SAITA - Model EVFT Series -Single and Multi-Effect Vacuum Evaporators

The EVFT Series single- and multi-effect vacuum evaporators use, as heating liquid, hot water or steam that supplies a heat exchanger that can vary according to the solution that has to evaporate (shell and tube, with U tubes or plates). The condensation of the steam generated in the boiling chamber is guaranteed by cold water (evaporation tower) or refrigerated. In multi-effect evaporators, the solution is heated in the first effect, steam condenses in the second where the water to be treated evaporates and so on. A degree of vacuum corresponding to the vapour pressure required for boiling at a lower temperature is applied in each effect following the first. This principle allows reducing the consumption connected with the evaporation process considerably. SAITA produces single-, double- or triple-effect modular evaporators. Double-effect evaporators (2EV) allow saving 50% of the energy demand (calories supplied by hot water or steam), while triple-effect ones (3EV) reach even 66%.