| 摘要 |
In known clack valves provided with an elastic sealing cup, the sealing effect diminishes in the course of time, since the sealing cup is deformed by the pressure of the liquid. The disclosed sealing cup (2) is provided with a continuous flange (3) which engages a groove (4) in the housing. The flange (3) has a smaller width than the groove (4). The material constituting the sealing cup (2) can thus deform into the resulting gap when the valve disk (6) pushes into said material. This sealing cup anchoring is suitable for all clack valves provided with an elastic sealing cup. |
