Is Shenyang electric soft seal wafer butterfly valve normally open and closed? First, we can clean the valve directly, but before the problem occurs, we can clean the valve regularly to prevent impurities from blocking the valve;
、 The signal butterfly valve is applicable to the pipelines of petroleum, chemical, food, medicine, paper making, water and electricity, ships, water supply and drainage, smelting, energy and other systems. It can be used as regulating and throttling equipment on various corrosive and non corrosive gas, liquid, semi fluid and solid powder pipelines and containers. Especially, it is widely used in high-rise building fire protection system and other pipeline systems that need to display valve switch status.