This invention relates to a fitment assembly used for dispensing liquids from flexible bags. The connector engages a valved fitment for a container for holding and dispensing fluid. The fitment includes a spout connected to the container and a sliding internal valve body and an external valve body securely positioned within the spout. The connector has a fitment end mateable with the fitment so as to compress the top edge of the external valve body so as to form a seal between the external valve body and the dispensing connector. The external valve body through circumferentially placed apertures allows for substantially complete drainage of the flexible bag.