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- ABB
- V18345-2021421001
- Valve Positioner
- Sweden (SE)
- 168.5 × 101 × 114.5 mm
- 1.7 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The ABB V18345-2021421001 Valve Positioner is an intelligent electro-pneumatic control device designed for accurate and stable positioning of pneumatic control valves in industrial automation and process control systems.
The valve positioner receives control signals from PLC, DCS, or other industrial controllers and converts electrical commands into precise pneumatic output pressure to control actuator movement. By continuously comparing the required valve position with the actual valve feedback signal, the device automatically corrects positioning errors and maintains reliable valve operation.
The ABB V18345-2021421001 Valve Positioner features a compact industrial structure with dimensions of 168.5 × 101 × 114.5 mm and a weight of 1.7 kg, providing flexible installation capability for different pneumatic valve actuator applications.
This valve positioner is widely used in industries that require accurate control of flow, pressure, temperature, and other critical process variables.
Typical applications include:
- Oil and gas processing systems
- Chemical and petrochemical production lines
- Power generation equipment
- Water treatment facilities
- Steam and fluid control systems
- Industrial automation projects
- Process control applications
Technical Specifications
| Parameter | Description |
|---|---|
| Manufacturer | ABB |
| Model | V18345-2021421001 |
| Product Type | Valve Positioner |
| Control Technology | Electro-pneumatic positioning |
| Dimensions | 168.5 × 101 × 114.5 mm |
| Weight | 1.7 kg |
| Installation Method | Actuator-mounted installation |
| Application | Pneumatic control valve regulation |
| System Compatibility | PLC / DCS automation systems |
Working Principle
The ABB V18345-2021421001 Valve Positioner operates through a closed-loop valve control process.
The working sequence includes:
- The automation system sends a valve position command.
- The positioner receives and processes the control signal.
- The internal controller compares the target position with the actual valve position.
- The pneumatic output pressure is adjusted according to the position difference.
- The actuator moves the valve to the required position.
- The feedback system continuously monitors valve movement and maintains accuracy.
This feedback-based control method allows the valve positioner to provide stable operation even under changing pressure, flow, or load conditions.
Main Features
1. High-Precision Valve Position Control
The ABB V18345-2021421001 provides accurate positioning performance for industrial control valves.
Key advantages:
- Precise valve adjustment
- Reduced positioning deviation
- Improved process stability
- Fast response to control changes
Accurate valve positioning helps maintain consistent process conditions and improves production efficiency.
2. Intelligent Control and Adjustment
The valve positioner supports efficient setup and reliable operation through intelligent control functions.
Benefits include:
- Simplified commissioning
- Faster system startup
- Improved valve adaptation
- Reduced maintenance workload
This makes the device suitable for modern automated process environments.
3. Compact and Durable Design
With dimensions of 168.5 × 101 × 114.5 mm, the ABB V18345-2021421001 provides a compact structure for industrial valve applications.
Advantages:
- Space-saving installation
- Easy actuator mounting
- Convenient maintenance access
- Reliable mechanical performance
The compact housing allows installation in areas with limited space.
4. Stable Pneumatic Output Performance
The positioner provides accurate pneumatic control for actuator operation.
Main benefits:
- Smooth valve movement
- Stable actuator response
- Reduced valve fluctuation
- Improved control accuracy
It supports continuous operation in demanding industrial environments.
5. Reliable Industrial Automation Integration
The ABB V18345-2021421001 can be integrated into various industrial control systems.
Common applications include:
- PLC-based automation systems
- DCS process control platforms
- Industrial instrumentation systems
- Automated production equipment
Industrial Applications
Oil and Gas Industry
The ABB valve positioner provides reliable valve control in oil and gas operations.
Applications include:
- Pipeline regulation
- Pressure control systems
- Gas processing equipment
- Refinery automation
Accurate valve positioning improves process safety and operational efficiency.
Chemical and Petrochemical Industry
Chemical processes require stable and precise valve control.
Applications include:
- Reactor control systems
- Fluid flow regulation
- Pressure management
- Chemical processing equipment
The positioner helps maintain stable production parameters.
