Ambient Vacuum Deaeration


Vacuum Unit

    • Final oxygen below 10 ppb
    • Very low CO2 or N2 consumption
    • Efficient and hygienic design



The deaeration column is filled with high efficient structured packing. Its large internal surface ensures a maximal contact area between gas and liquid. Water is homogeneously distributed on the top and CO2 or N2 is injected at the bottom of the column.

While the water flows downwards through the packing, the CO2 or N2 rises in counter-current, removing the oxygen to concentrations as low as 10 ppb. The deaeration column operates under vacuum, decreasing gas solubility in water. Therefore stripping gas consumption is significantly lower compared to the unit working under atmospheric pressure. A drive controlled pump maintains the level in the column and forwards the deaerated water into a buffer tank or point of use.

The unit has an uncompromising sanitary design and is fully CIP cleanable.

Additional information

Final Oxygen

Less than 10 ppb (0,01 ppm)


Operating 2 to 4 barg, 30 to 60 psig


Operating 8 to 30 °C, 40 to 90 °F


2 to 4 barg, 30 to 60 psig; max. 90 °C, 200 °F

CO2 / N2 purity

99.995 %

Stripping gas flow

app. 0,2 g/l (final O2, water temperature and column height dependent)


app. 0,2 g/l (water temperature dependent)


Tri-clamp; other connections upon request


from Height 5,5 m, 16,4’; Width 1,0 m, 3,3’; Depth 0,5 m, 1,6’ Weight: from 200 kg, 440 lb


Stainless Steel 304, EPDM, PSU, PP


4 to 10 hl/h, 6 to 15 hl/h, 10 to 25 hl/h, 20 to 50 hl/h, 30 to 75 hl/h, 40 to 100 hl/h, 60 to 150 hl/h, 80 to 200 hl/h, 100 to 250 hl/h, 160 to 400 hl/h, 240 to 600 hl/h, 400 to 1000 hl/h