1) Product specifiations:•Seal valve seat water line design, the valve palate seal surface graphic design,completely avoid the recruitment phenomenon for the valve long time no open;•The disc in holes in the up and down, adopt the ball type friction surface design,torque more small, sealing better;•Gentle slope type seat small torque with long service life;•Flange clamp holes connection apply to many standard.Usage of  electric actuator butterfly:The valve is mainly used to cut off the fluid it also can be designed to have the function of adjusting and cutting off the fluid.