Male and female fittings are configured to mate to form a valved connector system. Some embodiments of the female fitting include movable poppet configured to sealingly engage a flared projection within the female fitting. Some embodiments of the male fitting include a male mating aperture, and a movable plug configured to sealingly engage the male mating aperture. When the female fitting is mated with a male fitting, the male fitting forces the poppet to disengage from the flared projection, and the flared projection forces the plug to recede into the male fitting, to open a fluid path through the valved connector system.