| 摘要 |
A heat-sensitive mechanical connection for a valve has a first connecting portion 10 for connection to actuating means (14, Fig. 11) and a second connecting portion 12 for connection to the spindle (16, Fig. 11) of a valve closure member (60, Fig. 11) of a shut-off valve S. The valve closure member is spring-biased towards a closed position. The first and second portions 10, 12 are releasably interengagable by means of projections 42, 44 and complementary recesses 40, 46 and are held in engagement by means of a heat-sensitive link 50 which extends between the first and second portions. Above a predetermined temperature, the heat-sensitive link 50 melts, allowing the first and second portions to disengage thereby allowing the valve closure member to shut by virtue of its spring biasing. |
