| 摘要 |
<p>The nozzle has a valve housing (1) comprising an outlet valve, and an operating device with an operating handle (4). An outlet valve seat (14) is arranged in the housing, and an outlet valve body is loaded by a valve spindle (6). The outlet valve body has two, axially movable closing units (10, 11), and an opening gap is formed between the units. One unit acts together with the valve seat, and a purging circuit is formed by a bearing housing (9). The circuit is driven by a lower pressure acting in an area of the gap when the outlet valve is closed and closed by another unit.</p> |
