Shanghai Dongfeng Pump&Valve Factory is committed to the production and installation of fire pipe seismic support, water pipe lateral support, and fire support. With rich experience in the industry, what are the methods that users can trust to purchase appropriate pneumatic butterfly valves for ball valves? The method of selecting appropriate pneumatic butterfly valve for ball valve: 1. The horizontal stiffness and vertical rigidity of the ball valve should be greater than or equal to 1, and the ratio between the diameter of the ball valve and the height of the ball valve after the rated negative pressure should be greater than 0.7
2. Proper ball valve and pneumatic butterfly valve shall be selected based on the principle of convenient installation
3. The surface treatment of shell and ball valve shall be carried out by baking paint treatment, galvanizing treatment, zinc aluminum treatment and other methods to avoid corrosion of the isolator in a short time, thus affecting the service life of pneumatic butterfly valve
4. The longitude between the operating frequency of the equipment and the natural frequency of the ball valve pneumatic butterfly valve should be greater than 3. How can the isolation efficiency be guaranteed to be more than 85% in this case