A Gate valve (stop valve) is an opening and closing valve by lifting and lowering a gate. Gate valves require less space along the pipe axis and hardly affect the flow of media in the pipe.
Structure of gate valve: crank, valve body, gate valve, gasket, connecting shaft, valve cover
How the gate valve works:
Gate valve closes when performing manual rotation clockwise to lower the gate. The valve opens when turning counterclockwise to lift the gate.
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Application of gate valve:
Gate valves are cheaper than other collapsible valves so it is widely used and popular, in addition because it does not affect the flow of the medium in the pipeline so it is commonly used in water sector.
Gate valve classification:
In Vietnam, depending on each person, people can call gate valves according to different types such as copper gate valve, stainless steel gate valve, flanged gate valve, cast iron gate valve, cast iron valve, submersible valve company, steel gate valve … But actually divided valve is only divided into 2 main categories:
1- Gate valve – valve of submerged valve: is the valve with submerged valve of the crank, when making and opening the valve, the valve will not protrude. As such, it is difficult to know whether the valve is closed or opened.
2- Gate valve – Floating gate valve: is a valve with a float higher than the crank, when closing or opening the valve will be higher or lower than the crank, so it is easy to know whether the valve is closed or open.