V18345-1011121001 ABB TZIDC Positioner | ATEX Fail-Safe

Product Description

• The V18345-1011121001 is a premium ABB TZIDC intelligent positioner designed for high-stakes automation.
• It features a single-acting fail-safe mechanism that ensures safety during signal interruptions.
• The V18345-1011121001 is fully ATEX certified for EEx ib IIC T6 hazardous zones.
• Equipped with an integrated operator panel, it allows for seamless onsite configuration and diagnostics.
• This unit includes a built-in 4-20mA analog feedback module for precise real-time position monitoring.

V18345-1011121001 Configuration Breakdown

• V18345 (TZIDC Series)
  • 10 — Case: Aluminum IP 65 (NEMA 4X) without mechanical indicator
  • 1 — Communication: 4-20mA input with LKS Adapter support
  • 1 — Explosion Protection: ATEX Ex II 2 G EEx ib II C T6
  • 1 — Output Action: Single acting, Fail-Safe logic
  • 2 — Connections: 1/2-14 NPT (Electrical) and 1/4-18 NPT (Air)
  • 1 — Analog Feedback: Plug-in module (4…20mA, two-wire)
  • 00 — Mech Feedback: None installed
  • 1 — Design: Standard ABB factory version

Technical Specifications

• Brand: ABB
• Model: V18345-1011121001
• Supply Pressure: 1.4 to 6 bar (20 to 90 psi)
• Air Quality: Instrument air free of oil, water, and dust (Class 3)
• Linearity: Characteristic deviation ≤ 0.5 %
• Resolution: High-precision conversion with > 4000 steps
• Frequency Response: Ultra-fast 20 msec sample rate
• Temperature Stability: Deviation ≤ 0.5 % per 10 °C change
• Seismic Resilience: Meets DIN/IEC 68-3-3 Class III for extreme environments
• Interference Resistance: Vibration influence ≤ ± 1 % up to 10 g / 80 Hz

Oiltech Controls Limited’s Insight

• The V18345-1011121001 is our top choice for ATEX regulated chemical processing.
• Its fail-safe design is critical for protection in emergency shutdown scenarios.
• Unlike the “fail-freeze” models, this V18345-1011121001 ensures the valve vents air to return to a safe state.
• We recommend this model for actuators where analog feedback is required for DCS validation.

Compatibility & Diagnostics

• Compatible Devices: Fits linear actuators (NAMUR) and rotary actuators (VDI/VDE 3845).
• Typical Scenarios: High-vibration gas pipelines, refinery control loops, and offshore platforms.
• Diagnostic Capabilities: Onboard HART data access and 20-point configurable characteristic curves.

Logistics & Warranty

• Warranty: 12-month standard quality guarantee included.
• Express Shipping: Worldwide delivery via FedEx, UPS, and DHL.
• Quality: 100% Original ABB factory-sealed units.

Professional FAQ

• Q: What makes the V18345-1011121001 different from the fail-freeze model?
  A: This model is Fail-Safe, meaning it exhausts air upon power loss to return the valve to its spring-forced position.
• Q: Is the ATEX certification valid for North American installations?
  A: While ATEX is a European standard, this unit often meets equivalent requirements; please check your local NEMA 4X code.
• Q: Can I use this V18345-1011121001 with high-pressure air supplies?
  A: Only up to 6 bar (90 psi). Exceeding this may damage the internal pneumatic relay.
• Q: How do I select between linear and rotary mounting?
  A: The V18345-1011121001 supports both; you simply need the correct mechanical mounting kit for your specific actuator type.
• Q: Does the unit require a separate power supply for the feedback module?
  A: The analog feedback is a two-wire loop-powered module, typically powered by your DCS/PLC analog input card.

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Contact Information Inquiries: info@oiltechcontrols.com | +86 158 8020 0923 (WhatsApp)

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