The working process of the electric butterfly valve

Electric butterfly valves to electric valves and electric butterfly valve in the pneumatic control valve, its main flange and clamp connection, is important in the field of industrial automation control execution unit. Electric butterfly valve by quarter-turn actuators ( 0~90° Part of the rotary) And butterfly valve as a whole through the mechanical connection, after installation and debugging. According to the movement pattern classification with switch mode and external regulation. Switch type is directly connected to the power supply ( AC220V or other power levels of power) By the movements of the switch is, anti-missile has completed switch. External regulation is AC220V power as the power, industrial automation control system receives the preset parameter values of 4 ~ 20 ma ( 0 ~ 5 and other weak current control) Signal to complete the regulating action.