202701 Self‐Cleaning Dry Vacuum System w/digital gauge, 115V 60Hz 1Ph, 2 Torr

PTFE Dry Vacuum Systems Self Cleaning
SKU: 202701
Manufacturer part number: 202701
$4,530.00
$3,749.99

Self-Cleaning Dry Vacuum Systems These chemical duty dry diaphragm pumping systems are typically used in evaporation applications, e.g. rotavaps. Self-cleaning air purge cycle at the conclusion of each run maintains consistent performance and extends service intervals. Dial up vacuum control and a handy switch for instant reaction to bumping / foaming conditions. Rugged PTFE construction of all contact surfaces.

Model 2027 digital adjustable high vacuum. Digital vacuum read-out, vacuum regulator, 2 torr ultimate vacuum for fast stripping DMF and other solvents with boiling point < 160 °C.

 Anti-bumping / foaming feature with  controlled evaporation rate • Rugged corrosion resistant PTFE construction • Self-cleaning for long life and repeatable performance • 2 torr (2.7 mbar) models strip DMF at 35˚ C bath temperature 9 torr models (12 mbar) models strip most common solvents • Programmable 2028 features walk away automation


Welch Self-Cleaning Dry Vacuum SystemsTM are complete vacuum solutions for rotary evaporation. All systems feature rugged corrosion resistant PTFE diaphragm pumps for low maintenance and long life. Optimize each solvent evaporation using handy vacuum adjustment
Also included with all models: • Digital or analog vacuum read-out • Inlet and outlet traps to protect the pump and exhaust   line from liquids • Prominent emergency "bump stop" switch for   bumping/foaming control • Automatic self-cleaning purge at shutdown


The self-cleaning feature and vacuum control technology  contribute to Self Cleaning Systems’ long diaphragm life. All  models are 35 l/min at 60Hz (29 l/min. at 50Hz).

Product tags