Supply gate valve stem 供应闸阀阀杆
rising stem gate valve 明杆式闸阀
non-rising stem wedge gate valve 暗杆楔式闸阀
non-rising-stem gate valve 暗杆闸阀
rising stem type gate valve 明杆闸阀
rising stem wedge gate valve 暗杆楔式闸阀
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。
Gate valve are normally installed in horizontal pipe runs with the stem vertical.
闸阀通常安装在水平管道上，阀杆垂直向上。
CCD electric ultra-high vacuum gate valve USES electric device to drive the stem, moving valve disc up down to make the valve opened closed.
CC D型电动超高真空插板阀是通过电动装置驱动阀杆带动阀板作上下运动，达到阀门的开启或关闭。
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