| 摘要 |
The invention concerns a liquid filling spout, designed in particular to be mounted on high-rate hydro washers, characterised in that it comprises: an air return tube with a central passage (44) and a head integral with said tube, a tube for the liquid flow, externally coaxial, the air return tube and the flow tube being relatively mobile to each other so as to take up two positions, one closed position, the tube being then in sealed contact with the head and the other open wherein the liquid can flow between the tube and the head, as well as levelling means with a valve (17).
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