Normally, the valve closes clockwise and opens counterclockwise. This is a general rule for valve design that applies to most situations. However, there are some special circumstances. Some valves may have special markings or designs, so it is best to check the markings on the valve or consult relevant experts before operation.
For valves with a handle shape, if the valve direction is consistent with the handle direction, the valve will open; Otherwise, close; For flywheel valves, the direction of the right thumb is the direction in which the valve opens, and vice versa - the direction in which it closes.
In addition, valves can be marked with arrows and letters. Usually there are two letters next to the arrow, one above the other. S means' closed '. Turn the valve in the direction of the arrow, where "S" represents "open" (open). The location will be opened.
