Loading... Please wait...


Nold DeAerator™ | Model 2100

  • Model 2100 Nold DeAerator shown degassing a liquid.
  • Typical system components include (from left to right) the Model 2100, a storage tank, a moisture trap and vacuum pump.
Model 2100

De-aired water or antifreeze solutions are an essential ingredient of any hydraulic piezometer or settlement system, where the formation of air bubbles in the fluid-filled tubing must be prevented. The Nold DeAerator provides a rapid means of removing dissolved gases from fluids, at a much higher rate than through conventional heating/boiling methods. The Nold DeAerator consists of a holding tank, which can be evacuated using either a vacuum pump or a water-powered aspirator. Water (or antifreeze solution), is drawn into the tank where it is agitated violently by a rotating impeller, causing cavitation, nucleation and the rapid expulsion of the dissolved gasses. The Nold DeAerator can also be used with other fluids to remove dissolved gasses.


Standard Capacity
8 liter
Power Supply
115V | 60 Hz
230V | 50/60 Hz
Power Consumption
115V | 59 watts
230V | 64/59 watts
Vacuum Requirements
750 mm Hg, (12 Torr), or better
Degassing Purity
0.6 ppm
L × W × H
190 × 190 × 600 mm

Please Note: GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.