December 05, 2020

What is the role of the gate valve?

The gate valve is a gate of the opening and closing part. Its direction of movement is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed. It does not suit the door parameters. It is usually 5°, and the medium temperature is not high. 2°52'. I believe that many people do not understand what the gate valve is, let's take a look at the role of the gate valve and related knowledge.

What is the role of the gate valve

The usage rate of the gate valve is very wide, and it will be used in some cutting devices. The diameter of the device is DN≥50mm. Of course, sometimes the cutting device with a smaller diameter will also use a gate valve. The function of the gate valve is a valve that moves in the vertical direction along the center line of the closing member (the gate plate). The gate valve is mainly used for cutting in the pipeline.

Gate valve advantages and disadvantages

Gate valve advantages

1. The flow resistance of the gate valve is small. The internal media channel of the valve body is straight, and the media flows in a straight line, and the flow resistance is small.

2. The gate valve is easier to open and close. Compared with the cut-off valve, because it is opened or closed, the direction of movement of the gate is perpendicular to the direction of flow of the medium.

3, high altitude, long opening and closing time. The opening and closing stroke of the gate is large, and the drop is performed by the screw.

4, water hammer phenomenon is not easy to produce. The reason is the long closing time.

5, the media can flow to any direction on both sides, easy to install. Both sides of the gate valve are symmetrical.

6. The structure length (the distance between the two connecting end surfaces of the housing) is small.

7, simple body, short structure, good manufacturing process, a wide range of applications.

8. Compact structure, good valve rigidity, smooth channel, small number of flow resistance, stainless steel and hard alloy on sealing surface, long service life, PTFE packing, reliable sealing, light and flexible operation.

The disadvantages of the valve

Erosion and scratches are easily caused between the sealing surfaces, and maintenance is difficult. Large size, opening requires a certain space, long opening and closing time. The structure is more complicated.

The above is the role of the gate valve and the advantages and disadvantages of the gate valve. Although the gate valve is less exposed in our lives, there are still many people who would like to understand the role of the gate valve . The above introduction should make it more clear that the gate valve I hope to help everyone, if you want to know other related information, please continue to pay attention to this site, more exciting so stay tuned!

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