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An actuator requires a control signal and a source of energy. The supplied main energy source may be electric current, hydraulic fluid pressure, or pneumatic pressure. When the control signal is received, the actuator responds by converting the energy into mechanical motion. The actuator for the control valve enables precise access of the valve to any position.

The design of the actuator is far beyond the simple switching function. An actuator put all the devices into a compact box including position induction device, torque induction device, electrode protection device, logic control device, digital communication module and PID control module.
  • Pneumatic actuato..