| 摘要 |
A cleaning device for a liquid treatment plant comprises a tank and also a pressure line for the supply of the liquid to the tank. The pressure line has a nozzle which can be moved between a position in which it is connected to the filling aperture of the tank and a position not connected to the filling aperture, and also comprises means for periodic cleaning of the pressure line. In order to avoid mistakes in the connection, a return line for returning a cleaning fluid supplied through the pressure line is provided with a connecting piece which can be connected on the one hand to the nozzle of the pressure line removed from the filling aperture, in order to form a flow connection between pressure line and return line, and which can be connected on the other hand to the filling aperture, in order to shut it off.
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