ABB V18345-1010551001 Valve Positioner | TZIDC-120 Intelligent Positioner

Product Snapshot

• ABB TZIDC-120 intelligent valve positioner focuses on accuracy, stability, and long service life.
• Model V18345-1010551001 supports double acting actuators with fail freeze safety.
• This unit fits demanding flow control applications in oil, gas, chemical, and power industries.

Configuration Structure Overview

• Base Model
  • TZIDC-120 Series → Intelligent control platform
  • Type Code: V18345 → Digital configurable positioner
• Mechanical Design
  • Housing → Aluminum, varnished
  • Protection → IP65 / NEMA 4X
  • Mounting → DIN/IEC 534, NAMUR, VDI/VDE 3845
• Signal and Communication
  • Input → 4–20 mA, two-wire technology
  • Connector → LKS adapter compatible

Electrical and Control Performance

• Nominal signal range supports flexible split configuration from 20% to 100%.
• Minimum operating current starts at 3.8 mA for reliable initialization.
• Input impedance reaches 435 ohms at 20 mA without explosion protection.
• Digital input accepts 12–30 V DC for external logic control signals.

Pneumatic Output Capabilities

• Output pressure range spans from 0 to 6 bar for wide actuator compatibility.
• Air delivery reaches 10 Nm³/h at 6 bar supply pressure.
• Double acting fail freeze design blocks air to hold valve position on power loss.

Position Feedback and Monitoring

• Integrated analog feedback module outputs continuous 4–20 mA position signal.
• Feedback improves loop accuracy and simplifies remote diagnostics.
• Digital output follows NAMUR standards for controller compatibility.

Connection and Interface Details

• Electrical cable entry uses M20 x 1.5 thread for secure wiring.
• Pneumatic ports use 1/4-18 NPT for standard air connections.

Reliability and Environmental Resistance

• Robust aluminum housing resists vibration and harsh plant conditions.
• IP65 sealing protects against dust and water spray.
• Stable electronics reduce signal drift over long operating cycles.

Packaging, Warranty, and Shipping

• Package includes one ABB valve positioner with standard mounting hardware.
• Warranty period covers 12 months under normal industrial use.
• Shipping options include FedEx, UPS, and DHL express services.

Professional FAQ

• How does double acting fail freeze help plant safety?
  • It locks the actuator position and avoids sudden valve movement during power loss.
• Is this positioner suitable for control valve upgrades?
  • Yes, the 4–20 mA input works well with existing control systems.
• What improves control accuracy in real applications?
  • Continuous analog feedback helps operators tune loops more precisely.
• Can this unit handle frequent valve movement?
  • The design supports high cycle operation with stable air flow control.
• Does housing material matter in harsh plants?
  • Aluminum housing improves heat dissipation and corrosion resistance.

Contact Information

• Email:
  sales@powergearx.com
• WhatsApp:
  +86 18030005825

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