哪里有管道，哪里就離不開閥門。閥門安裝在管道上，控制管道中流體介質(zhì)的流動。是重要的控制元件。但閥門也是一個可穿戴部件。我們生活中一個常見的閥門損耗就是閥門密封不嚴，導(dǎo)致泄漏。閥門填料處的泄漏是閥門中容易發(fā)生泄漏故障的部位。接下來良工閥門小編來帶大家看看閥門密封不嚴，原因有哪些?
Where there is a pipe, there is no place without a valve. The valve is installed on the pipeline to control the flow of fluid medium in the pipeline. It is an important control element. But the valve is also a wearable part. A common valve loss in our life is that the valve is not tightly sealed, resulting in leakage. The leakage at the valve packing is the part of the valve that is prone to leakage failure. Next, Lianggong valve editor will show you why the valve is not tightly sealed?
1、密封輔助結(jié)構(gòu)
1. Sealing auxiliary structure
在溫度或密封力的變化下，密封副的結(jié)構(gòu)會發(fā)生變化。而這種變化會影響和改變密封副之間的作用力，從而降低閥門密封性能。因此，上閥閥門小編提醒在選擇密封件時，一定要選擇具有彈性變形的密封件。同時注意密封面的寬度。原因是密封副的接觸面不能完全匹配。當密封面的寬度增加時，密封所需的力也會增加。
Under the change of temperature or sealing force, the structure of the sealing pair will change. This change will affect and change the force between the sealing pairs, thereby reducing the sealing performance of the valve. Therefore, the upper valve editor reminds that when choosing seals, we must choose seals with elastic deformation. At the same time, pay attention to the width of the sealing surface. The reason is that the contact surface of the sealing pair cannot match completely. As the width of the sealing surface increases, the force required for sealing also increases.
2、密封面
2. Sealing surface
比壓密封面比壓影響閥門的密封性能和閥門的使用壽命。因此，上閥閥門小編告訴你密封面的比壓也是一個很重要的因素。在同等條件下，比壓過高會導(dǎo)致閥門損壞，而比壓過低會導(dǎo)致閥門泄漏。因此在設(shè)需要充分考慮比壓的適當性。
The specific pressure of the sealing surface affects the sealing performance and service life of the valve. Therefore, the specific pressure of the sealing surface is also a very important factor. Under the same conditions, the valve will be damaged if the specific pressure is too high, while the valve will leak if the specific pressure is too low. Therefore, the appropriateness of specific pressure should be fully considered in the design.
3、密封副
3. Sealing pair
密封副的質(zhì)量主要是指我們必須檢查材料的選擇、匹配和制造精度。良工閥門小編舉例：例如閥瓣與閥座密封面配合良好，可以提高密封性能。周向波紋多的特點是其迷宮密封性能好。
The quality of sealing pair mainly refers to the selection, matching and manufacturing accuracy of materials we must check. For example, the valve clack and the sealing surface of the valve seat are well matched, which can improve the sealing performance. The characteristic of more circumferential ripples is its good labyrinth sealing performance.
The above is a detailed introduction about Lianggong valve agent. I hope it can help you. If you have any questions, please contact us. We will provide services for you with a professional attitude http://m.258kmw.com
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