Why are pneumatic butterfly valves used in the construction industry?
You may not know that metal pneumatic butterfly valves are almost used in all walks of life, even in construction and other industries, there are many places to be used. For example, many equipment or passages need to be hoisted, but the vibration caused by equipment and pipes affects the surrounding environment and people's daily work and rest.
Hanger pneumatic butterfly valve, commonly known as (vibration damping hanger), is a pneumatic butterfly valve designed and developed according to the requirements of engineering projects. This product has large damping ratio, low natural vibration frequency, easy installation, and significant noise reduction effect on solid vibration transmission. It is suitable for lifting and vibration damping of various equipment and channel pipelines.
The vibration damping hook used to be a necessary component for the sound insulation of the ceiling in today's buildings. Its unique damping rubber block can cut off the transmission of the sound bridge. Especially, the entertainment places have the center of the subwoofer, which is essential. Otherwise, no matter how many sound insulation materials can isolate the sound in the compartment, so it is the most important equipment in the sound insulation project, It can also be used as the pipe suspender in the equipment room such as the water pump room to suppress the low-frequency sound transmission, with a very significant effect.
If there is a need for pneumatic butterfly valves, you can pay more attention to our website and our metal pneumatic butterfly valves. Our website is www.shsxjzq.cn. If you have any questions, you can leave a message online and we will give you a timely reply.

Why some pneumatic butterfly valves fail
The stainless steel wire mesh sleeve in the pneumatic butterfly valve has the effect of maintaining the bellows and accepting the medium pressure (mainly axial force) in the bellows. The mesh sleeve is wrapped outside the bellows, and the two ends are welded with the bellows, end ring and pneumatic butterfly valve joints.
Why some pneumatic butterfly valves fail
(1) False welding constitutes pulling off of wire mesh sleeve
Due to the factors of welding quality, the bellows, ring and wire mesh sleeve in the trinity welding process constitute the faulty welding of some steel wires (over burning or final welding). After the hose is installed into the pipeline, due to the uneven stress on the steel wire, under the effect of the medium pressure, the steel wire at the faulty weld will pull off first, making all the steel wire mesh sleeves pull off, resulting in the failure of the bellows drum, and the risk of attack. In order to eliminate this situation, the welding quality should be improved. Before the hose leaves the factory, the water pressure and air tightness test should be stopped and the hose can leave the factory only after it is qualified.
(2) Improper device constitutes wire mesh pulling off the hose. During the installation process, the hose will be stretched and distorted due to improper device or high pressure. When the stress caused by stretching or distortion exceeds the ultimate strength of the hose wire mesh sleeve, the mesh sleeve at the welding part of the pneumatic butterfly valve trinity or the mesh sleeve at other parts will be pulled off, Then the outer drum of the bellows will be stretched and damaged, leading to the disclosure of the media. Therefore, the planning and selection should be accurate, and the device should be correct.