ABB V18345-2027151001 Digital Positioner

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• 1. Product Overview

  The ABB V18345-2027151001 Digital Positioner is an intelligent device for controlling valve actuators. It receives standard industrial control signals (4–20 mA or HART protocol) and precisely converts them into valve position. The positioner ensures fast, precise, and reliable valve operation through digital feedback and auto-tuning features.

  This digital positioner is suitable for a wide range of industrial process control systems, including chemical, power, oil, gas, and water treatment industries, improving valve control accuracy and process stability.

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  2. Main Technical Data

  • Model: V18345-2027151001

  • Type: Digital Valve Positioner

  • Control signal: 4–20 mA DC, HART protocol optional

  • Valve stroke feedback: Intelligent digital sensor

  • Actuator type: Pneumatic or electric

  • Stroke range: Adjustable (based on actuator specification)

  • Accuracy: ≤ ±0.5%

  • Ambient temperature: –40 °C to +85 °C

  • Protection: IP66 / NEMA 4X

  • Material: Aluminum or stainless steel housing (optional)

  • Power supply: 24 V DC

  • Communication interface: HART / optional Foundation Fieldbus

  • Features: Auto-calibration, stroke limitation, fault diagnostics, signal feedback

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  3. Key Advantages and Features

  1. High-precision control: Digital feedback ensures accurate valve positioning.

  2. Intelligent auto-tuning: Learns valve characteristics for optimized response.

  3. Fast response: Improves valve adjustment speed and process stability.

  4. Multi-protocol compatibility: Supports 4–20 mA and HART for easy integration with DCS/PLC.

  5. Rugged and durable: IP66 / NEMA 4X protection suitable for harsh environments.

  6. Diagnostics and safety: Built-in fault detection for maintenance and operational safety.

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  4. Typical Applications

  • Chemical and petrochemical process control

  • Power plant boiler and turbine valve control

  • Oil and gas transportation and processing

  • Water treatment and supply systems

  • Food, beverage, and pharmaceutical automation

  • Industrial automation requiring precise valve regulation

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  5. Installation and Operation Notes

  1. Signal matching: Ensure control signal matches the positioner specification (4–20 mA or HART).

  2. Proper installation: Follow actuator manufacturer guidelines to avoid mechanical stress.

  3. Environmental compatibility: Ensure protection rating suits the installation environment.

  4. Regular calibration: Perform routine calibration and functional checks for accuracy.

  5. Power supply: Use stable 24 V DC power to avoid signal errors.

  6. Diagnostic monitoring: Utilize built-in diagnostics to monitor valve health and improve safety.

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The structure and details of the product：

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