| 摘要 |
The valve's (1) control spindle (7) is indifferently actuated in a direct way by means of a handle (8) or else through a fitted actuator. This valve is characterized in that the neck of the valve body through which the control spindle projects has its opening (13) provided with oblong holes (15) for the passage of screws provided to fasten the actuator. Said oblong holes (15) have their sides (16,17) converging towards the centre of said neck. |
