STF designs and supplies deaerators of the spray and tray type.
The typical STF deaerator consists of two vessels, placed one on top of the other.
The top vessel consists of the deaerating tower, vertical in small units and horizontal in large units, on top of it there is the spraying of the water to be deaerated.
Then the condensate falls by gravity through a series of trays where it is broken up in many weirs.
The mechanical separation of the water falling from one tray to the other in conjunction with the thermal and dynamic action of the steam, rising to the top of the vessel, assures the removal of the gases dissolved in the water.
Finally the water is discharged in the storage tank, which capacity is studied as function of the plant needs.