阀杆也应该在顶部配置方向指示器，用于当手柄拆卸下来时指示阀瓣的位置。

The shaft also shall have a directional indicator on top to indicate disc position when the handle is removed.

youdao

这两种地轴架都可配置指示器，因此只要看一眼就能够知道阀瓣（楔板）的位置。

These two floor stands also available with an indicATor so the position of the disc (wedge) can be read AT a glance.

youdao

注意：阀门装运时是处于关闭位置。塑料套筒上的指示器与阀杆上的垂直刻线对齐。

NOTE: the valve is shipped in the closed position. The indicator on the plastic sleeve is aligned with the vertical scribed line on the stem.

youdao