Shanghai Dongfeng Pump&Valve Factory is committed to the production and installation of fire pipeline 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 electric butterfly valves for butterfly valves? The method for selecting appropriate electric butterfly valve: 1. The horizontal stiffness and vertical rigidity of the butterfly valve should be greater than or equal to 1, and the ratio between the diameter of the butterfly valve and the height of the butterfly valve after the rated negative pressure should be greater than 0.7
2. Proper electric butterfly valve shall be selected based on the principle of convenient installation
3. The surface treatment of shell and butterfly valve shall be conducted by baking paint treatment, galvanizing treatment, zinc aluminum treatment and other methods to avoid rusting of the isolator in a short time, thus affecting the service life of electric butterfly valve
4. The longitude between the operating frequency of the equipment and the natural frequency of the electric butterfly valve of the butterfly valve should be greater than 3. How can the isolation efficiency be guaranteed to be above 85% in this case