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Introduction to the angular stroke electric actuator

- Aug 02, 2018 -

These two actuators were previously composed of two parts: the servo reducer and the actuator. The electric actuator can be divided into three types: angular stroke, straight stroke and multi-turn. The function of the angular stroke electric actuator is to accept the conditioner. Or a standard value galvanic signal of 0~10, 4~20 mA or 1~5 volts sent by other instruments.

After the actuator becomes displacement thrust or corner torque, to operate the switch, valve, etc., to complete the obligation of automatic conditioning, now the inorganic electric integrated intelligent structure, their structure, mission principle and application methods are similar, the difference is only Lie, an input displacement (thrust one input angle (torque).\

The selection of the angular stroke electric actuator determines the electrical parameters according to the selected electric actuator. Because the electrical parameters of the different angular stroke electric actuator manufacturers are different, it is necessary to determine the electrical parameters when designing the selection, mainly the motor power. , extra current, secondary control loop voltage, etc., often neglect in this regard, the result of the control system and electric actuator parameters do not marry to form a task when the air gap trip, fuse blow, thermal overload relay maintenance take-off and other shortcomings, angular travel electric The rotation of the actuator input shaft is less than one week, that is, less than 360 degrees; usually (0~90) degrees to complete the valve opening and closing process control, the angular stroke electric actuator is used to control valves such as butterfly valves, ball valves, plug valves, etc. Straight-connected, base crank type

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