Abstract: A non-refillable valve device includes a housing with an axially extending internal cavity, where the internal cavity includes a chamber extending to an end of the housing. The housing is securable to a container to facilitate fluid communication between the container and the housing chamber. A plug member is secured within the housing chamber to provide a fluid flow passage between the container and the housing chamber when the housing is secured to the container, and an elastic sealing member is also disposed within the chamber. The sealing member is displaceable from a first position to a second position within the chamber, where the sealing member in the first position permits fluid flowing into the valve device to flow through the fluid flow passage and into the container, and the sealing member in the second position substantially prevents fluid flow through the fluid flow passage and into the container.