Valves – electric actuator systemsadmin
As more and more occasions using automatic control, manual and automated mechanism is in place, people are requested implementing agencies can play a role in the control system and interface valve mechanical movement between the executive body also requires enhanced safety performance and environmental performance . In some dangerous situations, from the Association of the actuator means to reduce personal injury. Some special requirements for emergency valves open or close in exceptional circumstances, so that the valve actuator can stop the further spread while blocking dangerous to minimize the damage.
Valve actuator for controlling the valve opening requires implementing agencies to precisely position the valve go to any angle or displacement sensor feedback is opening signal, the feedback signal is not only the location, but also determined by this signal actuator when to start and when to stop. Currently, most are used to switch the valve actuator, and with the valve manufacturing industry continues to develop, as well as various types of valves growing surge of demand, today’s executive body design is far out of the simple switching function, they contain position sensing means, torque sensors, electrode protection means, logic control unit, communication modules and digital PID control module for the opening control, the sensor is an essential part, it plays an important role in the executive bodies.