| 摘要 |
<p>The unit comprises on a central block contg. bored passages, on an upper surface, a pair of lateral connections for the corresp. valves and a connection for a manometer (pi) measuring the downstream pressure. On the lower surface there are a central connection for an exit pipe, a lateral connection for a safety valve and an opposite lateral connection for a manometer controlling the inversion control pressure. At the front there are two lateral connections for manometers measuring the upstream pressure and a central exit-pressure regulator. On each side of the block there is an inversion pressure regulator, one of which is preset, and the other has a control device, which travels along a control range, limited by abutments. The distribution unit is used for exchanging gas supplies e.g. from bottles supplying oxyacetylene torches.</p> |
