The Thormann® tray is designed to handle even the lowest liquid flows, e.g. 40 l/(m2h ) [0.016 gpm/ft2], at a pressure drop as low as 1 mbar per tray.
The arrangement of the caps combined with the special vapor slots ensures a controlled flow pattern of the liquid on the tray and consequently a favorable residence time and a high separation efficiency.
Liquid weeping is minimized (even under minimum vapor flow rates) and can be completely eliminated by seal welding on installation. The vapor risers are formed from the tray deck and prevent the liquid from leaking down by design, which helps to achieve higher separation efficiency.
Optional cooling or heating coils may be provided between the rows of caps for use in, for example, exothermic absorption or reactive distillation applications