China Soft Seat Butterfly Valve: Extending Service Life

I. Analysis of the causes of wear of traditional butterfly valves

The traditional butterfly valve is mainly composed of valve body, butterfly plate, shaft and sealing ring. When the butterfly plate rotates, it will contact with the sealing ring to realize the function of opening or closing. However, after long-term use, this contact will cause the sealing ring to gradually wear, thereby affecting the sealing effect of the valve. Especially in the medium environment containing solid particles, the wear phenomenon is more serious.

II. Working principle and advantages of soft valve seat butterfly valve

The core of the soft valve seat butterfly valve lies in its special sealing design. Compared with the sealing ring made of hard materials, the soft valve seat butterfly valve uses rubber or synthetic materials with better elasticity as a seal. The benefits of doing so are:

1. Automatic compensation function: When the butterfly plate is closed, the soft sealing ring can automatically adjust its shape to fill the gap between the butterfly plate and the valve body, thereby providing better sealing performance.

2. Reduce wear: Because the soft sealing ring has a certain elasticity and toughness, it can effectively avoid damage caused by hard collision even when there are tiny particles in the medium.

3. Easy to replace: Once the soft seal ring is aged or damaged, it can be easily replaced, which greatly saves maintenance time and cost.

III. Practical application effect

After a chemical plant installed a batch of soft seat butterfly valves on its production line, after a period of operation observation, it was found that compared with the traditional butterfly valves used before, the new valves not only have more stable and reliable sealing performance, but also have a service life of at least 50% longer under the same working conditions. In addition, due to the reduction in the number of shutdowns caused by valve failures, the overall production efficiency of the factory has also been significantly improved.

In summary, the soft seat butterfly valve butterfly-valve has shown obvious advantages in reducing wear and extending service life with its unique design. For those applications that require frequent valve switching or harsh media conditions, choosing a soft seat butterfly valve is undoubtedly a wise move. I believe that with the advancement of technology, there will be more innovative solutions in the future to help industrial automation level reach a new level.