This valve housing fits models made May 1998 through the present (except DM Top & TIMAX models). It functions as the steam deflector and clips into place over the valve cap.
When you remove this part for cleaning, slip your fingernails (using two hands) just under the rim of the housing on opposite sides of the rim-circle, you can then pull it straight upward to remove.
Kuhn Rikon Duromati...