The specifications, models and types of pneumatic butterfly valves produced by the factory should meet the requirements of pipeline design. The valve model should be marked according to the requirements of international numbering standards. If it is an enterprise product standard, in addition to the model, the product model should also be described in detail on the product specification, The pressure when the valve works needs to be greater than or equal to the pressure when the pipeline works. On the basis of not affecting the pipeline price, the maximum working pressure that the valve can withstand needs to be greater than the pressure when the pipeline actually works.

Then we will introduce the installation and maintenance of pneumatic butterfly valve: when installing, the valve disc needs to stop at the closed position; The opening position shall be determined according to the rotation angle of the disc plate; If there is a butterfly valve with bypass valve, it is necessary to open the bypass valve before opening it; At the same time, pneumatic butterfly valves should also be installed according to the manufacturer's installation instructions. Some heavier butterfly valves should also be set firmly. For these maintenance and installation problems, if you are an old hand to install them, you can certainly avoid many problems. However, it is hard for novices to say, because they have no experience in installation and maintenance, it is entirely possible to have some wrong installation during the installation process.