Dispensing enclosure system for a container includes a body having an exterior surface and an interior surface, where the interior surface is configured to be coupled to the container. The system includes a valve on the exterior surface of the body, where the valve is capable of allowing fluid to exit from the container. The system also includes a seal disposed within the interior surface of the body, the seal having an inner circumference and an outer circumference such that in a relaxed configuration each of the inner circumference and the outer circumference is located on a separate plane, and in an engaged configuration a first portion of the inner circumference and the outer circumference are located substantially on the same plane, and a second portion of the inner circumference forms a curvature, where the second portion is between the first portion and the outer circumference.