AS4201F-04-12S: Intelligent Regulation, Precise Flow Control! Electric Control Valve Empowers High-Precision Process Automation​

In process automation requiring precise regulation of flow or pressure, control valves must meet extremely high demands for accuracy, response speed, and intelligent communication capabilities. The AS4201F-04-12S electric control valve integrates a high-precision actuator, intelligent positioner, and high-quality valve body into a single unit. By receiving control signals, it enables continuous and precise adjustment of fluid parameters, serving as a key final control element for enhancing process quality and enabling intelligent control.​​Core Product Advantages​​​​High-Precision Electric Actuation​​Utilizes a precise stepper or servo motor drive, offering high spool displacement control accuracy (up to ±0.5% FS) and supporting seamless, precise regulation of flow/pressure.​​Intelligent Closed-Loop Control​​Features a built-in position feedback sensor (e.g., potentiometer, encoder) for real-time valve position monitoring and automatic calibration, ensuring close alignment between the setpoint and actual output with strong anti-interference capability.​​Optimized Linear Characteristics​​The specially designed spool characteristic curve (e.g., equal percentage, linear) provides excellent flow characteristics, meeting the control requirements of various working conditions and ensuring control linearity and stability.​​Integrated Digital Communication​​Accepts analog input signals (4-20mA/0-10V). Also integrates digital communication protocols such as ​​HART, PROFIBUS-PA, FF, or IO-Link​​ (the -S may indicate the smart version), enabling remote parameter configuration, real-time monitoring, fault diagnosis, and predictive maintenance.​​Corrosion Resistance & Wide Compatibility​​The valve body is constructed from stainless steel (SUS304/316) with seals like EPDM or Viton, making it suitable for water, steam, gas, and various mild chemicals, offering good corrosion resistance.​​Typical Application Scenarios​​​​Process Control:​​ Precise flow/pressure regulation for reactor feeding, pH adjustment, and temperature control in chemical and pharmaceutical production.​​Energy Management:​​ Coolant/heat medium flow distribution in HVAC systems and thermal balance control in energy stations.​​Water Treatment Systems:​​ Precise dosing pump metering and flow control in wastewater treatment plants.​​Laboratory Equipment:​​ Providing programmable flow and pressure simulation for precision fluid experiments.​​Technical Parameters (Typical Values)​​​​Port Size:​​ DN15 / G1/2″ (04 may indicate the size code)​​Flow Coefficient:​​ Kv ≈ 4.0 (or as per size; 12S may indicate the Kv value or characteristic code)​​Input Signal:​​ 4-20mA DC / Digital Communication​​Operating Pressure:​​ 1.6 MPa​​Protection Rating:​​ IP65 / IP67​​Summary​​The AS4201F-04-12S electric control valve is an ​​”Intelligent Actuation Terminal”​​ in the field of process automation. Leveraging its core advantages of high-precision regulation, intelligent closed-loop control, and digital communication, it accurately translates control room commands into precise process parameters onsite, providing essential assurance for efficient, stable, and intelligent process production.​​Choosing the AS4201F-04-12S means selecting a precise, intelligent, and reliable process control solution!