Device for making a liquid safe by ultraviolet radiation at the dispensing point and method for making a liquid safe

Device for making a liquid safe at the dispensing point comprising:

• a sterilizer comprising an ultraviolet lamp, an inlet port and an outlet port of said liquid,
• supply means of the liquid connected to the inlet port of the sterilizer,
• distribution means of the liquid, in direct pressure flow, comprising a first end connected to the outlet port of the sterilizer and a second end in the form of a neck,
• an actuator connected to a printed circuit card controlling lighting of the ultraviolet lamp and opening of a solenoid valve for distribution of the liquid or closing of said solenoid valve to stop distribution of the liquid,
• and a sensor measuring the ultraviolet radiation connected to the printed circuit card to control closing of the solenoid valve when a signal corresponding to a quantity of ultraviolet radiation lower than a predefined threshold is emitted by said sensor,
• wherein said printed circuit card comprises means for controlling opening of the solenoid valve when the sensor measures a larger quantity of ultraviolet radiation than the predefined threshold for a given flowrate, and in that the device is equipped with means for adjusting the flowrate adapted to the predefined threshold.