A liquid distributor valve includes a compartmented base body with a cover and several outlets and one inlet. A rotatable obturator bell is inwardly arranged and has a shaft projecting through the cover and governed by an externally arranged electronic control having an independent assembly adapted to fit onto the base body. The actuation on the shaft of the obturator bell from the gearmotor of the externally arranged electronic control is carried out through a pinion driven by the shaft of the gearmotor and enmeshed with a gear wheel linked to the shaft of the obturator bell. The linking between the gear wheel and the shaft of the obturator bell is accomplished by a tubular body having an external thread matching the thread provided in the inside of the neck forming an extension of the gear wheel.