| 摘要 |
In a squeezed tube valve which comprises a valve block with a longitudinal groove to guide a flexible tube and a transverse groove for an electromagnetically actuated clamping bolt to shut off the tube, the crossing between the longitudinal and the transverse groove is rounded off at its edges, and the clamping force exerted by the bolt rises from zero according to an asymptotic rise function over the duration of the shutting action.
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