Pneumatic ventilation butterfly valve, characterized by a slit between the valve plate and valve seat, is suitable for use in the environment with poor air circulation.

The installation stress of pneumatic butterfly valve shall be well controlled
In the installation of pneumatic butterfly valve, if the material is deformed under the force, a reaction force of equal size but opposite direction will be generated inside to resist the external force. Such reaction force is called stress. I think that the stress should be controlled during installation.
In complex pipeline systems, various difficulties in installation work often occur due to the restrictions of space and location conditions: formed pipes cannot be installed; Local cold correction will inevitably occur when the pipe is bent, straightened and fitted. According to the pipe diameter and the specific situation on site, the cold correction amount ranges from several millimeters to tens of millimeters, and some reach hundreds of millimeters. Practice has proved that the greater the amount is, the higher the internal stress will be. These residual installation stresses in the pipeline system are undoubtedly great hidden dangers, which will cause the occurrence of problems such as pneumatic butterfly valve fracture and affect pipeline safety.
Controlling the installation stress is not only easy to carry out the installation work, but also beneficial to ensuring the safety of the pipeline and extending the service life. Therefore, we hope that you can make relevant installation planning before installing the pneumatic butterfly valve.