Note: Wired for 230V, 60 Hz. Welch 3 Series DirecTorr Direct Drive High Vacuum Pump Dual Stage Rotary Vane with KIP Fluid Control Valves. With Franklin Motor: 1603007402. Voltage: Single-Phase, 115/230V, 3.8/1.9 FLA, 60 Hz, S. Parts are hand marked and Serial Numbers Recorded to prevent fraud. The Welch 3 8910 Direct Drive High Vacuum dual stage rotary vane mechanical vacuum pump offers an excellent ultimate pressure of 1×10-4 Torr. These Pumps (liquid, other) are commonly used for vacuum furnace evacuation, backing turbomolecular Pumps (liquid, other), backing diffusion Pumps (liquid, other), 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 Welch 3 8910 DirecTorr Direct Drive High Vacuum Pumps (liquid, other) have a pumping speed displacement of 3 CFM.