Welch 1400 DuoSeal 0.9 cfm 0.1 Micron Belt Drive Dual-Stage Pump

Now every Welch 1400 pump we sell comes complete with a Welch 1417 oil mist exhaust filter (a $170.90 value), see Welch's website below for more details.

https://welchvacuum.com/products/post-pump-protection-filters-1417

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.

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.

https://welchvacuum.com/products/duoseal-1400

Specifications

 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
 0.9 cfm

 Oil capacity 0.63 quart / 0.6 liter

 Ult. vacuum pressure
 0.1 micron

 Motor speed 580 rpm

 Intake ID (vacuum connection)
 7/16 inch

 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

 Compliance CSA