Technical Specifications 4-20mA analog input signal, pneumatic output, air supply pressure range, linear and rotary valve compatible, IP65 housing protection.
Functional Features Valve position closed-loop control, automatic calibration, split range capability, high positioning accuracy, low air consumption.
Application Scenarios Chemical process control, oil and gas pipeline, power plant valve control, industrial process regulating valves.
Performance Parameters High positioning accuracy, fast step response, stable operation under vibration, wide ambient temperature tolerance.
Material Composition Aluminum die-cast housing, pneumatic booster, position feedback sensor, electronic control circuit.
Structural Characteristics Field mount housing, local adjustment screws, air supply and output ports, electrical signal terminal compartment.
Working Principle Compares 4-20mA input setpoint with actual valve position feedback, adjusts output air pressure to pneumatic actuator to move valve to target position.
Installation Requirements Mount on valve actuator, connect instrument air supply, wire 4-20mA control signal, perform auto calibration after installation.
Usage Notes Supply clean dry instrument air. Check air line for leakage periodically. Calibrate positioner after valve maintenance.
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