2. Determine parameters. During installation, the parameters on the valve shall be carefully compared to ensure that the valve meets its own requirements. 3. Before installation, the dirt shall be effectively removed, and the dirt in the pipeline shall also be effectively removed to ensure good tightness after installation. 　　　　

5. When installing the electric switch butterfly valve, try to avoid external interference, and try to work in a non interference environment, because interference will affect the performance of the electric switch butterfly valve, resulting in low efficiency and frequent damage after installation.