◆ Locator: YT-1000R, YT-1000L, YT-1200R, YT-1200L 

 ◆ Overview: 

 The valve positioner, which is divided into pneumatic valve positioner, electric-gas valve positioner and intelligent valve positioner according to structure, is the main accessory of the regulating valve. It is usually used with the pneumatic regulating valve. It accepts the output signal of the regulator, and then uses its output signal to control the pneumatic regulating valve. When the regulating valve works, the position of the valve stem The movement is also fed back to the valve positioner through the mechanical device, and the valve position status is transmitted to the upper system through electrical signals. 

 ◆ Working principle: 

 The valve positioner is the main accessory of the control valve. It takes the stem displacement signal as the input feedback measurement signal and the controller output signal as the setting signal for comparison. When there is a deviation between the two, it changes the output signal to the actuator to make the actuator operate, and establishes a one-to-one correspondence between the stem displacement and the controller output signal. Therefore, the valve positioner consists of a feedback control system with the stem displacement as the measurement signal and the controller output as the set signal. The operating variable of the control system is the output signal of the valve positioner to de-execute the mechanism. 

 ◆ Suitable varieties: 

 Commonly used actuators are divided into pneumatic actuators and electric actuators, which are divided into straight stroke and angular stroke. It is used to open and close all kinds of valves, air plates, etc. automatically and manually.

Each process, each facility, and each environmental constraint has its own special requirements. As a result, Kinko offers a comprehensive range of products that include different performance levels, pressures, functions and materials.