暖气阀门 ：

　　Heating valve:

　　横着是关闭，竖着是打开。

　　Horizontal is closed, vertical is open.

　　标记上，open对应开，shut对应关。

　　On the label, 'open' corresponds to 'on', and 'shut' corresponds to 'off'.

　　球形阀门：手柄和管道连成直线表示打开，不是直线表示关闭。

　　Spherical valve: If the handle and pipeline are connected in a straight line, it indicates opening; if not, it indicates closing.

　　有手轮的阀门：右转阀门是开，左转则阀门是关。

　　Valves with handwheels: turning right opens the valve, turning left closes the valve.

　　一字阀门 ：

　　One character valve:

　　与管道平行是开启状态，垂直是关闭状态。

　　Parallel to the pipeline is the open state, and perpendicular is the closed state.

　　十字阀门 ：

　　Cross valve:

　　可以查看上面的方向标识，顺着方向稍微旋转下，紧的是关闭状态，松的是开启状态。

　　You can check the direction indicator above, rotate it slightly in the direction, the tight one is in the closed state, and the loose one is in the open state.

　　暗杆式闸阀 ：

　　Concealed stem gate valve:

　　阀杆、螺杆在较高位置表示开启状态，在底部位置表示关闭状态。

　　The valve stem and screw indicate the open state at a higher position and the closed state at the bottom position.

　　球阀 ：

　　ball valve

　　水管球阀逆时针是开，顺时针是关。

　　The water pipe ball valve opens counterclockwise and closes clockwise.

　　手轮与阀门在同一个方向表示全部打开。

　　The handwheel and valve in the same direction indicate full opening.

　　右手拇指拨动轮上箭头方向与阀门打开方向一致则阀门打开。

　　If the right thumb moves the arrow on the wheel in the same direction as the valve opening direction, the valve will open.

　　对夹蝶阀 ：

　　Butterfly valve:

　　手柄或操作杆与管道平行表示开，垂直表示关。

　　Parallel to the pipeline indicates open, while perpendicular indicates closed.

　　阀门主体通道内畅通无阻表示开，有阻力表示关。

　　If there is no obstruction in the main channel of the valve, it means it is open; if there is resistance, it means it is closed.

　　可以使用手持式检测器检测开闭状态。

　　Handheld detectors can be used to detect the opening and closing status.

　　明杆闸阀 ：

　　Bright stem gate valve:

　　明杆处于上升位置表示开启状态，下降位置表示关闭状态。

　　The rising position of the pole indicates an open state, while the falling position indicates a closed state.

　　阀体上有开和关的文字或箭头标志。

　　There are text or arrow marks indicating opening and closing on the valve body.

　　顺时针旋转或推拉手柄表示开启，逆时针旋转或推拉手柄表示关闭。

　　Clockwise rotation or pulling of the handle indicates opening, while counterclockwise rotation or pulling of the handle indicates closing.

　　指示器位置或标志表示开关状态。

　　The indicator position or symbol indicates the switch status.

　　蝶阀 ：

　　Butterfly valve:

　　阀门手柄或操作杆与管道平行表示开，垂直表示关。

　　The valve handle or operating rod parallel to the pipeline indicates open, and perpendicular indicates closed.

　　阀门开启时主体通道畅通无阻，关闭时有阻力。

　　When the valve is opened, the main passage is unobstructed, but there is resistance when it is closed.

　　球阀 ：

　　ball valve

　　手柄打开时应指向流动方向。

　　When the handle is opened, it should point in the direction of flow.

　　需要转动手轮才能知道开关状态。

　　You need to turn the handwheel to know the switch status.

　　其他判断方法 ：

　　Other judgment methods:

　　观察阀门上的标志和标识，如箭头、开关标志等。

　　Observe the signs and markings on the valve, such as arrows, switch signs, etc.

　　通过手动转动阀门，顺时针旋转表示关闭，逆时针旋转表示开启。

　　By manually rotating the valve, clockwise rotation indicates closure, and counterclockwise rotation indicates opening.

　　根据操作经验，阀门关闭时重新打开是逆时针，开启时重新关闭是顺时针。

　　According to operational experience, reopening the valve when closed is counterclockwise, and reopening when opened is clockwise.

　　观察阀门所控制的管道中流体的流向，流体顺畅通过表示阀门开，不顺畅表示阀门可能未完全开或关。

　　Observing the flow direction of fluid in the pipeline controlled by the valve, if the fluid passes smoothly, it indicates that the valve is open; if it is not smooth, it indicates that the valve may not be fully open or closed.

　　观察阀门门板的形状和标志，门板上会有箭头、标识或文字表示开关方向。

　　Observe the shape and markings of the valve door panel, which will have arrows, signs, or text indicating the direction of the switch.

　　螺纹方向，顺时针旋转连接表示关闭阀门，逆时针旋转连接表示打开阀门。

　　Thread direction, clockwise rotation connection indicates valve closure, counterclockwise rotation connection indicates valve opening.

　　阀杆位置，阀杆向上移动表示打开阀门，向下移动表示关闭阀门。

　　Valve stem position, upward movement of the valve stem indicates opening of the valve, and downward movement indicates closing of the valve.

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