Introduction：
The Gate valve is commonly used as cut-off valves, mainly used to connect or cut off the medium in the pipeline, not suitable for regulating the medium flow.
The structure of the gate valve:
The gate valve is a valve that uses a gate and a valve seat to control the opening and closing. The gate valve is mainly composed of a valve body, a valve seat, a gate, a valve stem, a valve cover, a stuffing box, a stuffing gland, a valve stem nut, a hand wheel, etc.
Gate valves are suitable for a wide range of pressure, temperature and diameter.
The main advantages:
1. Small flow resistance. The medium channel inside the valve body is straight, the medium flows in a straight line, and the flow resistance is small.
2. It is more labor-saving when opening and closing. Compared with the stop valve, because whether it is open or closed, the movement direction of the gate is perpendicular to the flow direction of the medium.
3. The sealing is better than the stop valve.
4. Water hammer phenomenon is not easy to occur. The reason is that the closing time is long.
5. The medium in the valve can flow in both directions and is easy to install. The two sides of the gate valve channel are symmetrical.
6. The structural length (the distance between the two connecting end faces of the shell) is small.
7. The shape is simple, the structural length is short, the manufacturing process is good, and the application range is wide.
8. The structure is compact, the valve has good rigidity, the channel is smooth, the flow resistance is small, the sealing surface is made of stainless steel and hard alloy, the service life is long, and PTFE packing is used. The seal is reliable. The operation is light and flexible.
Application in Water Systems：
Gate valves are available in a wide range of sizes, from small valves to large – diameter valves suitable for main water transmission pipelines. This makes them adaptable to various water system requirements.
Gate valves are designed to provide excellent sealing when closed. The gate fits tightly against the valve seat, preventing any leakage of water. In water systems, this is crucial to avoid wastage of water and to maintain the integrity of the system.
In a water treatment plant, where water is treated and stored in large volumes, the proper sealing of gate valves ensures that there is no contamination or loss of treated water.
