ABB TZIDC V18345-1010121001 Electro-Pneumatic Positioner – In Stock

V18345-1010121001 | ABB TZIDC Electro-Pneumatic Positioner

The V18345-1010121001 represents the pinnacle of ABB’s TZIDC smart positioner series. This digital, configurable instrument excels in managing pneumatic final control elements with high precision. It utilizes a two-wire 4-20 mA input signal and features an integrated operator panel for onsite adjustments.

Technical Configuration Breakdown

• Base Series: V18345 (TZIDC)
•   └─ Case / Mounting [1]: Varnished aluminum, IP 65 (NEMA 4X) protection.
•   └─ Input [1]: 4-20 mA two-wire communication with LKS adapter plug.
•   └─ Explosion Protection [0]: Standard non-explosion proof version.
•   └─ Output / Safe Pos [1]: Single acting with “Fail-Safe” logic on power loss.
•   └─ Connections [2]: 1/2-14 NPT cable entry and 1/4-18 NPT pneumatic ports.
•   └─ Option Modules [1]: Plug-in analog position feedback (4-20 mA range).
•   └─ Mechanical Kit [0]: Standard configuration without digital feedback kit.
•   └─ Design [1]: Standard varnish and coding.

Engineering Performance Data

• Input Range: 4 to 20 mA nominal signal.
• Supply Pressure: 1.4 to 6 bar (20 to 90 psi).
• Air Consumption: Ultra-low at < 0.03 kg/h (0.015 scfm).
• Signal Output: 4 to 20 mA analog position feedback (two-wire).
• Digital Interface: Logical “0” (0-5V DC) and Logical “1” (11-30V DC).
• Temperature Tolerance: -40 °C to +85 °C operational range.
• Housing Weight: 1.7 Kg robust aluminum build.

Optimized Applications and Diagnostics

• Compatible Equipment: Linear actuators (DIN/IEC 534 / NAMUR) and Rotary actuators (VDI/VDE 3845).
• Industry Scenarios: Ideal for chemical processing, water treatment, and HVAC systems where precise flow control is mandatory.
• Diagnostic Capability: The V18345-1010121001 monitors internal parameters and detects air supply fluctuations via the built-in indicator.

Shipping and Service Standards

• Global Logistics: All orders ship via FedEx, UPS, or DHL for rapid worldwide transit.
• Standard Protection: Every unit includes a 12-month quality assurance period.
• Package List: 1x ABB V18345-1010121001 unit and factory-sealed protective packaging.
• Contact Information: Inquiries at info@oiltechcontrols.com or +86 158 8020 0923.

Frequently Asked Questions

• How does the “Fail-Safe” function behave during a power failure?
  The pneumatic output exhausts to ensure the valve moves to its predetermined safe de-energized position.
• What is the primary benefit of the analog feedback module [Option 1]?
  It provides an independent 4-20 mA loop that reflects the actual valve stem position to the DCS.
• Can this model be mounted on a rotary actuator?
  Yes, the aluminum case supports both NAMUR linear mounting and VDI/VDE 3845 rotary standards.
• Selection Guide: Should I choose G 1/4 or 1/4-18 NPT air pipes?
  This V18345-1010121001 uses 1/4-18 NPT; always match your existing facility fittings to prevent leaks.
• Experience Note: What causes the most common field failures?
  Poor air quality is the main culprit; we recommend a 5-micron filter regulator to protect the pilot valve.

Author: Oiltech Controls

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