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 1x10-4 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. These Welch 3 8910 DirecTorr Dire.This item is in the category "Business, Office & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Rotary Vane Pumps". The seller is "alamedaauction" and is located in this country: US. This item can be shipped worldwide.