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- ABB
- V18345-1021120001
- Valve Positioner
- Sweden (SE)
- 168.5 × 101 × 114.5 mm
- 1.7 kg
- Xiamen, China
- New & In Stock
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Product Overview
The ABB V18345-1021120001 Valve Positioner is an industrial electro-pneumatic control device designed for precise positioning and reliable operation of pneumatic control valves and actuators in process automation systems.
As an important field control component, the valve positioner provides a connection between automation controllers and pneumatic actuators. It receives electrical control signals from PLC, DCS, or other industrial control systems and converts these signals into regulated pneumatic output to control valve actuator movement accurately.
The ABB V18345-1021120001 uses closed-loop feedback control technology to continuously monitor valve position and automatically adjust the actuator output according to the required control command. This helps improve valve positioning accuracy, reduce operating deviation, and maintain stable industrial process performance.
With dimensions of 168.5 × 101 × 114.5 mm and a weight of 1.7 kg, the compact design allows easy installation and integration into various industrial valve actuator systems.
Typical applications include:
- Process automation systems
- Pneumatic control valve applications
- Chemical and petrochemical industries
- Power generation facilities
- Oil and gas automation systems
- Water treatment plants
- Industrial instrumentation systems
- Manufacturing process control
Technical Specifications
| Parameter | Description |
|---|---|
| Manufacturer | ABB |
| Model | V18345-1021120001 |
| Product Type | Valve Positioner |
| Control Technology | Electro-Pneumatic Control |
| Control Method | Closed-Loop Position Regulation |
| Input Signal | Industrial Control Signal |
| Output Control | Pneumatic Actuator Adjustment |
| Installation Type | Valve Actuator Mounting |
| Dimensions | 168.5 × 101 × 114.5 mm |
| Weight | 1.7 kg |
| Application Area | Industrial Process Automation |
Working Principle
The ABB V18345-1021120001 Valve Positioner operates through a closed-loop automatic control process.
The controller sends a desired valve position command to the positioner. After receiving the signal, the device processes the command and compares the requested position with the actual valve position feedback.
The operating process includes:
- Receiving the control signal from the automation system.
- Processing the required valve position command.
- Detecting actual actuator movement.
- Comparing target position with actual position.
- Adjusting pneumatic output pressure.
- Controlling actuator movement.
- Maintaining accurate valve positioning.
This feedback regulation method improves control accuracy and ensures stable operation under changing industrial conditions.
Main Features
1. High-Precision Valve Position Control
The ABB V18345-1021120001 provides accurate control for pneumatic valve actuators.
Key advantages:
- Precise valve adjustment
- Stable actuator response
- Reduced positioning errors
- Improved process consistency
Accurate valve positioning helps maintain reliable production conditions and improves automation efficiency.
2. Reliable Electro-Pneumatic Regulation
The valve positioner combines electronic signal processing with pneumatic control technology.
Main functions include:
- Receiving electrical commands
- Processing valve position signals
- Adjusting pneumatic output pressure
- Controlling actuator movement
This allows reliable communication between industrial control systems and field equipment.
3. Advanced Feedback Control
The ABB V18345-1021120001 continuously monitors valve position during operation.
Benefits include:
- Automatic position correction
- Improved system stability
- Reduced manual adjustment requirements
- Better response to process changes
4. Compact Industrial Design
The compact structure makes the valve positioner suitable for different industrial installation environments.
Advantages:
- Space-saving installation
- Easy actuator integration
- Convenient maintenance
- Flexible application capability
5. Reliable Long-Term Operation
The ABB V18345-1021120001 is designed for continuous operation in industrial environments.
Main benefits:
- Stable performance
- Reduced equipment downtime
- Durable industrial construction
- Extended service life
Industrial Applications
Process Automation Industry
The ABB V18345-1021120001 is widely used in automated process control systems.
Typical applications:
- Flow regulation
- Pressure control
- Temperature adjustment
- Process optimization
Chemical and Petrochemical Industry
Chemical production requires accurate valve regulation to maintain safe and efficient operation.
