Station for forming a container form a preform, comprising a main body including a preform seat adapted to receive said preform and an injection assembly, said injection assembly comprising: - an injection nozzle comprising an inlet and an outlet, said injection nozzle being movable between a retracted position and an injection position relative to said preform seat, the outlet being designed to be placed in fluidic communication with the preform when the injection nozzle is in the injection position, and - an injection device arranged to inject liquid from a liquid source to the inlet of the injection nozzle, said injection device comprising a housing, defining a main chamber having an actuation aperture, and a closing element movable relative to the housing and closing the actuation aperture in a fluid tight manner, - a valve system operable by control means in a closed state, wherein the fluidic communication between the outlet and the main chamber is interrupted such that the main chamber, the closing element and the valve system in closed state delimit a closed volume, wherein the injection nozzle and the housing of the injection device are rigidly fixed to each other such as to form a single unit movable between the retracted position and the injection position, characterized in that the station further comprising an actuator arranged to move the closing element with respect to the main body, the control means being able to put the station in a displacement configuration, wherein the valve system is in the closed state, the closed volume is filled with liquid and the actuator moves the closing element, causing the housing and the injection nozzle to move accordingly. - an injection nozzle comprising an inlet and an outlet, said injection nozzle being movable between a retracted position and an injection position relative to said preform seat, the outlet being designed to be placed in fluidic communication with the preform when the injection nozzle is in the injection position, and - an injection device arranged to inject liquid from a liquid source to the inlet of the injection nozzle, said injection device comprising a housing, defining a main chamber having an actuation aperture, and a closing element movable relative to the housing and closing the actuation aperture in a fluid tight manner, - a valve system operable by control means in a closed state, wherein the fluidic communication between the outlet and the main chamber is interrupted such that the main chamber, the closing element and the valve system in closed state delimit a closed volume, wherein the injection nozzle and the housing of the injection device are rigidly fixed to each other such as to form a single unit movable between the retracted position and the injection position, characterized in that the station further comprising an actuator arranged to move the closing element with respect to the main body, the control means being able to put the station in a displacement configuration, wherein the valve system is in the closed state, the closed volume is filled with liquid and the actuator moves the closing element, causing the housing and the injection nozzle to move accordingly.