V18345-1020521001 ABB Positioner | Double Acting

Description

Product Description

• ABB V18345-1020521001 is a TZIDC electro-pneumatic positioner.
• It controls valve stroke based on a 4…20 mA input signal.
• This device works with linear or rotary actuators.
• Housing is aluminum, varnished, IP65 (NEMA 4X).
• It supports HART communication via FSK module.
• Safe position on power failure: fail freeze.
• Output type: double acting.
• Analog position feedback: 4…20 mA plug-in module.
• Weight: 1.7 kg.

Key Technical Data

• Brand: ABB
• Model: V18345-1020521001
• Series: TZIDC
• Input signal: 4…20 mA, two-wire
• Communication: HART (FSK module)
• Output signal pressure range: increasing or decreasing 0…100 %
• Action (signal to position): direct (4…20 mA = 0…100 %) or reverse (20…4 mA = 0…100 %)
• Characteristic curve: linear, equal percentage 1:25, 1:50, 25:1, 50:1, or free configurable with 20 points
• Characteristic deviation: ≤ 0.5 %
• Tolerance band: 0.3…10 % adjustable
• Dead band: 0.1…10 % adjustable
• Resolution (A/D): > 4000 steps
• Sample rate: 20 msec
• Temperature influence: ≤ 0.5 % per 10 °C change
• Vibration resistance: ≤ ± 1 % up to 10 g and 80 Hz
• Seismic standard: meets DIN/IEC 68-3-3 Class III (strong earthquakes)
• Mounting orientation effect: none
• Case material: aluminum, varnished
• Protection class: IP65 (NEMA 4X)
• Electrical connection: cable, thread 1/2-14 NPT
• Air pipe connection: thread 1/4-18 NPT
• Explosion protection: without (standard version)
• Design code: standard varnish

Mounting & Installation

• Mounts on linear actuators per DIN/IEC 534 / NAMUR.
• Mounts on rotary actuators per VDI/VDE 3845.
• Use 1/2-14 NPT cable entries for wiring.
• Use 1/4-18 NPT ports for air pipes.
• No effect from mounting orientation.
• Ensure clean, dry instrument air supply.

Calibration & Maintenance

• Easy auto-calibration via internal software.
• Configurable with 20 reference points.
• Low dead band reduces wear on moving parts.
• No special tools needed for routine checks.
• Robust aluminum case reduces maintenance frequency.

Compatibility

• Works with standard 4…20 mA control systems.
• Supports HART communicators and asset management software.
• Compatible with pneumatic valve actuators (double acting).
• Match with 11 mm Proximity Probes for position monitoring: https://www.ubestplc.com/collections/3300-xl-11-mm-proximity-probes-metric

Certifications

• IP65 (NEMA 4X) for dust and water jets.
• Seismic certified per DIN/IEC 68-3-3 Class III.
• Meets industrial vibration standards up to 10 g.

Package Contents

• 1 x ABB V18345-1020521001 TZIDC positioner
• 1 x Analog feedback module (4…20 mA)
• Mounting bracket kit for linear or rotary actuator (standard)
• Cable gland adapters (1/2-14 NPT)
• Quick start manual

Warranty

• 12 months warranty from shipment date.
• Covers manufacturing defects and material faults.
• Does not cover misuse or improper installation.

Shipping Methods

• We ship via FedEx, UPS, and DHL.
• Tracking number provided within 24 hours.
• Global delivery available.

Typical Applications

• Oil and gas valve control.
• Chemical plant flow regulation.
• Power plant steam valve positioning.
• Water treatment modulating valves.
• Pulp and paper industry actuators.

Diagnostic Capabilities

• HART communication enables remote diagnostics.
• Monitors travel deviation and valve health.
• Alerts on low air supply or stuck valve.
• Supports partial stroke testing.

FAQ

• What is fail freeze?
• Valve stays at last position when electrical power fails.
• Can I use this positioner without HART?
• Yes, it works as a standard 4…20 mA positioner.
• What air pressure does it need?
• Supply pressure typically 1.4 to 6 bar (20 to 90 psi).
• Is the analog feedback module pre-installed?
• Yes, this model includes the plug-in 4…20 mA feedback module.
• How do I reverse the action?
• Change setting via internal menu or HART command.
• Which thread standard does it use?
• Electrical: 1/2-14 NPT. Air: 1/4-18 NPT.
• Experience: Does it work well in cold climates?
• Yes, temperature influence is only 0.5% per 10°C.
• Experience: How long does calibration take?
• Auto-calibration finishes within 2 minutes.
• Buying guide: Choose fail freeze for critical processes.
• Use fail freeze when valve must hold position during power loss.
• Buying guide: Need explosion protection?
• This model has no Ex protection. Order other ABB variants.

Contact & Support

• For inquiries, contact us on WhatsApp: +86 158 8020 0923
• Technical support available Monday to Friday.

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