Concrete transporting device comprises a pump (1), several delivery pipes (4, 5), and a distribution device (3) for connecting a supply pipe (2) attached to the pump to at least one selected delivery pipe. The distribution device contains a switching device for automatically switching the connection between the supply pipe and the delivery pipes. Preferred Features: The switching device consists of a fixed support disk (8) provided with openings and connections for the delivery pipes, and a distribution disk (11) moved by a motor relative to the support disk and having at least one opening which is brought into alignment with the openings of the support disk for the connection to the pump.
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