ABB AV1121000 pneumatic valve positioner

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Product Overview:

The ABB AV1121000 Pneumatic Valve Positioner is a high-precision actuator control device designed to regulate valve position for accurate flow control and process adjustment. It converts control signals into corresponding pneumatic outputs for actuator movement. With advanced pneumatic proportional control technology, excellent linearity, and high vibration resistance, the AV1121000 ensures precise, stable, and reliable valve operation in demanding industrial environments.

Technical Specifications:

• Model: AV1121000

• Brand: ABB

• Type: Pneumatic Valve Positioner

• Control Signal: 4–20 mA DC

• Supply Air Pressure: 1.4 – 7 bar (20 – 100 psi)

• Air Connection: 1/4" NPT

• Output Signal: Pneumatic control output to actuator

• Positioning Accuracy: ±0.5% F.S.

• Deadband: <0.2%

• Response Time: <0.3 s

• Operating Temperature: -20°C to +80°C

• Protection Class: IP65

• Mounting: Direct or bracket mounting on actuator

• Material: Aluminum alloy housing / stainless steel internal parts

• Weight: Approx. 2.5 kg

• Compliance: IEC 60534-6-1, NAMUR

Features and Advantages:

1. High-Precision Control: Advanced pneumatic feedback ensures ±0.5% positioning accuracy.

2. Excellent Linearity: Provides smooth and proportional valve control across the full range.

3. Robust Construction: Aluminum housing with dustproof, moisture-proof, and vibration-resistant design.

4. Low Air Consumption: Optimized pneumatic path reduces energy use.

5. Strong Compatibility: Works seamlessly with various pneumatic actuators and control systems.

6. Easy Maintenance: Modular design allows simple calibration and service.

7. Reliable Performance: Resistant to vibration, temperature, and humidity variations.

Applications:

• Petrochemical process control

• Power generation and boiler control systems

• Pharmaceutical and food processing industries

• Water treatment and environmental systems

• Pulp and paper automation systems

• Steel and metallurgical process control

Precautions:

1. Ensure clean, dry air supply before installation to prevent contamination.

2. Regularly inspect air filters and tubing connections for leaks.

3. Use certified calibration tools for accurate setup.

4. Do not exceed the maximum supply pressure of 7 bar.

5. Use protective covers in high-temperature or corrosive environments.

6. Disconnect air and control signals before performing maintenance.

The structure and details of the product：

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