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Discussion on Globe Valve
Release time:
Jun 03,2024
Globe valve is a valve widely used in industrial and civil fields, mainly used to cut off or regulate the flow of media in the pipeline. Valve structure is simple, easy to operate, good sealing performance, is a very important control element. In this paper, the structure, working principle, advantages and disadvantages and application scenarios of the globe valve are introduced in detail.
The structure of the cut-off valve is mainly composed of valve body, valve clack, valve stem and valve cover. Among them, the valve body is the main part of the valve, usually made of cast iron, cast steel or stainless steel and other materials. Valve is a key component of the valve, it is through the sealing surface contact with the valve seat to achieve cut off or adjust the function of the medium flow. The valve stem is the operating part of the cut-off valve, which drives the disc to move up and down by rotating. The valve cover is used to protect the stem and disc, but also play a sealing role.
The working principle of the stop valve is very simple. When the valve stem rotates, the disc will move up and down, thus changing the distance between the disc and the valve seat to achieve the function of cutting off or adjusting the flow of the medium. When the valve flap and the valve seat is completely sealed, the cut-off valve can cut off the medium flow in the pipeline; when there is a certain gap between the valve flap and the valve seat, the cut-off valve can adjust the medium flow in the pipeline.
The advantages of the valve mainly include the following aspects:
1. The sealing performance of the stop valve is good, which can effectively prevent the leakage of the medium.
2. The operation of the stop valve is simple, and the function of cutting off or adjusting the medium flow can be realized by rotating the valve stem.
3. The structure of the stop valve is simple and the maintenance is convenient, which can reduce the maintenance cost.
4. Globe valve has a wide range of application, can be used for cutting and adjustment of various media.
The shortcomings of the valve mainly include the following aspects:
5. The flow resistance of the cut-off valve is large, which will cause a certain resistance to the flow of the medium.
6. The adjustment performance of the stop valve is poor, and it is not suitable for occasions that require precise adjustment of the medium flow.
7. The sealing surface of the stop valve is easy to wear, and the seals need to be replaced regularly.
The application scenario of the valve is very extensive, mainly including the following aspects:
8. The stop valve can be used in industrial pipelines to cut off or adjust the flow of various media, such as steam, water, oil, gas, etc.
9. Globe valve can be used in civil pipelines to cut off or adjust the flow of water, heating, gas and other media.
Valve can be used in chemical, petroleum, pharmaceutical and other industries, used to cut off or regulate the flow of various corrosive media.
11. Valve can be used in food, beverage and other industries, used to cut off or adjust the flow of various liquid media.
In short, the globe valve is a very important control element. It has the advantages of simple structure, convenient operation, and good sealing performance. It is suitable for the interception and adjustment of various media. In practical applications, it is necessary to select a suitable shut-off valve according to specific needs, and perform regular maintenance and maintenance to ensure the normal operation of the shut-off valve.
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