The device by the human operator launches, such as through the cone-shaped gear reducer drive, direct drive valve stem up and down movement of the valve gate.
本装置由人力操作手轮,通过锥形齿轮等减速传动,直接驱动阀门阀杆上下移动,启闭阀门。
2
Since the gear reducer is working with load, attention shall be paid to the temperature increase of axial cone bearing and sliding thrust bearing oil sump.