暖氣閥門 ：

　　Heating valve:

　　橫著是關閉，豎著是打開。

　　Horizontal is closed, vertical is open.

　　標記上，open對應開，shut對應關。

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

　　球形閥門：手柄和管道連成直線表示打開，不是直線表示關閉。

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

　　有手輪的閥門：右轉閥門是開，左轉則閥門是關。

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

　　一字閥門 ：

　　One character valve:

　　與管道平行是開啟狀態，垂直是關閉狀態。

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

　　十字閥門 ：

　　Cross valve:

　　可以查看上面的方向標識，順著方向稍微旋轉下，緊的是關閉狀態，松的是開啟狀態。

　　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.

　　暗桿式閘閥 ：

　　Concealed stem gate valve:

　　閥桿、螺桿在較高位置表示開啟狀態，在底部位置表示關閉狀態。

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

　　球閥 ：

　　ball valve

　　水管球閥逆時針是開，順時針是關。

　　The water pipe ball valve opens counterclockwise and closes clockwise.

　　手輪與閥門在同一個方向表示全部打開。

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

　　右手拇指撥動輪上箭頭方向與閥門打開方向一致則閥門打開。

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

　　對夾蝶閥 ：

　　Butterfly valve:

　　手柄或操作桿與管道平行表示開，垂直表示關。

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

　　閥門主體通道內暢通無阻表示開，有阻力表示關。

　　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.

　　可以使用手持式檢測器檢測開閉狀態。

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

　　明桿閘閥 ：

　　Bright stem gate valve:

　　明桿處于上升位置表示開啟狀態，下降位置表示關閉狀態。

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

　　閥體上有開和關的文字或箭頭標志。

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

　　順時針旋轉或推拉手柄表示開啟，逆時針旋轉或推拉手柄表示關閉。

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

　　指示器位置或標志表示開關狀態。

　　The indicator position or symbol indicates the switch status.

　　蝶閥 ：

　　Butterfly valve:

　　閥門手柄或操作桿與管道平行表示開，垂直表示關。

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

　　閥門開啟時主體通道暢通無阻，關閉時有阻力。

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

　　球閥 ：

　　ball valve

　　手柄打開時應指向流動方向。

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

　　需要轉動手輪才能知道開關狀態。

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

　　其他判斷方法 ：

　　Other judgment methods:

　　觀察閥門上的標志和標識，如箭頭、開關標志等。

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

　　通過手動轉動閥門，順時針旋轉表示關閉，逆時針旋轉表示開啟。

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

　　根據操作經驗，閥門關閉時重新打開是逆時針，開啟時重新關閉是順時針。

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

　　觀察閥門所控制的管道中流體的流向，流體順暢通過表示閥門開，不順暢表示閥門可能未完全開或關。

　　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.

　　觀察閥門門板的形狀和標志，門板上會有箭頭、標識或文字表示開關方向。

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

　　螺紋方向，順時針旋轉連接表示關閉閥門，逆時針旋轉連接表示打開閥門。

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

　　閥桿位置，閥桿向上移動表示打開閥門，向下移動表示關閉閥門。

　　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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