Description
Product Overview
The ABB V18345-1027420001 is an electro-pneumatic positioner for industrial valves. It converts a 4-20 mA input signal into a pneumatic output. This device controls single or double acting actuators with high precision. The aluminum case meets IP65 (NEMA 4X) standards for harsh environments.
Key Features at a Glance
4-20 mA two-wire input with split range capability
Double acting output with fail-safe position on power loss
IP65 aluminum housing protects against dust and water jets
GOST Russia Ex proof for hazardous areas (EEx ib II C T6)
Works with linear or rotary actuators
Adjustable travel time from 0 to 200 seconds per direction
Technical Specifications
• General Information
Brand: ABB
Model: V18345-1027420001
Type: Electro-Pneumatic Positioner
Weight: 1.70 kg
Dimensions (D x W x H): 16.85 cm x 9.29 cm x 8.95 cm
• Input Specifications
Signal type: Two-wire, 4-20 mA nominal range
Maximum current: 25 mA at 30 V
Minimum starting current: 3.8 mA
Load voltage at 20 mA: 8.7 V DC (standard) or 9.7 V (intrinsically safe)
Impedance at 20 mA: 435 ohms (standard) or 485 ohms (intrinsically safe)
Digital input: 24 V DC control voltage (12-30 V range)
Logical thresholds: 0-10 V = “0”, 12-30 V = “1”
• Output Specifications
Pressure range: 0 to 6 bar (0 to 90 psi)
Air capacity at 1.4 bar supply: 5.0 kg/h (3.9 Nm³/h or 2.3 scfm)
Air capacity at 6 bar supply: 13 kg/h (10 Nm³/h or 6.0 scfm)
Output function: Single or double acting actuators
Fail-safe behavior: Air vents or actuator blocks on power failure
• Travel and Configuration
Angle of rotation: 25-120° (rotary) or 25-60° (linear)
Travel limits: Freely configurable from 0 to 100% of total travel
Minimum configurable range: 20% of total travel
Travel time adjustment: 0 to 200 seconds per direction
Positioning time limit: 0 to 200 seconds (monitoring parameter)
Environmental Protection
Case material: Varnished aluminum
Protection rating: IP65 (NEMA 4X)
Explosion protection: GOST Russia Ex II 2 G EEx ib II C T6
Cable entry thread: 1/2-14 NPT
Air pipe thread: 1/4-18 NPT
Installation Guidelines
First, mount the positioner on a linear actuator per DIN/IEC 534 or NAMUR. Alternatively, attach it to a rotary actuator following VDI/VDE 3845. Next, connect the 4-20 mA input via the LKS adapter plug. Then, connect air pipes using 1/4-18 NPT threads. Finally, run cables through the 1/2-14 NPT entry for a sealed connection.
Debugging and Maintenance
The digital output follows NAMUR DIN 19234 standards. A current below 1.0 mA means logical “0”. A current above 2.0 mA means logical “1”. You can configure the effective direction as normally “0” or “1”. Use the positioning time limit parameter to monitor control deviations. The device will alert you if deviation stays outside the tolerance band too long.
Compatibility
This positioner works with most single or double acting pneumatic actuators. It supports linear actuators from ABB and other major brands. For rotary actuators, it handles angles up to 120° (or 270° on request). You can also pair it with 3300 XL 11 mm Proximity Probes for valve position feedback in critical turbine applications.
Typical Applications
Chemical plant control valves requiring explosion-proof gear
Oil and gas pipeline regulators with fail-safe needs
Power plant steam turbine bypass valves
Water treatment facility actuator positioning
Any double acting pneumatic valve with 4-20 mA control
Package Contents
ABB V18345-1027420001 positioner unit
Aluminum IP65 case (pre-assembled)
LKS adapter connector plug
Does not include analog or digital position feedback modules
Warranty and Shipping
We offer a 12-month warranty against manufacturing defects. We ship worldwide via FedEx, UPS, or DHL with tracking numbers.
Frequently Asked Questions (FAQ)
Q: What is the main difference between single and double acting?
A: Single acting uses one air line and a spring return. Double acting uses two air lines for push-pull force. This unit supports both.
Q: Do I need a separate booster for high flow?
A: Standard flow is 13 kg/h at 6 bar. Request the booster option for higher air capacity.
Q: How do I set the travel limits?
A: Use the internal configuration. Set any min and max within 0-100% of total travel. The minimum range must exceed 20%.
Q: Is this unit safe for explosive gas areas?
A: Yes. The GOST Russia EEx ib II C T6 rating covers Zone 2 gas hazards.
Q: What happens during a power failure?
A: The positioner vents air or blocks the actuator. This holds the valve in a safe position.
Q: Can I add position feedback later?
A: Yes. Order option modules for analog or digital feedback separately.
Q: Why choose the V18345 over cheaper brands?
A: ABB offers better long-term stability. You also get real NAMUR digital I/O and full IP65 sealing.
Purchasing Guidance
First, confirm your actuator type: linear or rotary. Second, check your air supply pressure. The unit works best at 1.4 to 6 bar. Third, verify your hazard zone requirements. This unit suits Ex II 2 G areas. Fourth, decide if you need position feedback. Order the option modules now to avoid field wiring later. Finally, order a spare unit for critical lines. Downtime costs more than a backup positioner.
Contact Information
For inquiries, please reach out via WhatsApp:
+86 158 8020 0923
Copyright © 2026 PLCDCS HUB Limited. All rights reserved.
Original Source: https://plcdcshub.com/
Partners:
Powergear X Automation Limited
Oiltech Controls Limited
0.0 Average Rating Rated (0 Reviews)