Shutter for a valve and corresponding valve for controlling an air flow and relative valve

摘要

There is described a shutter for a valve for controlling an air flow; shutter is selectively rotatable about an axis and adapted to be housed inside a body of valve, and comprises a surface disposed about axis; surface comprises at least one first curved portion shaped eccentrically relative to axis so as to define, in use and together with body, at least one first passage for the air flow.