Filler head allowing a reliable refilling without spitting

A filler head for a storage system comprising a body to be mounted inclined according to a predetermined angle regarding the gravity direction, called the filling direction, and including a main part closed by a cover part so as to form a cavity in which a separating device is received, the filler head being configured to receive, in a cylindrical wall of the separating device extending around the filling direction, a distribution nozzle of a fluid with an automatic stop sensor to prevent overfilling of the filler head, the filler head being configured to be connected to a filling line and a venting line of a fluid tank and the separating device being arranged to improve the partitioning of the flow coming from the venting line and the flow going to the filling line, the separating device further comprising at least one flange, protruding transversally from the outside surface of the cylindrical wall and mounted in the cavity upstream of the sensor of the nozzle when received in the cylindrical wall and considering the filling direction, so as to ensure the fluid outgoing from the nozzle present in the filler head has limited possibility to spit back from the filler head without affecting the sensor work,

• wherein the flange of the separating device is mounted between a back portion of the body and a front portion of the body, located in an opposite direction to the back portion when considering the filling direction to form a shield substantially above all the upper surface of the fluid present in the filler head and wherein the venting line is connected with the filler head in the back portion of the body and the lowest half cylindrical wall when considering the gravity direction has no through recess downstream of the flange when considering the filling direction on the external surface facing the front portion of the body so as to ensure a laminar flow of the fluid from the nozzle received in the cylindrical wall towards the filling line.