Gerhardt Programmable Distillation Systems


For more than 20 years Gerhardt has been offering the rapid distillation systems VAPODEST for the steam distillation of Kjeldahl digestion and other samples. The new VAPODEST models offer a state-of-the-art technology. All models have a modern MCU-control, automatic steam generation, RS 485 interface, a corrosion free plastic housing and many more features.

All distillation systems are especially good in handling distillations of Kjeldahl digestion solutions as well as physical seperation methods of water steam soluble materials and volatile acids. For the determination of alcohol it is ideal that the steam power of the steam generator can be reduced to around 70 %. Best results in combination with digestion systems KB, CSB und SMA.

The models offer varying degrees of automation with manual end point titration

Versatile applications

VAPODESt watersteam - rapid distillation systems are used worldwide e.g. for the determination of nitrate, nitrite, ammonium, Kjeldahl-digestion solutions, volatile acids, sulphur dioxide, ethanol, formaldehyde, phenols as well as other compounds. The fields of application can be found in various matrices, e.g. in:

  • food
  • feed
  • luxury food (beer, vine, liqueur, spirits)
  • cosmetics
  • detergents
  • environmental samples (plants, water, soils, sewage sludge)
  • rotten material from biogas plants e.t.c.


VAPODEST model for low sample throughput with simple program procedure:
Automatic NaOH addition, Steam power variable from 40 - 100%.The 5x7 segment LED shows the individual program steps and can display as well up to 9 different error messages.


The intermediate model is specifically set up with all the following parameters for Kjeldahl distillations, namely:
Automatic addition of NaOH, H2O as well as removal of the sample residues, variable steam power from 40 - 100%. The 5x7 segment LED shows the program steps and can display up to 9 different error messages.

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