Applications include:
- Reactor control
- Chemical flow adjustment
- Pipeline automation
- Process equipment control
Power Generation Industry
The valve positioner supports reliable operation of industrial valve systems.
Applications:
- Steam valve control
- Cooling system regulation
- Auxiliary equipment control
- Power process automation
Oil and Gas Industry
Oil and gas systems require accurate valve positioning for stable production.
Applications:
- Pipeline regulation
- Pressure management
- Flow control
- Automated field equipment
Water Treatment Industry
The ABB V18345-1021120001 can be applied in automatic water processing systems.
Applications:
- Water flow control
- Pumping system regulation
- Treatment process adjustment
- Distribution system automation
Installation Guide
Mechanical Installation
Recommended installation steps:
- Confirm the ABB V18345-1021120001 model.
- Verify compatibility with the pneumatic actuator.
- Install mounting accessories.
- Secure the positioner correctly.
- Check valve mechanical movement.
Proper mechanical installation ensures accurate valve operation.
Electrical Connection
Before electrical wiring:
- Confirm signal requirements.
- Check terminal connections.
- Verify power conditions.
- Ensure proper grounding.
Recommended practices:
- Disconnect power before installation.
- Use suitable industrial cables.
- Avoid electrical interference.
- Check all connections before startup.
Pneumatic Connection
Recommended pneumatic installation steps:
- Ensure clean and dry instrument air supply.
- Connect pneumatic tubing correctly.
- Check fittings and sealing.
- Inspect for air leakage.
- Test actuator movement.
Stable pneumatic pressure is essential for reliable valve control.
Commissioning Procedure
Recommended commissioning steps:
- Complete mechanical installation.
- Connect electrical wiring.
- Connect pneumatic lines.
- Apply control signals.
- Perform valve calibration.
- Test actuator response.
- Verify automatic operation.
Correct commissioning improves control accuracy and system reliability.
Common Faults and Troubleshooting
| Fault Symptom | Possible Cause | Recommended Solution |
|---|---|---|
| Valve does not move | No pneumatic supply | Check air pressure and connections |
| Incorrect valve position | Calibration error | Perform position calibration |
| Slow response | Pneumatic restriction | Inspect tubing and fittings |
| Valve oscillation | Control instability | Check control parameters |
| Feedback error | Position feedback issue | Inspect feedback components |
| Positioner not responding | Signal or wiring problem | Check electrical connections |
Maintenance Recommendations
To maintain ABB V18345-1021120001 performance:
- Inspect pneumatic connections regularly
- Maintain clean instrument air
- Check electrical terminals
- Monitor valve response
- Perform periodic calibration
- Protect equipment from contamination
Regular maintenance helps reduce unexpected failures and extends equipment service life.
Advantages of ABB V18345-1021120001 Valve Positioner
- High-precision valve positioning
- Reliable electro-pneumatic control
- Stable feedback regulation
- Compact industrial design
- Easy actuator integration
- Improved process control accuracy
- Reduced maintenance requirements
- Reliable long-term operation
Frequently Asked Questions
What is ABB V18345-1021120001?
The ABB V18345-1021120001 Valve Positioner is an industrial electro-pneumatic device used for accurate control of pneumatic valve actuators.
What is the main function of a valve positioner?
A valve positioner converts electrical control signals into pneumatic adjustments to control actuator movement and maintain accurate valve positioning.
Where is ABB V18345-1021120001 used?
It is commonly used in process automation, chemical plants, power generation systems, oil and gas facilities, and water treatment applications.
What are the dimensions of ABB V18345-1021120001?
The dimensions are 168.5 × 101 × 114.5 mm, with a weight of 1.7 kg.
Conclusion
The ABB V18345-1021120001 Valve Positioner is a reliable industrial automation component designed for precise pneumatic valve control and stable process operation.
With its electro-pneumatic regulation technology, closed-loop feedback capability, and compact industrial structure, it provides an effective solution for modern process automation applications.
The ABB V18345-1021120001 helps improve valve control accuracy, optimize industrial processes, reduce operational fluctuations, and support reliable long-term performance in demanding automation environments.