Excellent PLC
Product Introduction
The ABB V18345-2021421001 Valve Positioner is a compact electro-pneumatic control device designed for precise positioning of pneumatic control valves in industrial automation systems. It continuously compares the control signal with the actual valve position and adjusts the actuator output to maintain accurate and stable valve operation.
As part of the TZIDC series, this model is engineered for reliable performance, compact installation, and efficient valve control in demanding industrial environments. It supports stable process regulation and helps improve overall system performance by ensuring consistent valve response.
The device is widely used in industries such as oil and gas, power generation, chemical processing, water treatment, mining, and general manufacturing, where accurate valve control is essential for stable and safe operation.
Product Specifications
| Parameter | Description |
|---|---|
| Model | V18345-2021421001 |
| Manufacturer | ABB |
| Product Type | Electro-Pneumatic Valve Positioner |
| Series | TZIDC |
| Design Type | Compact |
| Signal Type | 4–20 mA, two-wire |
| Acting Type | Double acting / fail freeze |
| Housing Material | Aluminum |
| Control Function | Automatic Valve Position Control |
| Actuator Compatibility | Pneumatic actuators |
| Control Method | Closed-loop positioning control |
| Feedback Function | Continuous position monitoring |
| Installation Type | Field mounted |
| Application | Industrial process automation |
| Operating Environment | Industrial facilities |
| Dimensions | 168.5 × 101 × 114.5 mm |
| Weight | 1.7 kg |
Applications
● Oil and gas systems — Supports stable and accurate valve control in production and refining processes
● Power generation plants — Helps maintain reliable operation of steam and utility systems
● Chemical processing industries — Improves consistency of process control operations
● Petrochemical facilities — Enhances stability of automated control loops
● Water treatment systems — Supports precise flow and process regulation
● Mining operations — Provides reliable valve control in harsh environments
● Pulp and paper industry — Maintains stable process performance
● Industrial automation systems — Used across a wide range of process control applications
Advantages
● Compact design — Suitable for space-limited installations in modern control systems
● Stable control performance — Maintains consistent valve positioning under varying conditions
● 4–20 mA control compatibility — Easy integration with standard industrial systems
● Fail-safe operating behavior — Helps maintain defined valve state during disturbances
● Double acting capability — Supports flexible actuator control requirements
● Robust aluminum housing — Provides durability in industrial environments
● Accurate positioning control — Improves overall process stability
● Efficient operation — Supports optimized process performance with reliable response
