| 摘要 |
<p>The hydraulic valve (1), inserted into piping with vertical axes (7) above and below it, has a body (2) with two pairs of passages (3,4) matching the alignment of the pipe channels (7). The moving seal (20) has a lateral opening through it, matching the dia. of the upper pipe section, with the lower side towards the lower pipe section (7) giving an opening of an enlarged size with a contour to give a passage through the connecting zone between the pipes, opening into the lower pipe (7). It is positioned to match the inner contours of the passages (3,4) when the lateral opening is aligned with the passages for the upper pipe section. The edges form a stop section for one of the active scrapers (32) of the upper pipe section when the seal (20) is retracted, while the valve is in the open position. Also claimed is an installation for the distribution of a number of liquids using arrays of vertical and horizontal pipes, parallel to each other on planes against each other. A valve (1) is at their intersections, to link the two arrays together in a given configuration. The pipes in the two arrays are at right angles to each other between arrays.</p> |
