| 摘要 |
The invention is aimed at an improvement to the device according to Patent Application no. 90 15528 (STAUBLI). In order to allow the movable stopper to be dispensed with, the rear part (111) of the sliding body (11) is directly laid out like a control slide valve and for this purpose includes radial passages (111b) which communicate with the blind axial bore (111a) and which open out on the periphery between two seals (112). <IMAGE>
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