| 摘要 |
AN OUTLET VALVE IS ARRANGED IN THE BOTTOM OF A VESSEL INTENDED TO BE FILLED WITH LIQUID COMPRISING A VALVE DISC (1) CONNECTED TO A PISTON ROD (4) AND A PISTON (5) ACTUATED BY A PRESSURE MEDIUM. THE VALVE DISC (1) IS MOVABLE BETWEEN A FIRST AND A SECOND POSITION AND IS ARRANGED TO BEAR AGAINST A VALVE SEAT (2) IN ITS FIRST CLOSED POSITION. THE PISTON (5) IS ARRANGED IN AN OPERATING DEVICE (6) PROVIDED WITH A CONNECTION (7) TO A SOURCE FOR PRESSURE MEDIUM. THE OPERATING DEVICE (6) IS DESIGNED AS A UNIT SEALED FROM THE LIQUID AND IS ARRANGED AT SUCH A DISTANCE FROM THE VALVE SEAT (2) THAT THE LIQUID, WHEN THE VALVE IS OPEN, PASSES A ZONE BETWEEN THE OPERATING DEVICE (6) AND THE VALVE SEAT (2).
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