水閥開關方向按照順時針方向來關閉。

The opening and closing direction of the water valve should be clockwise.

　　1、通常向右方向是開啟，向左邊是關閉，閥門順時針關閉，逆時針打開。即閥門沿箭頭指向S的方向關閉，閥門沿O的方向打開。其中S代表關，O代表開。如果有手輪，按右手拇指的方向轉動將其打開，反過來是關閉。

1. Usually, the valve opens to the right and closes to the left. The valve closes clockwise and opens counterclockwise. The valve closes in the direction pointed by the arrow towards S, and opens in the direction of O. S represents off, and O represents on. If there is a handwheel, turn it in the direction of your right thumb to open it, and vice versa to close it.

　　2、水閥有球閥和閘閥，球閥的扳手在垂直于水管時關閉，當90度扳手擰緊或反轉時，扳手在管道向前時打開，順時針轉動閘閥的手輪，打開逆時針螺絲，在使用過程中，閘閥不應過緊，以防止螺紋預制滑閥脫落。

2. Water valves have ball valves and gate valves. The wrench of the ball valve closes when it is perpendicular to the water pipe. When the 90 degree wrench is tightened or reversed, the wrench opens when the pipe is forward. Turn the handwheel of the gate valve clockwise and open the counterclockwise screw. During use, the gate valve should not be too tight to prevent the threaded prefabricated slide valve from falling off.

　　3、閥門是一種用于開關的管路附件，如果按照功能來劃分，有的是止回閥或者調節閥，有一種斷閥能夠起到開啟和關閉的作用，一般在一些冷熱源，包括管路支上面被用到，止回閥能夠防止介質倒流，不允許流體反向流動。

3. A valve is a type of pipeline accessory used for switches. If divided by function, some are check valves or regulating valves, and there is a type of shut-off valve that can open and close. It is generally used in some cold and heat sources, including pipeline supports. Check valves can prevent medium backflow and do not allow fluid to flow in the opposite direction.

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