The Welch 1399 DuoSeal Belt Drive Rotary Vane is a durable vacuum pump with a superior vapor handling capability. The Welch 1399 DuoSeal Belt Drive single stage rotary vane mechanical vacuum pump offers an excellent ultimate pressure of 1x10-2 Torr. These pumps are commonly used for vacuum furnace evacuation, backing turbomolecular pumps, backing diffusion 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 Welch 1399 DuoSeal Belt Drive Pumps have a pumping speed displacement of 1.2 CFM, operate on 115 VAC, and product number 1399B-01. They come with a bottle of DuoSeal Oil and a power plug. Accessories for this pump are available on this website. For complete operating instructions scroll down to (AVAILABLE DOWNLOADS:) and download the Users Manaul.