V18345-1010421001 ABB TZIDC Electro-Pneumatic Positioner
The V18345-1010421001 is a digitally configurable positioner engineered for high-precision control of pneumatic actuators. This specific TZIDC model provides a double-acting “fail-safe” pneumatic output, ensuring the actuator exhausts to a safe state upon electrical power loss. Encased in a stove-hardened, varnished aluminum housing, the V18345-1010421001 withstands harsh industrial climates while maintaining an ultra-low air consumption rate. Oiltech Controls Limited provides this intelligent solution for mission-critical valve modulation.
Model Configuration & Suffix Breakdown
- V18345 — Series: TZIDC Intelligent Positioner with LCD and local operator panel
- ∟ 1 — Case: Varnished aluminum, IP 65 protection for linear/rotary actuators
- ∟ 0 — Mechanical Kit: Standard configuration without additional kits
- ∟ 1 — Communication: 2-wire 4…20 mA input with LKS adapter plug
- ∟ 0 — Explosion Protection: Standard non-explosion proof version
- ∟ 4 — Output: Double-acting, Fail-Safe pneumatic logic
- ∟ 2 — Connections: 1/2-14 NPT electrical / 1/4-18 NPT pneumatic
- ∟ 1 — Options: Plug-in module for 4…20 mA analog feedback
- ∟ 0 — Mechanical Feedback: Always 0 (Standard)
- ∟ 0 — Reserve: Factory standard 0
- ∟ 1 — Design: Standard black RAL 9005 case / Pantone 420 cover
Technical Performance Matrix
- Input Signal: 4 … 20 mA nominal range (Min 3.4 mA / Max 25 mA)
- Position Feedback: Integrated 4 … 20 mA two-wire analog output module
- Supply Pressure: 1.4 … 6 bar (20 … 90 psi) range
- Air Consumption: < 0.03 kg/h (0.015 scfm) independent of supply pressure
- Digital Input: Control voltage 11 … 30 V DC for logical state “1”
- Digital Output: 5 … 11 V DC supply (Control circuit to DIN 19234/NAMUR)
- Housing Protection: Aluminum class IP 65 / NEMA 4X with epoxy resin varnish
- Weight: 1.7 Kg net weight excluding mounting hardware
- Temperature Limits: Standard range -40 °C to 85 °C for T4 classification
Oiltech Controls Limited’s Insight & Application
- Diagnostic Ability: The internal processor tracks stroke counters and error messages for predictive maintenance.
- Double Acting Advantage: Essential for large cylinder actuators requiring active air pressure to both open and close.
- Fail-Safe Logic: Provides immediate venting of air from the actuator during power failure for emergency shutdown.
- Target Equipment: Perfectly suited for segmented ball valves, high-torque dampers, and chemical dosing valves.
- Installation Versatility: Ready for integral mounting or external attachment to linear and rotary pneumatic units.
- Engineering Support: Contact our team at info@oiltechcontrols.com for calibration parameters.
Logistics and Quality Assurance
- Standard Warranty: Comprehensive 12-month quality guarantee on all mechanical and electronic parts.
- Global Shipping: Rapid express delivery via FedEx, UPS, and DHL partners.
- Order Fulfillment: We guarantee warehouse dispatch within 24 to 28 hours of payment.
- Instant Inquiries: Reach our sales engineers via WhatsApp: +86 158 8020 0923.
Professional FAQ & Procurement Guide
- Does the V18345-1010421001 require a separate power supply for the LCD?
- No, the positioner is loop-powered directly from the 4-20mA control signal.
- Can I manually operate the valve using the positioner interface?
- Yes, the local operator panel allows for manual mode switching to override the control signal.
- What is the primary benefit of the low air consumption feature?
- It significantly reduces operational costs and compressor wear in plants with hundreds of positioners.
- Experience Tip: Why should I choose the NPT thread over G thread for this unit?
- Choose NPT (Code 2) if your plant follows North American piping standards to ensure leak-free seals.
- Selection Advice: Is this model suitable for high-vibration piping systems?
- The TZIDC digital technology is highly vibration-resistant compared to traditional mechanical positioners.
Contact Information Inquiries: info@oiltechcontrols.com, +86 158 8020 0923
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Original Source: https://www.oiltechcontrols.com/
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