The TURBOVAC i/iX range is designed to deliver optimal performance, with higher pumping speeds and offers lower initial and operating costs. TURBOVAC i/iX series turbomolecular pumps have six different pumping speeds: 90 l/s, 250 l/s, 350 l/s, 450 l/s, 850 l/s, and 925 l/s, corresponding to different processes. need.