VDD system

Partial flow dilution system for droplet aerosols with infinitely variable dilution factor.

Especially for diluting liquid aerosols, the VDD dilution system offers special advantages, e.g. with the variable dilution factor and minimization of losses with large droplets.

With the VDD series, the input dilution air is controlled using a mass flow controller. The dilution factor of the VDD series is infinitely variable from 1 - 10.

In combination with a downstream measuring device, e.g. welas® digital or Promo®, the particle size distribution and concentration is measured with the highest accuracy.

A device combination of this kind is successfully used e.g. for measuring the droplet size of coolant lubricant.


VDD 10