A valve assembly for a dispenser. The valve assembly includes a valve body that extends about a longitudinal axis and defines an outer surface and an inner passageway. A valve stem extends through the inner passageway and includes an outer stem surface, an inner stem surface opposite the outer stem surface, and a first orifice extending from the outer stem surface to the inner stem surface. The valve assembly includes a retaining member joined to the second portion of the valve stem, wherein the retaining member extends outward from the outer stem surface. The retaining member includes a first retaining member surface, a second retaining member surface, and a void.