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The saturation unit, made of AISI 304 stainless steel, carries out all the operations of deaeration of the water and the subsequent carbonation to obtain carbonated water.
The saturation unit carries out all the operations of deaeration of the water and the subsequent carbonation to obtain carbonated water; it consists of a solid AISI 304 stainless steel structure, glass beads sandblasted and treated with protective paint, on which the various components, such as the deaeration tank, the carbonation device and the stabilization/storage tank are anchored.
Both tanks are made of AISI 304 stainless steel, polished inside and equipped with the necessary equipments for the proper execution of the working cycles and their washing.
The deaeration tank is kept at negative pressure by a liquid ring vacuum pump.
The water, introduced into the tank from above, is atomized by a divosfera, increasing the surface area of contact between the water and the vacuum. In this way the gases, naturally contained in the water, are expelled by the water itself, facilitating the subsequent stage of carbonation.
Moreover, in this tank the excess carbon dioxide is conveyed from the tank saturation: the CO2, in addition to facilitating the deaeration, causes a slight pre-carbonation.
The carbonation device provides the direct injection of CO2 in the liquid for obtaining carbonated water. The amount of CO2 is set by a modulating valve, which can provide different degrees of carbonation.
The next static mixer splits the bubbles of CO2 and facilitates the absorption.
Finally, the carbonated water is fed to the stabilization/storage tank, obviously kept under pressure with CO2 and from this tank sent to the filler.
The electrical stainless steel panel is provided with an operating panel that allows to verify and set all the control parameters of the machine and - on request - an electronic chart recorder that stores the values of pressure and temperature during the process.