Electric butterfly valve has a simple structure, small size, light weight, material consumption province, installation of small size, fast switching, 90 ° back and forth rotation, driving torque and other characteristics, for cut, turn, adjust the pipe in the media, has a good flow control characteristics and sealing off. , Electric butterfly valve can carry mud, fluid accumulation in the pipeline for at least the mouth. Low pressure, can achieve a good seal. Adjusted performance.