ABB V18345-2010521501 TZIDC Electro-Pneumatic Positioner Overview

Product Introduction

When precise valve positioning is critical in harsh industrial environments, the ABB V18345-2010521501 TZIDC Electro-Pneumatic Positioner delivers reliable performance. This robust device is designed for both linear and rotary actuators, offering a wide operating temperature range from -40 °C to +85 °C. With its compact aluminium case and IP 65 / NEMA 4X protection, it withstands demanding conditions while providing accurate control.

Technical Specifications Breakdown

The V18345-2010521501 operates on a 4-20 mA two-wire input signal with a nominal range of 4-20 mA and a maximum of 25 mA / 30 V. It features double-acting fail freeze output, ensuring the actuator remains in its last position during power loss. The output pressure range is 0-6 bar (0-90 psi), with air capacity reaching 13 kg/h at 6 bar supply. HART Protocol 5.1 communication enables remote configuration and diagnostics via the 20 mA signal line. The unit includes a plug-in module for analog position feedback (4-20 mA) and supports digital input with 24 V DC control voltage.

Industry Applications

This positioner excels in oil and gas, chemical processing, and power generation where reliable valve actuation is essential. The double-acting fail freeze feature prevents unwanted movement during electrical failures, enhancing safety in critical loops. Its SIL2 suitability and ATEX, FM, CSA, and IECEx approvals make it ideal for hazardous areas requiring intrinsic safety or non-incendive operation. The wide ambient temperature tolerance ensures consistent performance in extreme climates.

Installation & Setup Guidance

Mount the V18345-2010521501 to linear actuators per DIN/IEC 534/NAMUR or rotary actuators per VDI/VDE 3845. Use the 1/2-14 NPT cable entry and 1/4-18 NPT air pipe connections. The single push-button operating philosophy simplifies commissioning. Configure split range between 20% and 100% of the nominal range as needed. Ensure instrument air meets DIN/ISO 8573-1 Class 3 standards with particle size under 5 µm and oil content below 1 mg/m³.

Maintenance & Reliability

With an ambient temperature influence of ≤0.5% per 10 °C change and vibration influence ≤±1% up to 10 g at 80 Hz, the V18345-2010521501 maintains accuracy in challenging conditions. The aluminium case with electrostatic dipping varnish resists corrosion. Regular inspection of pneumatic connections and electrical terminals is recommended. The device meets seismic requirements per DIN/IEC 68-3-3 Class III, ensuring reliability during earthquakes.

Compatibility & Integration

The positioner integrates seamlessly with HART-compatible control systems via the 4-20 mA signal line. The local LKS adapter connector allows easy communication setup. It supports single or double acting actuators and offers configurable characteristic curves (linear, equal percentage 1:25, 1:50, 25:1, 50:1) with up to 20 reference points. The digital output follows DIN 19234/NAMUR standards for status feedback.

Buying Guide & Purchasing Advice

Before ordering, verify the required explosion protection level and output function. The V18345-2010521501 is configured without explosion protection and includes double-acting fail freeze. Confirm actuator compatibility and air supply pressure (1.4-6 bar). BluePLC Industrial offers this ABB positioner with expert support to ensure the correct configuration for your application. Contact our team for availability and lifecycle status.