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Welch 1.2 cfm DryFast Ultra 2-Head Diaphragm Chemical Duty Pump


Welch 1.2 cfm DryFast Ultra 2-Head Diaphragm Chemical Duty Pump

$ 3,100.00 $ 3,160.00

  • Welch DryFastTM PTFE oil-free diaphragm vacuum pumps enable precise vacuum control for organic evaporations with exclusive Advanced Vapor Management (AVM). Oil-Free, portable, chemical resistant, 2-head diaphragm design simplifies maintenance, no more frequent and costly oil change. Constructed with solid PTFE heads, PTFE diaphragms, Kalrez valves and utilizing fluorinated plastics on all wetted surfaces, these economical DryFastTM vacuum pumps are perfect for tough lab applications. These pumps are made in USA with one year warranty from Welch.
  • Free three feet 3/8" white premium food grade silicone vacuum tubing ($19.99 value) included.


    • Advanced Vapor Management (AVM) for precise setting of vacuum level
    • Vacuum to 2 torr (2.6 mbar, 266 Pa)
    • Strips DMF fast
    • Chemically resistant
    • No oil changes, no cold trap required for water/alcohol solutions
    • Virtually maintenance-free solution for laboratory environment
    • Smaller footprint than oil pump saves lab space
    • Designed to work with rotary evaporators


     Electrical requirements
     110 Volts 60Hz single phase 1/5 HP, 150 watts
     Application  Rotary evaporation/distillation (low volatility solvents < 160oC B.P., ~2 liter), centrifugal
     concentrators, vacuum ovens (mid-size), pumping harsh vapors & gases.
     Pumping rate
     1.2 cfm
     Ult. vacuum pressure
     2 torr / 2.7 mbar
     Maximum vacuum  29.85 in. Hg
     Intake (vacuum connection)
     3/8" hose barb
     Exhaust  1/4" hose barb
     Adjustable vac./gas ballast  Yes
     Pump dimensions (LxWxH)
     13.8 x 6.8 x 8.8"
     Shipping dimensions (LxWxH)
     21 x 14 x 15"
     Pump weight
     21.25 Lb
     Shipping weight
     25 Lb
     Certification  CSA
     Manual  Click here to download

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