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Welch™ Gemini™ Dry Vacuum Pump: Model 2050

Economica, go-anywherel pumps with advanced chemical resistance

Manufacturer: welch™  2050B01

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Catalog No. 12-584-52

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Description & Specifications


Horsepower 0.005hp
Voltage 115V
Hertz 60Hz
Height (English) 7.5 in.
Height (Metric) 19.1cm
Width (English) 4.5 in.
Length (English) 7.6 in.
Length (Metric) 19.4cm
Shipping Weight (English) 7 lb.
Shipping Weight (Metric) 3.2kg
Includes AC/DC adapter
Pressure 253mbar
Flow Rate 8.5L/min.
Electrical Requirements 115V 60Hz
For Tube Size (English) 0.39 in.
For Tube Size (Metric) 1cm
Model 2050
Plug Type North American
Weight (English) 5.3 lb.
Weight (Metric) 2.3kg

Ideal for organic filtration/degassing applications using aqueous solutions, select solvents, and moderate pH acids and bases. High-performance wetted components will not corrode. Use in lab or field.

  • Lightweight, compact and portable
  • Oil-free
  • Chemically resistant wetted parts (PARA heads and Viton™ diaphragms, tubing and valves)

Fixed vacuum


Filtration, aspiration, degassing, and desiccation.