Cart 0
< Go Back

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

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

  • $ 2,855.00

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.


    • 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

We Also Recommend