ABB V18345-1010421001 TZIDC Electro-Pneumatic Positioner

Product Overview

When precise valve positioning is critical in harsh industrial environments, the ABB V18345-1010421001 TZIDC Electro-Pneumatic Positioner delivers reliable performance. This intelligent positioner features a configurable operator panel and indicator, making it suitable for linear and rotary actuators. With an aluminum housing rated IP 65 (NEMA 4X), it withstands dust and water ingress in demanding applications.

Technical Specifications Breakdown

The V18345-1010421001 operates with a 4...20 mA two-wire input and provides a double-acting fail-safe output in case of power loss. It accepts supply pressure from 1.4 to 6 bar (20 to 90 psi) and consumes less than 0.03 kg/h (0.015 scfm) of air, independent of supply pressure. The digital input recognizes logical switching states: 0...5 V DC for state "0" and 11...30 V DC for state "1". The digital output follows DIN 19234/NAMUR with a supply voltage of 5...11 V DC. Pneumatic connections use 1/4-18 NPT threads, while electrical connections are 1/2-14 NPT. The unit weighs 1.7 kg.

Industry Applications

This positioner excels in oil and gas, chemical processing, and power generation plants where precise valve control is essential. Its ATEX and IECEx certifications (II 2G EEx ib IIC T6 and IECEx Ex ib IIC T6) allow safe operation in hazardous areas with flammable gases. The double-acting fail-safe ensures the valve moves to a safe position during electrical failure, reducing downtime and preventing accidents.

Installation & Setup Guidance

Mount the V18345-1010421001 to linear actuators per DIN/IEC 534/NAMUR or to rotary actuators per VDI/VDE 3845. Use the integral mounting option for compact installations. Connect the 4...20 mA two-wire input via the connector plug for LKS adapter. Ensure pneumatic lines use 1/4-18 NPT threads and electrical cables use 1/2-14 NPT. Verify supply pressure remains within 1.4...6 bar. For hazardous environments, confirm the ambient temperature stays within the certified range for the selected temperature class (T4, T5, or T6).

Maintenance & Reliability

Routine inspection of the aluminum housing and pneumatic connections helps maintain IP 65 integrity. The electrostatic dipping varnish with epoxy resin resists corrosion in harsh atmospheres. Check the analog position feedback module periodically for consistent 4...20 mA output. Since the positioner uses minimal air consumption, it reduces operational costs over its service life. Always follow the manufacturer's safety manual when servicing equipment in hazardous locations.

Compatibility & Integration

The V18345-1010421001 integrates with most DCS and PLC systems via its standard 4...20 mA analog input. The plug-in module provides analog position feedback (4...20 mA) for closed-loop control. The digital input and output follow NAMUR standards, ensuring compatibility with common industrial control systems. For hazardous area installations, the intrinsic safety certifications (EEx ib IIC) allow direct connection to certified barriers.

Buying Guide & Purchasing Advice

Before ordering the ABB V18345-1010421001, verify your actuator type (linear or rotary) and mounting requirements. Confirm the required temperature class (T4, T5, or T6) matches your ambient conditions. BluePLC Industrial stocks this positioner and can advise on availability and lead times. Contact our team to confirm current lifecycle status and ensure the unit meets your project specifications.