| 摘要 |
<p>In a stop valve, such as a ball-cock valve, in which the angular movements of the turning member (10) for the ball cock (2) are limited, e.g. to 90 DEG C between the open position shown and the closed (not shown), the new feature is that the stop surface formed in the valve housing (1) is the end surface (1d) on an annular stop projection (1c) extending from a nipple (1b) screwed into the valve housing (1a) proper into the valve chamber (5), whereas the end surface (1d) cooperates with an eccentric stop surface (10d) on the turning member (10). Both the fixed stop surface (1d) and the moveable stop surface (10d) may easily be formed using simple machining operations, and the fixed stop surface (1d) will always be correctly positioned, when the nipple (1b) is fully screwed into the valve housing (1a), since this screwing-in is limited by cooperating parts (1e and 1f) on the valve housing (1a) and the nipple (1b), respectively. <IMAGE></p> |
