Valve for dosing and mixing fluids and relative Brix degrees optical sensor

Valve for dosing and mixing fluids comprising:

• at least one first inlet duct for inletting at least one first fluid to be mixed;
• at least one second inlet duct for inletting at least one second fluid to be mixed;
• a double chamber for controlling the flows placed in fluid communication with the first inlet duct and with the second inlet duct;
• at least one actuator configured to regulate the flow rates of the first fluid to be mixed and of the second fluid to be mixed, which flow in the first inlet duct and in the second inlet duct respectively;
• at least one mixing duct for mixing the mixture of fluids, placed downstream of the double chamber for controlling the flows;
• an electronic control unit for controlling the valve;
• and
• a Brix degree optical sensor, placed on the mixing duct for mixing the mixture of fluids and operatively connected to the electronic control unit, said optical sensor being configured to send a measurement and control signal to said electronic control unit, which drives said actuator so as to proportionally control the fluid flow rates flowing in the first inlet duct and in the second inlet duct respectively, and, thus, to regulate the mixing ratio of the first fluid and of the second fluid,
• wherein the optical sensor is made in the shape of a casing provided with a third inlet duct for mixing the first fluid and the second fluid exiting from the valve, as well as with an outlet duct for mixing the first fluid and the second fluid exiting from the optical sensor, and wherein a measurement chamber is interposed between the third inlet duct of the optical sensor and the outlet duct of the optical sensor, said measurement chamber being provided with a plurality of optical components arranged to perform the optical reading of the Brix degrees directly on the flow of the mixture of fluids passing through said measurement chamber.