Power Generation Industry
Power plants rely on precise valve operation for efficient energy production.
Applications include:
- Steam control valves
- Boiler systems
- Cooling systems
- Auxiliary equipment control
Reliable valve regulation improves plant performance and equipment protection.
Water Treatment Industry
The ABB valve positioner supports automated control in water processing facilities.
Applications include:
- Flow adjustment
- Pumping systems
- Chemical dosing systems
- Water distribution control
Installation Guide
Mechanical Installation
Recommended installation procedure:
- Confirm the ABB V18345-2021421001 model.
- Check actuator mounting compatibility.
- Install the positioner securely on the valve actuator.
- Connect the feedback linkage correctly.
- Verify valve travel movement.
- Ensure proper mechanical alignment.
Correct mechanical installation ensures accurate valve positioning.
Pneumatic Installation
Before startup:
- Check compressed air quality.
- Verify supply pressure requirements.
- Connect pneumatic tubing correctly.
- Inspect all connections for leakage.
Recommended practices:
- Use clean and dry instrument air.
- Avoid contamination inside pneumatic lines.
- Confirm actuator movement before commissioning.
Electrical Installation
Electrical connection steps:
- Connect the control signal wiring.
- Verify terminal connections.
- Check grounding requirements.
- Confirm stable signal transmission.
- Test communication with the control system.
Proper electrical installation ensures reliable operation.
Commissioning Procedure
Recommended commissioning steps:
- Install the ABB V18345-2021421001 correctly.
- Connect pneumatic and electrical systems.
- Perform valve calibration.
- Check valve travel range.
- Verify position feedback accuracy.
- Test valve opening and closing operation.
- Confirm PLC/DCS control response.
Proper commissioning ensures stable and accurate valve performance.
Common Faults and Troubleshooting
| Fault Symptom | Possible Cause | Recommended Solution |
|---|---|---|
| Valve does not respond | Incorrect control signal | Check wiring and input signal |
| Valve movement is slow | Insufficient air supply | Check pneumatic pressure |
| Position error occurs | Calibration problem | Perform valve recalibration |
| Valve position unstable | Feedback linkage issue | Inspect mechanical connection |
| Air leakage detected | Damaged tubing or fittings | Repair pneumatic connections |
| No actuator movement | Internal pneumatic fault | Check positioner components |
Maintenance Recommendations
To maintain reliable operation:
- Inspect pneumatic air quality regularly
- Check tubing and fittings
- Verify valve calibration
- Monitor position feedback signals
- Inspect mechanical mounting
- Perform periodic functional testing
Regular maintenance helps reduce unexpected downtime and extends equipment service life.
Advantages of ABB V18345-2021421001 Valve Positioner
- High-precision valve positioning
- Intelligent electro-pneumatic control
- Compact industrial structure
- Reliable actuator operation
- Easy installation and commissioning
- Compatible with PLC and DCS systems
- Stable process control performance
- Suitable for demanding industrial applications
Frequently Asked Questions
What is ABB V18345-2021421001?
The ABB V18345-2021421001 is an intelligent valve positioner designed for precise pneumatic valve control in industrial automation systems.
What is the main function of ABB V18345-2021421001?
It converts control signals into accurate pneumatic actuator movement to regulate valve position.
Where is ABB V18345-2021421001 used?
It is commonly used in oil and gas, chemical, power generation, water treatment, and industrial process control applications.
What are the dimensions of ABB V18345-2021421001?
The dimensions are 168.5 × 101 × 114.5 mm.
What is the weight of ABB V18345-2021421001?
The weight is 1.7 kg.
Conclusion
The ABB V18345-2021421001 Valve Positioner is a reliable solution for accurate pneumatic valve control in industrial automation applications.
With its intelligent positioning technology, compact mechanical design, and stable electro-pneumatic performance, it helps improve process control accuracy, reduce maintenance requirements, and enhance overall system reliability.
The ABB V18345-2021421001 Valve Positioner is suitable for industries requiring precise valve regulation, dependable operation, and efficient industrial automation performance.