Disclosed is a septum holder that comprises a body having an upper body part and a lower body part that has a bored out interior. An insert comprising at least one bore that forms the seat of a needle valve fits loosely into the bored out interior of the lower body part. A septum comprising an upper part is attached to an exterior surface of the lower body part of the septum holder. A lower part of the septum extends downward beyond the lower edge of the lower body part of the septum holder. The septum holder is characterized in that the insert can freely move up and down in the interior of the lower body part and the septum can freely move up and down on the exterior surface of the lower body part. Also disclosed is a connector section for a liquid transfer apparatus that comprises the septum holder.