Improved rotatable regulating valve of liquid flow, characterized in that it consists of an ideally parallelepipedic housing that internally houses on the base an axis supported by its other end against the upper base, which shaft receives, with free rotation capability, a set of wheels of which the bottom positioned is a paddle wheel with other coaxial, toothed and about a third of the diameter of the first, coming successively coupled two other wheels or a number different from the diameter of the pallets, respectively linked to other so many of diameter approximately of a third of the same and one last cogged solidaria of a short cylindrical neck that extends in another in trunk of little pyramid, that crosses the upper base of the housing by a step to this determined effect, in which will be coupled, the right piece for opening or closing direct or dist eltotal or modulated of the passage of the liquid, and because on a second axis internally fixed to the upper base, it engages another set of cogwheels identical to the previous ones in which they mesh successively with a speed reduction result. (Machine-translation by Google Translate, not legally binding)
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