Method for producing a valve, involves locally heating valve element briefly after fitting in valve housing until surface is plastic and bends in pivoting direction, affecting relative closure section/seat position

摘要

The method involves locally heating the valve element (13) for a short period after it has been assembled in an associated valve housing (2) until the surface becomes plastic so that it undergoes a permanent bending in its pivoting direction affecting the relative position between the closure section (25) and the associated valve seat (9).