1C31194G04阀门定位器是控制阀的主要附件。它将阀杆位移信号作为输入的反馈测量信号，以控制器输出信号作为设定信号，进行比较，当两者有偏差时，改变其到执行机构的输出信号，使执行机构动作,建立了阀杆位移量与控制器输出信号之间的一-对应关系。 因此,阀门定位器组成以阀杆位移为测量信号，以控制器输出为设定信号的反馈控制系统。该控制系统的操纵变量是阀门定位器去执行机构的输出信号。 1C31194G04用于 对调节质量要求高的重要调节系统，以提高调节阀的定位精确及可靠性。
1C31194G04
1C31194G04用于阀门两端压差大的场合。通过提高气源压力增大执行机构的输出力，以克服液体对阀芯产生的不平衡力，减小行程误差。 1C31194G04当被调介质为高温、高压、低温、有毒、易燃、易爆时，为了防止对外泄漏，往往将填料压得很紧，因此阀杆与填料间的摩擦力较大，此时用定位器可克服时滞。 1C31194G04被调介质为粘性流体或含有固体悬浮物时，用定位器可以克服介质对阀杆移动的阻力。
1C31194G04
1C31194G04用于大口径的调节阀，以增大执行机构的输出推力。1C31194G04当调节器 与执行器距离在60m以上时，用定位器可克服控制信号的传递滞后，改善阀门的动作反应速度。 1C31194G04用来改善调节阀的流量特性。1C31194G04个调节器控制两个执行器实行分程控制时，可用两个定位器，分别接受低输入信号和高输入信号，则-一个执行器低程动作,另一个高程动作，即构成了分程调节。
1C31194G04
The 1C31194G04 valve positioner is the main accessory of the control valve. It takes the valve stem displacement signal as the input feedback measurement signal and the controller output signal as the set signal for comparison. When there is a deviation between the two, the output signal to the actuator is changed to make the actuator act, establishing a corresponding relationship between the valve stem displacement and the controller output signal. Therefore, the valve locator consists of a feedback control system with the valve stem displacement as the measurement signal and the controller output as the set signal. The manipulation variable of this control system is the output signal of the valve locator to the actuator. 1C31194G04 is used in important control systems that require high quality regulation to improve the positioning accuracy and reliability of control valves.
1C31194G04
1C31194G04 is used in situations where the pressure difference between the two ends of the valve is large. By increasing the pressure of the gas source and increasing the output force of the actuator, the imbalance force generated by the liquid on the valve core is overcome, and the stroke error is reduced. When the medium being adjusted is high temperature, high pressure, low temperature, toxic, flammable, and explosive, in order to prevent external leakage, the packing is often pressed very tightly. Therefore, the friction force between the valve stem and the packing is relatively large. At this time, using a locator can overcome the time delay. When the medium being adjusted is a viscous fluid or contains solid suspended solids, using a locator can overcome the resistance of the medium to the movement of the valve stem.
1C31194G04
1C31194G04 is used for large-diameter regulating valves to increase the output thrust of the actuator. When the distance between the regulator and the actuator is more than 60m, using a locator can overcome the transmission delay of the control signal and improve the action response speed of the valve. 1C31194G04 is used to improve the flow characteristics of the regulating valve. When the 1C31194G04 regulator controls two actuators to implement split range control, two positioners can be used to receive low input signals and high input signals respectively. If one actuator operates in a low range and the other operates in an elevation, it constitutes split range control.
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