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ABB TZIDC V18345 | Intelligent HART Valve Positioner 4–20mA, NAMUR Mount, 1/2" NPT — Single / Double Acting

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"ACH has proven to be a reliable partner. Their products are genuine and high-quality, with competitive prices and on-time delivery. We trust them as our long-term supplier in automation."

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ABB TZIDC V18345 | Intelligent HART Valve Positioner 4–20mA, NAMUR Mount, 1/2" NPT — Single / Double Acting

ABB TZIDC V18345 | Intelligent HART Valve Positioner 4–20mA, NAMUR Mount, 1/2" NPT — Single / Double Acting
ABB TZIDC V18345 | Intelligent HART Valve Positioner 4–20mA, NAMUR Mount, 1/2" NPT — Single / Double Acting ABB TZIDC V18345 | Intelligent HART Valve Positioner 4–20mA, NAMUR Mount, 1/2" NPT — Single / Double Acting

Large Image :  ABB TZIDC V18345 | Intelligent HART Valve Positioner 4–20mA, NAMUR Mount, 1/2" NPT — Single / Double Acting Get Best Price

Product Details:
Place of Origin: DE
Brand Name: ABB
Certification: ATEX
Model Number: TZIDC
Document: ACH-AB-P+F-E+H-IFM-ASCO-YOK...WA.pdf
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: Negotiable
Packaging Details: carton
Delivery Time: Negotiable
Payment Terms: T/T,XT,ALIPAY
Supply Ability: 100pcs per month
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Detailed Product Description
Power Supply: 1 Ambient Temperature: -
Electrical Rating: G Certifications: S
Highlight:

ABB TZIDC HART valve positioner

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NAMUR mount valve positioner

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4-20mA double acting positioner

ABB TZIDC V18345 | Intelligent HART Valve Positioner 4–20mA, NAMUR Mount, 1/2" NPT — Single / Double Acting
ABB TZIDC (V18345 series) intelligent electro-pneumatic valve positioner with HART protocol, 4–20 mA input, single/double-acting, NAMUR mount, IP66, auto-calibration. Compatible with linear & rotary pneumatic actuators.

Product Overview

The ABB TZIDC (Type V18345 series)​ is a microprocessor-based intelligent electro-pneumatic positioner​ for mounting on pneumatic linear or rotary actuators. It accepts a standard 4–20 mA DC (two-wire) setpoint signal​ with HART 5/7 communication​ superimposed, and converts it to a pneumatic output (single-acting: 1 output; double-acting: 2 outputs) to drive the valve to the commanded position. The positioner features fully automatic calibration (auto-zero, auto-travel, auto-PID tuning)​ via three pushbuttons and a local LCD, NAMUR / VDI-VDE 3845 mounting, and IP65/IP66 aluminum housing. Electrical connection is 1/2"-14 NPT​ with 1/4"-18 NPT pneumatic ports. Typical reference models include V18345-1010121001​ (single-acting, fail-safe, 4–20 mA feedback) and V18345-1010421001​ (double-acting, fail-safe, 4–20 mA feedback). Suitable for chemical, oil & gas, power, water treatment, and pharma process control loops.

Technical Specifications (Electrical & Signal)

Parameter
Specification
Series / Type​
ABB TZIDC — V18345 Series Intelligent Positioner
Input Signal​
4–20 mA DC, two-wire (loop-powered), load ≤ 485 Ω
Communication Protocol​
HART 5 / HART 7​ (FSK modulated on 4–20 mA loop)
Position Feedback (Optional)​
4–20 mA DC​ analog (two-wire), or digital switch contact
Supply / Loop Power​
Powered from 4–20 mA signal loop (nom. 7.5–30 V DC across terminals)
Digital Inputs​
1 × for remote open/close or disable (0–5 V / 11–30 V logic)
Digital Outputs​
1 × NAMUR-type limit switch output (optional)
Accuracy / Linearity​
±0.5 % FS​ (typical), hysteresis ≤ 0.1 % FS
Dead Band (Adjustable)​
0.1 – 10 % of span

