◆ Positioning devices: YT-1000R, YT-1000L, YT-1200R, YT-1200L, ALHVP-2009 intelligent positioning device, ALHVP-2012 intelligent explosion-proof positioning device, etc. 

◆ Overview: 

An electrical valve positioner generally refers to an pneumatic valve positioner. A pneumatic valve positioner is one of the important accessories and components of a pneumatic regulating valve. It serves the function of valve positioning. 

◆ Main Functions: 

The pneumatic valve positioner and the pneumatic actuator together form the automatic control unit and are connected to various regulating valves. After being debugged and installed, they are combined to form a pneumatic regulating valve. 

Used in various fields of industrial automation process control. 

◆ Structural Principle: 

The pneumatic valve positioner receives weak electrical signals such as 4-20mA from the controller or control system, and transmits air signals to the pneumatic actuator to control the valve position. 

It is used in conjunction with pneumatic control valves to form a closed-loop control circuit. The direct current signal given by the control system is converted into an air signal for driving the regulating valve, thereby controlling the operation of the regulating valve. At the same time, feedback is provided based on the opening degree of the regulating valve, enabling the valve position to be accurately positioned according to the control signal output by the system. 

◆ Combined use: 

It can be used for both single-acting type (spring-return type) and double-acting type pneumatic actuators.

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