| 摘要 |
<p>The present invention relates to a unidirectional shutter which can be applied to control systems for the quantity of water loaded in a dishwasher machine, suitable for preventing the emergency block of the machine due to incidental openings and closures of the dishwasher when very hot water is inside. Said shutter is capable of closing up the pipe (2) connecting the tank (1) of a dishwasher to said level control system with possibility of opening only in the direction of the dishwasher loading flow. <IMAGE></p> |
