systems
oil-sealed
Usually RUTA vacuum systems are combinations of Roots vacuum pumps of the type WA, WS and RA or WAU and WSU with integrated bypass line with oil-sealed backing pumps for conventional generation of the vacuum. Single stage arrangements are capable of delivering pumping speeds of 250 to 16 000 m3/h (147 to 9424 cfm). Higher pumping speeds can be attained by paralleling several pumps. The attainable operating pressures depend on the number of pumping stages.