| 摘要 |
A flap valve for liquid containers and liquid conduits has a valve housing having a cylindrical through bore extending in a longitudinal direction of the valve housing. A circular flap is positioned in the through bore and arranged in the valve housing rotatably about an axis extending perpendicularly to the longitudinal direction. A grip is located external to the housing and connected to the circular flap, wherein the grip is configured to turn the circular flap for opening and closing the through bore depending on a position of the circular flap. The throughbore has a seat having a spherical geometry for receiving the circular flap in a closed position of the circular flap.
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