Free Consultation Hotline
Introduction to the Features of Intelligent Valve Positioners
Release time:
2023-12-04 11:14
Smart Valve Positioner Feature Introduction:
1. The intelligent valve positioner system primarily consists of a control unit, an electrical-to-pneumatic (I/P) conversion unit, and a valve-position feedback detection unit. The positioner and the actuator form a closed-loop feedback system. The input unit receives a 4–20 mA current signal from the controller. The valve-position feedback signal, serving as the controlled variable, is compared with the setpoint in the microprocessor; the resulting deviation triggers the main control board to output pulses of varying duration, thereby regulating the inflation and deflation rates and the actuation characteristics of the actuator, thus controlling the operation of the control valve and precisely positioning it.
2. Today, with the rapid advancement of computer, electronic, communication, and intelligent predictive diagnostic technologies, the demand for smart valve positioners is steadily increasing. These devices are required to support concurrent network communication and power supply over a single cable, while their core pneumatic control components must operate at ultra-low power consumption to ensure the safe and reliable operation of networked bus-based control systems.
3. Intelligent valve positioners feature high reliability, high control accuracy, easy functional expansion, and communication capabilities, fully meeting the requirements of networked, integrated, and intelligent development in industrial control systems. They fundamentally address the shortcomings of traditional mechanical valve positioners, such as high power loss, slow response, susceptibility to overheating, mechanical wear, and electromagnetic interference. These intelligent positioners employ pneumatic pilot technology to achieve internal air-path control: a small valve regulates the flow of compressed air, which in turn actuates a larger valve to control the flow of the process medium. This hierarchical control approach is realized through the use of piezoelectric valves.
2020-01-19
CONTACT INFORMATION
Address: Room 501, Building 9, Guanggu Power Green Environmental Protection Industrial Park, 308 Guanggu Avenue, Donghu High-tech Zone, Wuhan City, Hubei Province
Telephone:（86-27）8738-3559 Free Hotline:400-878-5856
Business Hotline (Business hotline):13387658687,13707140294
Technical Hotline:13628621551
Business mailbox:torleo@qq.com
Company Email:1031076000@qq.com
OFFICIAL ACCOUNTS
Welcome to our official public number.
ONLINE MESSAGE
SAF Coolest v1.3.1.2 设置面板 SWWSX-AIUY-HASWE-AFV
无数据提示
Sorry, the current column is being updated, please look forward to it!
You can view other columns or returnHome Page