The Leybold D4 D4AC PFPE Chemical AC Trivac is especially prepared for operation with PFPE Oils. The use of PFPE Synthetic Lubricants offers superior characteristics where chemical and oxidizing influences occur. The Leybold D4 D4AC PFPE AC dual stage rotary vane mechanical vacuum pump offers an excellent ultimate pressure of 1x10-4 Torr. These pumps are commonly used for pumping of corrosive or aggressive media, backing turbomolecular pumps, backing diffusion pumps, backing roots pumps, turbo or cryo pumps, rotary evaporation, refrigeration system evacuation, epoxy degassing, vacuum sterilization, backing mass spectrometers, freeze drying, vacuum centrifugal applications, vacuum distillation, space research, and other vacuum processes. These Leybold D4 D4AC PFPE Chemical AC vacuum pumps have a pumping speed displacement of 4.5 CFM.