| 摘要 |
The valve has a valve disk (1) comprising a circular valve disk surface (2) having a peripheral surface rim (4) and a normal part, which is perpendicular to the valve disk surface, runs through a center of gravity and defines a longitudinal axis (L). A brim is arranged on the surface rim, and includes a projecting part (6) that projects beyond the valve disk surface in an axial direction with respect to the longitudinal axis (L) and an airfoil-shaped part (8). The airfoil-shaped part adjoins the part and comprises a radial section arranged with respect to the longitudinal axis. |
