Piezoelectric valve has stop provided outside annular face formed by abutting first and second sealing structures and in closed position of flexible element limits deformation of second sealing structure in region of sealing face

摘要

The piezoelectric valve, in which in the closed position of a piezoelectric flexible element (8) a first sealing structure abuts against a second sealing structure, forming an annular sealing face, has at least one stop provided outside the annular face and adjacent to this, and projects in relation to the adjacent surface of the component which features the stop, and in the closed position of the flexible element limits the deformation of the second sealing structure in the region of the sealing face.