Electric actuator actuator power as an energy source, according to the structure can be divided into the electric control valve, solenoid valve, the electric speed pump and the electric power regulator and accessories.
Electric control valve is the most commonly used electric actuators, electric actuators or electro-hydraulic executive agencies and regulatory agencies (control valve). Electric actuator or electro-hydraulic implementing agencies according to the controller output signal, converted to control the linear displacement of the valve stem or control valve shaft angular displacement. The adjustment the institutional part can be used direct access to the single-seat valve, double seat valves, angle valve, butterfly valve, ball valve.angle seat valve
The solenoid valve is electricity magnet for dynamic components of the two control electric actuator. Electric speed pump by changing the speed of the pump motor to adjust the pump flow electric actuator, the input signal changes into changes in the motor supply frequency commonly used frequency converter, the motor speed control. Adjust the flow control valve throttling method comparison, it has the advantages of energy saving, which is gradually applied. Electrical power regulator is controlled with the electrical components of the electrical energy of the actuator, such as commonly used in induction regulator, thyristor regulator · changed by changing the current flowing through the load or the voltage applied to both ends of the load to the load of the electric power, to achieve control purposes. E.g., using a thyristor regulator to control the heater voltage, so that the temperature of the heater to meet the required temperature requirements.two position three way valve
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