NOVELTY - The fluid delivery head (21) comprises a line (7a) for supplying fluid (31, 41) towards an active part of an electrochemical cell and comprising a cavity (34) for recirculating liquid in communication with a discharge duct via a solenoid valve, a tube allowing the discharge of gas such as hydrogen, nitrogen and water vapor of the delivery line, and an outlet opening (26b) for connecting the delivery line to an external circuit. The tube traverses through the cavity. The cavity is formed near the outlet opening, and at a level of base point of the delivery line.    USE - The head is useful for delivering fluids for an electrochemical cell e.g. a fuel cell (claimed), which is useful in the field of transport.    ADVANTAGE - The head is capable of easily and economically delivering fluids to the fuel cell with minimum number of elements and in a small space, controls the amount of water present in the fuel cell with minimal congestion, minimizes the length of the hydrogen supply circuit and consequently reduces the condensation, and preserves the presence of water in the hydrogen delivery line thus increasing the life time of the fuel cell.    DETAILED DESCRIPTION - The fluid delivery head (21) comprises a line (7a) for supplying fluid (31, 41) towards an active part of an electrochemical cell and comprising a cavity (34) for recirculating liquid in communication with a discharge duct via a solenoid valve, a tube allowing the discharge of gas such as hydrogen, nitrogen and water vapor of the delivery line, and an outlet opening (26b) for connecting the delivery line to an external circuit. The tube traverses through the cavity. The cavity is formed near the outlet opening, and at a level of base point of the delivery line. The solenoid valve is connected to a unit for controlling its opening with a first sensor at a level of the liquid present in the delivery line. The sensor is present in the cavity over the solenoid valve. The control unit comprises a pressure sensor situated in the delivery line. An end of the tube is situated over the first sensor. The cavity is provided in a pipe, which is opened in the delivery line through an opening connected in the delivery head. An INDEPENDENT CLAIM is included for a fuel cell.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a part of fluid delivery head (Drawing includes non-English language text).    Fluid delivery line (7a)    Delivery head (21)    Outlet opening (26b)    Fluids (31, 41)    Cavity. (34)