Product details
Product Overview: ABB V18345-1021120001 TZIDC
ABB V18345-1021120001 TZIDC valve positioner. Compact build. Stable output. Simple setup. Supports 4-20mA and HART. Designed for process plants needing reliable control.
Model Breakdown (Tree Structure)
V18345-1021120001 ├─ V18345 : TZIDC Intelligent Positioner ├─ 10 : Aluminum IP65 / NEMA 4X Case ├─ 2 : 4-20mA + HART (LKS adapter + FSK module) ├─ 1 : FM/CSA Explosion Protection ├─ 1 : Double Acting / Fail Freeze Output ├─ 2 : Electrical 1/2-14 NPT; Air 1/4-18 NPT ├─ 0 : No Analog Feedback ├─ 00 : No Mechanical Feedback └─ 1 : Standard Design
Key Specifications
- Power signal: 4-20mA HART communication
- Fail-safe action: Double acting / fail freeze
- Protection class: IP65 / NEMA 4X
- Ambient use: -40°C to +85°C operation
- Humidity: 95% operational, condensation allowed
- Terminal capacity: Up to 2.5 mm² analog signal lines
- Cable entry: 1/2-14 NPT or M20x1.5
- Pneumatic port: G 1/4 or 1/4-18 NPT
- Surface coating: Epoxy resin varnish, black RAL 9005
- Mounting: Linear or rotary actuators supported
Additional Technical Values
- Max air supply pressure: 6 bar nominal
- Signal accuracy: ±0.5% FS typical
- Stroke capability: 6-200 mm (application dependent)
- Response time: ≤ 0.3s typical with tuned parameters
- Control algorithm: Digital PID auto-tuning core
Logistics & Warranty
- Warranty: 12 Months standard replacement coverage
- Express shipping: FedEx / UPS / DHL
- Condition: Fully tested, cleaned, and sealed before dispatch
Contact & Sales Support
Frequently Asked Questions
Q1: How does this unit handle signal noise?
A: The internal digital filter reduces field interference. Users often tune damping for better valve response.
Q2: Can it be mounted on older actuator frames?
A: Yes. Many maintenance teams adapt via bracket kits. Previous site retrofits show quick alignment and stable seating.
Q3: Does the fail freeze action work in fast trip events?
A: Yes. The output holds position. Plants using compressor or boiler loops report stable freeze during air failures.
Q4: Can parameters be changed without full shutdown?
A: In many cases yes. Field engineers often adjust trim, range, and stroke live when safety permits.
Q5: Recommended supply pressure for stable control?
A: Many users run 4.5-5.5 bar for smoother final element motion. Results vary by valve load and media conditions.
Request specs or drawings via email.
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