The Welch DuoSeal vacuum pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.
The Welch 1400 DuoSeal belt drive rotary vane is a durable vacuum pump with a superior vapor handling capability. It offers an excellent ultimate pressure of 1x10-4 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 1400 DuoSeal Belt Drive Pumps have a pumping speed displacement of 0.9 CFM.
Electrical requirements 110 Volts 50/60Hz single phase, 1/3 HP 250 watts Type Belt-drive rotary vane mechanical vacuum pump Application Rotary evaporation/distillation Pumping rate 1.9 cfm Oil capacity 0.63 quart / 0.6 liter Ult. vacuum pressure 0.1 micron Motor speed 580 rpm Intake ID (vacuum connection)
Intake/exhaust thread size 3/4-20 Adjustable vac./gas ballast Yes Pump dimensions (LxWxH)
17.8 x 9 x 12.6"
Shipping dimensions (LxWxH) 20.5 x 13.8 x 14.5" Pump weight 70 Lb Manual Click here to download