Valve for an aerosol device

A valve assembly for an aerosol device, the valve assembly, in use, being receivable in an opening provided in a container of the aerosol device to close said opening, the valve assembly comprising:

• means on an outside of the valve assembly or providing a seal with the container when positioned in the opening thereof;
• a flat portion which, in use, faces towards the interior of the container and provides a flat base for an interior of the aerosol device;
• channels immediately adjacent the flat portion which provide access to an interior of the valve assembly;
• wherein component parts of the valve assembly comprise a valve stem, a spring and a valve chamber, and are arranged in a valve body contained therein by a sealing piece to provide a self-contained valve assembly;
• and
• wherein the valve stem and the valve chamber define a space therebetween that contains one dose to be released when the valve assembly is actuated.