Water distributing unit for an espresso coffee machine

Espresso coffee machine it is having at least a body of water emission (20), at least one body receiving water (30), at least one channel transmitter water (21) and at least two pipes receiving water (31 ), each having an inlet end and an outlet end, and a water distributor (1) receiving the outlet end (22) of the station pipe (21) and the inlet (32) of the pipes receiving (31) and adapted to selectively allow passage of water issuing pipe (21) to a receiving conduit (31), said dispenser (1) a first set (11) of two wafers (2, 4) superposed comprising being rotating the first plate (2), driven by an electric motor, so that it can assume various angular positions relative to the ends of the pipes (22, 32), the second (2) fixed with respect to the ends (22, 32) of the pipes (21, 31), each of said platelets (2, 4) at least one perforation (3) formed to selectively connect, according to the angular position of the first plate (2), the outlet end (22) of a station pipe (21) with the inlet end (32) of a receiving pipe (31), characterized in that the distributor (1) comprises a second set (12) of two wafers (2, 4 ) overlapping, with the first rotating plate (2), driven in rotation by a movement fitted with the movement of the first plate (2) of the first set (11).