Signal butterfly valve is suitable for the petroleum, chemical, food, medicine, paper making, such as water and electricity, shipping, water supply and drainage, metallurgy, energy system piping.
Available in a variety of corrosive, non corrosive gases, liquids semifluid and solid powder pipelines and containers used as adjustment and throttling device.Special is widely used in high-rise building fire control system and other need to display the state of the switch valve pipeline system.