| 摘要 |
<p>The conventionally separate valve, pressure regulator and manometer are integrated in a single unit. Gas, entering at (1a) is led to a conduit closed by plug (13). The spring loaded plug is moved as diaphragm (6) is deflected by bolt (4), whose threads engage with those in nut (2). A bolt (4) fits into a pinion (3) whose teeth engage in a quarter rack at the lower end of handle shaft (22). This shaft is turned by a radial hand lever, turning 90 from the ON to the OFF position. When opened, the valve admits gas to the regulator that uses a similar system of plug (13') and membrane (8). These are actuated through a regulating nut (14) moved by the upper cap (10). Gas at the delivery pressure passes through the bore of rod (19) to manometer (38) whose indicator (11a) can be viewed through the transparent dome (37). Gas is then supplied at (1b). Standard units for 1.5, 4 and 10 bar could then cover the conventional range of 15 types of units. The fitting has a cross-section of about 60 mm and a length of about 150 mm.</p> |
