This process is widely used in the Pharma and Chemical Industries; it involves the evaporation and recovery of solvent vapors under vacuum with the help of vacuum pump, and vacuum system.

Evaporation process mostly needs the vacuum in the range of 550 to 680mm Hg. the temperature is suitable for the use of vacuum pumps. This involves the removal of Water Vapors from the Solvents. Under vacuum this process is faster , reliable and quality efficient.

Some of the significant evaporations are

Single effect evaporation

Multiple effect evaporation

Calendarial evaporation for products.

Falling film and plate evaporators are used majorly consuming vacuum as their Vital Need.

Single stage and Two Stage Vacuum Pumps are suitable for such processes, special material of construction and coating can be offered for the hazardous chemicals processes.

Two Stage Liquid Vacuum pumps having high capacities at high vacuum are the first selection in these types of processes.

Various combinations of Liquid ring vacuum pumps are used for running in these processes with large volumes. This means it can be an entire dedicated vacuum system with the controlled liquid flow. Close loop liquid ring recirculation systems having working and standby vacuum pumps mounted are most suitable as they offer continuous run without hampering the vacuum.

An Evaporation Process involves large amount of vapor load which needs to be handled and to make the process Vacuum Efficient large capacity of vacuum pump to be selected which can hog down the evaporator during steaming process only.