ABB V18345-1010521001 – Electro-Pneumatic Positioner | TZIDC Series
Engineering Background
The ABB TZIDC series represents ABB’s flagship intelligent valve positioner platform, engineered for precision control in demanding process environments. The V18345-1010521001 is a 2-wire, 4–20 mA electro-pneumatic positioner designed to mount directly on linear and rotary actuators per NAMUR IEC 60534-6 standards. It delivers tight positioning accuracy with minimal air consumption, making it the preferred choice for critical control loops in oil & gas, chemical, and power generation facilities.
Product Positioning
This unit is purpose-built for procurement engineers who require a drop-in replacement or new installation on single-acting pneumatic actuators. It supports HART communication for remote diagnostics and integrates seamlessly with ABB’s Asset Vision Basic software for predictive maintenance workflows. Konmask.com supplies this positioner as a verified OEM unit with full traceability documentation available upon request.
Complete Technical Specifications
- Part Number / SKU: V18345-1010521001
- Series / Platform: ABB TZIDC
- Type: Electro-Pneumatic Positioner (Single-Acting)
- Input Signal: 4–20 mA (2-wire)
- Communication Protocol: HART (optional)
- Supply Pressure: 1.4–7 bar (20–100 psi)
- Output Pressure: 0.2–6 bar (3–87 psi)
- Air Consumption (steady state): ≤ 0.07 Nm³/h
- Actuator Compatibility: Linear & rotary (NAMUR IEC 60534-6 / VDI/VDE 3845)
- Stroke Range (linear): 5–130 mm
- Rotation Range (rotary): 30°–100°
- Positioning Accuracy: ≤ 0.5% of span
- Hysteresis: ≤ 0.3%
- Ambient Temperature: −40°C to +80°C
- Enclosure Rating: IP66 / NEMA 4X
- Explosion Protection: ATEX II 2G Ex ia IIC T6 (intrinsically safe)
- Housing Material: Polyamide (PA) with stainless steel hardware
- Electrical Connection: M20 × 1.5 cable entry
- Weight: Approx. 1.7 kg
- Country of Origin: Germany
- Manufacturer: ABB Automation Products GmbH
Proven Application Environments
- Oil & Gas: Wellhead control valves, separator pressure control, pipeline isolation
- Chemical & Petrochemical: Reactor feed control, distillation column pressure loops
- Power Generation: Turbine bypass valves, boiler feedwater control
- Pulp & Paper: Digester pressure regulation, bleach plant flow control
- Water & Wastewater: Pump discharge pressure control, filter backwash valves
- Pharmaceutical: Clean-room compatible installations with stainless hardware
Engineering Advantages
- Auto-calibration: Single-button EXPERT+ auto-setup eliminates manual span/zero adjustment
- Low air consumption: Piezo pilot valve technology reduces compressed air costs significantly
- Tight accuracy: ≤ 0.5% positioning accuracy supports high-performance control loops
- Wide temperature range: −40°C to +80°C suits arctic and tropical installations
- HART diagnostics: Partial stroke testing (PST) and valve signature analysis without process interruption
- Modular design: Field-replaceable pneumatic module reduces maintenance downtime
- Dual-scale indicator: Local position feedback visible without instrumentation tools
System Architecture & Signal Flow
The V18345-1010521001 receives a 4–20 mA setpoint signal from the DCS/PLC output card. The internal microprocessor compares the setpoint against the position feedback from the integrated Hall-effect sensor on the actuator stem. The piezo-electric pilot valve modulates supply air to the actuator cylinder, driving the valve to the commanded position. HART frames are superimposed on the 4–20 mA loop for bidirectional digital communication with asset management systems. The positioner’s fail-safe action (fail-close or fail-open) is determined by actuator spring configuration, not the positioner itself.
Compatible ABB Actuators: 2SY5, 3SY5 series pneumatic actuators; also compatible with third-party NAMUR-mount actuators from Rotork, Flowserve, Emerson, and Metso.
Sourcing & Quality Verification
- ✅ OEM Origin: Sourced directly from ABB-authorized distribution channels
- ✅ Traceability: Serial number verification available; factory test certificates on request
- ✅ Condition: New-in-box (NIB) or surplus tested units clearly labeled at time of quotation
- ✅ Packaging: Original ABB packaging with anti-static protection and desiccant
- ✅ Inspection: Pre-shipment visual and functional inspection by Konmask technical team
- ✅ Documentation: EU Declaration of Conformity, ATEX certificate, calibration sheet available
Procurement Process
- Submit RFQ: Contact support@konmask.com with your required quantity and delivery timeline
- Receive Quotation: Formal quotation with unit price, lead time, and shipping options within 24 hours
- Order Confirmation: Purchase order accepted via email; proforma invoice issued for wire transfer or credit card payment
- Quality Check & Dispatch: Pre-shipment inspection completed; tracking number provided within 1–2 business days
- Delivery: DHL Express / FedEx International Priority; typical transit 3–7 business days worldwide
- After-Sales Support: 12-month warranty on verified OEM units; technical support via email and WhatsApp
Technical FAQ
Q: Is the V18345-1010521001 compatible with double-acting actuators?
A: No. This specific configuration (suffix -1010521001) is single-acting. For double-acting actuators, the V18345-1020521001 variant is required.
Q: Can this positioner be used in SIL-rated safety loops?
A: The TZIDC platform supports SIL 2 capability (HFT=0) per IEC 61508 when used with the appropriate safety-rated actuator and valve assembly. Consult the ABB SIL Safety Manual (document 3KXL000033R4101) for full requirements.
Q: What is the minimum supply pressure required?
A: Minimum supply pressure is 1.4 bar (20 psi). Supply pressure must exceed the maximum actuator operating pressure by at least 0.3 bar.
Q: Does this unit include HART capability?
A: Yes. The -1010521001 suffix includes HART 5/6/7 communication as standard. A HART modem (e.g., Emerson 475 Field Communicator) or ABB Asset Vision Basic software is required for digital access.
Q: What is the lead time for this part?
A: In-stock units ship within 1–2 business days. For out-of-stock situations, typical lead time from ABB factory is 6–10 weeks. Contact us for current stock status.
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