Butterfly valve is a type of common valve, and this type of valve can also be divided into vacuum butterfly valve and ordinary butterfly valve according to the working environment. What is the difference between these two butterfly valves?
What is a vacuum butterfly valve
Vacuum butterfly valve means that the inside of the valve is in a vacuum state, which is called negative pressure in the industry. The pressure in the valve cavity is lower than the atmospheric pressure, and it is usually used in the vacuum piping system as a device to dredge and cut off the flow of the medium.
The difference between the two is what
ordinary butterfly valves cannot be used in a vacuum environment. Since ordinary butterfly valves do not have the ability to withstand pressure, placing them in a vacuum environment will affect their performance. Ordinary butterfly valves are usually used in an environment greater than or equal to atmospheric pressure. There are certain differences in the performance that butterfly valves can achieve in different environments.
The two kinds of butterfly valves are suitable for different media. Ordinary butterfly valves are usually used for media water, cement, or valves in the applicable fields and the petroleum industry. The vacuum butterfly valve can usually be used in some steam or water vacuum pipelines. There is a certain difference in the environment and scope of the use of the two. The most common special butterfly valve for vacuum environment is in the negative pressure system, which can achieve vacuum isolation and sealing to avoid leakage.
In summary, do you know the difference between a vacuum butterfly valve and an ordinary butterfly valve? Different types of valves are suitable for different environments and different media. Selecting the valve according to the requirements of the working environment can ensure the performance of the valve and the safety and life of the valve.
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