Hand wheel,lever and spanner driving and safety valve,pressure reducing valve,traps overleap this symbol.

1、手、手柄和扳手传动以及安全、减压、疏水省略本。

A floorstand for handwheel actuated valves allows operation from above.Included is handwheel, non-rising stem, fittings, extension, and floorstand with gate position indicator.

于手执行上的地轴承架可以在上方对进行操作，包括手，暗杆，连接件，加长件，以及带闸板位置指示的地轴承架。