Industry News

Advantages of gate valves


There are many advantages of gate valves, let's pick a few to talk.

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. More labor-saving. Compared with the globe valve, because whether it is open or closed, the direction of movement of the gate is perpendicular to the flow direction of the medium.
3. Large height and long opening and closing time. The opening and closing stroke of the gate is large, and the lowering is carried out by the screw.
4. The phenomenon of water hammer is not easy to occur. The reason is the long closing time. Z41tw-10 type wedge gate valve
5. The medium can flow in any direction on both sides, which is easy to install. The gate valve channel is symmetrical on both sides.
6. The length of the structure (the distance between the two connecting end faces of the shell) is small.
7. The sealing surface is easy to wear and affect the service life. When opening and closing, the two sealing surfaces of the gate and the valve seat rub against each other and slide against each other, which is easy to cause abrasion and wear under the action of the medium pressure, which affects the sealing performance and shortens the service life.
8, Higher price. There are many contact sealing surfaces, and the processing is more complicated, especially the sealing surface on the gate seat is not easy to process, and there are many parts.
9. Simple shape, the structure length is short, the manufacturing process is good, and the scope of application is wide.
10. The structure is compact, the valve rigidity is good, 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 the PTFE packing is used. Reliable sealing. Easy and flexible operation.