Technical Specifications (Pneumatic & Mechanical)

Parameter
Specification
Actuator Type​
Single-Acting (1 output + spring return)​ or Double-Acting (2 outputs)​ — per model selected
Supply Air Pressure​
1.4 – 6.0 bar (20 – 90 psi)​ — filtered, oil-free (ISO 8573-1 Class 3)
Output Pressure​
0 – Supply Pressure (linear)
Air Consumption (Steady State)​
≤ 0.03 kg/h (≈ 0.015 scfm) @ 1.4 bar supply
Travel Range​
Linear: 10–100 mm (std), extendable; Rotary: up to 90° (std), up to 270° with extended sensor
Mounting Standard​
NAMUR (VDI/VDE 3845)​ for rotary actuators; direct link for linear actuators (DIN/IEC 534)
Electrical Connection​
1/2"-14 NPT​ (threaded) — cable gland typically supplied
Pneumatic Connection​
1/4"-18 NPT​ (supply & output) — also available with G 1/4"
Housing / Protection​
Die-cast Aluminum, epoxy painted — IP65 / IP66 (NEMA 4X)​
Ambient Temperature​
-40 … +85 °C​ (some variants -25 … +70 °C)
Vibration Resistance​
10 g (10–150 Hz)​ per IEC 60068-2-6
Weight (Approx.)​
1.7 kg
Safety / SIL​
SIL 2 capable (per IEC 61508, with appropriate configuration)
Hazardous Area Approval​
Non-Ex (std.), or Ex ia / Ex d / Ex nA — per suffix

Key Features

  • One-Button Auto-Calibration:​ Full auto-tuning of zero, span, direction, and PID in < 3 min — drastically reduces commissioning time.
  • HART Communication:​ Remote configuration, diagnostics, and valve signature testing via handheld or DCS — no separate comms card needed.
  • Universal Actuator Fit:​ NAMUR rotary mount + linear link kit — works with virtually all major pneumatic actuator brands.
  • Adaptive Control Algorithm:​ Microprocessor continuously optimizes gain to suit valve/actuator dynamics — stable on both fast small valves and large sluggish ones.
  • Low Air Consumption & Self-Diagnostics:​ < 0.03 kg/h steady-state air use; built-in checks for valve sticking, packing friction, air supply loss, and sensor drift.

Typical Applications

  • Process Control Valves:​ Flow, pressure, level, and temperature control loops in refineries, petrochemical, and fine chemical plants.
  • Power Generation:​ Boiler feedwater, steam extraction, and desuperheating station control valves.
  • Water & Wastewater:​ Chlorine dosing, pH control, and sludge line modulating valves.
  • Pharmaceutical & Food:​ CIP/SIP skid valve control where traceability and HART diagnostics are required.
Typical representative model codes: V18345-1010121001​ = Single-acting, fail-safe (go to spring position on signal loss), non-Ex, 4–20 mA feedback, 1/2" NPT / 1/4" NPT — V18345-1010421001​ = Double-acting same options. For double-acting with fail-freeze (3-way protection module) or Ex d/ia variants, adjust the 4th & 5th digit groups accordingly (e.g. V18345-2010421001 for double-acting Ex d with mechanical indicator).

ABB TZIDC V18345 | Intelligent HART Valve Positioner 4–20mA, NAMUR Mount, 1/2" NPT — Single / Double Acting 0

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL  to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

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Frequently Ask & Questions
Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

Are the Products Genuine OEM Units?

Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.

Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

S
Siti Aisyah
Malaysia Jun 21.2026
Helpful (1)
This resolver interface card kit works perfectly with ACS350/510/550 drives for precise motor position feedback.
O
Omar Al-Saeed
United Arab Emirates Jun 13.2026
Helpful (1)
This AX25 contactor works steadily with stable 230V coil and reliable 1NO auxiliary contact for industrial circuits.
F
Farhan
Pakistan Apr 22.2026
Helpful (1)
ABB TU551-CS31 terminal works reliably for AC500 PLC systems.
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