V18345-2021421101 ABB TZIDC Digital Positioner TZIDC 4-20ma Electric Pneumatic Locator Rugged Design

The ABB V18345-2021421101 is an intelligent electric valve positioner in the ABB TZIDC series, designed for precise control in industrial automation. It is suitable for a wide range of industrial environments, including the oil and gas, power, water treatment, and chemical industries, enabling high-precision adjustment of pneumatic actuators, ensuring reliable and efficient process control.

Core Features and Functions
High-Precision Control:
Utilizing microprocessor technology and the TEIP11 core component, it supports precise positioning of linear (20-150mm) and rotary (up to 125°) valves. Its automatic tuning features, such as one-touch initialization, adapt to valve characteristics, reducing commissioning time and optimizing control response.

Robust Environmental Adaptability:
The rugged design, with an aluminum housing offering IP65 protection (estimated, based on series commonality), is suitable for harsh operating conditions. It features a wide operating temperature range (-40°C to +85°C) and vibration resistance up to 10g (10-150Hz), ensuring stable operation in high-temperature, high-pressure, and vibration environments.

Safety and Redundancy:
Supporting three-failure protection (power loss, gas loss, and signal loss), these faults trigger predefined safety actions (such as fail-safe or fault lockout) to prevent system loss of control. Select models are certified for explosion-proof applications such as ATEX and FM, making them suitable for use in hazardous areas.

Communication and Integration Capabilities:
Compatible with protocols such as HART, Profibus PA, and FOUNDATION Fieldbus, enabling real-time data exchange with the control room. Users can monitor parameters (such as valve position and gas consumption), perform diagnostics, and adjust settings via the local interface or remote software, facilitating predictive maintenance.

Energy Efficiency and Cost Optimization:
Low gas consumption (≤0.03 kg/h) reduces operating costs, while high gas capacity (≥13.5 kg/h) ensures fast response. Optional analog or digital feedback modules (such as 4-20 mA) enhance system flexibility.

Typical Applications:
Process industries: Modulating control valves (such as ball valves and butterfly valves), pumps, or compressors.

Critical Safety Systems: Applications requiring fail-safe protection (such as emergency shut-off valves).

Remote monitoring scenario: Centralized management and diagnosis are achieved through communication interfaces.

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