A package system for dispensing a flowable material into a conduit of a dispensing apparatus. The package system includes a package and a connector. The package, e.g., a bag-in-box, comprises a hollow bag and a tap fitment for enabling the contents of the bag to flow out when the fitment is open. The connector includes an automatic shut off valve and is arranged to be fixedly secured to the conduit of the dispensing apparatus and releasably secured to the fitment. The valve is arranged to enable the flow of flowable material from the package into the conduit when the fitment is open, while preventing any of that material from flowing out of the conduit when the connector is disconnected from the fitment.