| 摘要 |
A VALVE BODY (12) DEFINES A VALVE STEM OPENING (14). A VALVE STEM (16) COMPRISES AN ENLARGED PORTION (20) GREATER THAN THE VALVE STEM OPENING (14) TO THEREBY SECURE THE VALVE STEM (16) WITHIN THE VALVE BODY (12) BY LIMITING RADIALLY OUTWARD MOVEMENT OF THE VALVE STEM (16) WITH RESPECT TO THE VALVE BODY (12). A ROTARY MEMBER (30) COMPRISE UPPER AND LOWER BOSSES (32, 34). UPPER AND LOWER SPLIT TRUNNIONS (26, 28), WITH SPLIT COMPONENTS (26A, 26B / 28A, 28B) THAT CAN BE INSERTED FROM OPPOSITE SIDES OF THE VALVE BODY, ARE USED TO ROTATIONALLY SUPPORT THE UPPER AND LOWER BOSSES (32, 34) TO PERMIT ROTATION OF THE ROTARY MEMBER (30) WHILE PREVENTING AXIAL MOVEMENT OF THE AXIAL FLOW PATH (42) OF THE VALVE (10). |
