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

1、手、手柄和手动以及安全阀、减压阀、疏水阀省略本代号。

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

用于手执器阀门上的地轴承架可以在上方对阀门进，包括手，暗杆，连接件，加长件，以及带闸板位置指示器的地轴承架。