Product Overview
The ABB V18345-1027420001 is a precision electro-pneumatic positioner engineered for demanding industrial automation environments. This model combines robust aluminum construction with IP 65 (NEMA 4X) protection, making it suitable for linear actuators per DIN/IEC 534/NAMUR and rotary actuators per VDI/VDE 3845. With a 4...20 mA two-wire input and GOST Russia Ex II 2 G EEx ib II C T6 explosion protection, the V18345-1027420001 delivers reliable, fail-safe positioning even in hazardous areas.
Technical Specifications
| Parameter |
Value |
| Product Type |
Electro-Pneumatic Positioner |
| Case / Mounting |
Aluminium, varnished, IP 65 (NEMA 4X); for linear actuators acc. to DIN/IEC 534/NAMUR or rotary actuators acc. to VDI/VDE 3845 |
| Input / Communication |
4...20 mA, two-wire with connector plug for LKS adapter |
| Explosion Protection |
GOST Russia Ex II 2 G EEx ib II C T6 |
| Output / Safe Position |
Double acting, fail-safe |
| Connections |
Cable: Thread 1/2-14 NPT; Air pipe: Thread 1/4-18 NPT |
| Dimensions (D x W x H) |
16.85 cm x 9.29 cm x 8.95 cm |
| Weight |
1.70 kg |
| Input Signal Range |
Nominal 4...20 mA; split range 20%–100%; max 25 mA / 30 V; min 3.4 mA (without analog pos. feedback) |
| Load Voltage at 20 mA |
8.7 V DC (without explosion protection); 9.7 V DC (intrinsically safe) |
| Impedance at 20 mA |
435 ohms (without explosion protection); 485 ohms (intrinsically safe) |
| Digital Input |
Control voltage 24 V DC (12...30 V DC); logical '0' 0...10 V DC; logical '1' 12...30 V DC; max current 4 mA |
| Digital Output (NAMUR) |
Supply 5...11 V DC; logical '0' < 1.0 mA; logical '1' > 2.0 mA; configurable direction |
| Output Range |
0...6 bar (0...90 psi) |
| Air Capacity |
At 1.4 bar: 5.0 kg/h (3.9 Nm3/h, 2.3 scfm); at 6 bar: 13 kg/h (10 Nm3/h, 6.0 scfm) with booster on request |
| Angle of Rotation |
25...120° (rotary, optionally 270°); 25...60° (linear) |
| Travel Time Prolongation |
0...200 s, separately per direction |
Key Features & Benefits
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Reliable fail-safe operation: In case of electrical power failure, the actuator is vented or blocked, ensuring a safe plant state.
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Flexible mounting: Compatible with linear and rotary actuators, with integral mounting options.
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Explosion protection: GOST Ex approval (EEx ib IIC T6) allows installation in hazardous areas.
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Precise control: Configurable travel limits and positioning time limits provide accurate valve positioning.
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Split range capability: Supports split range configuration between 20% and 100% of nominal range.
Industry Applications
The ABB V18345-1027420001 is ideal for process industries where precise valve control and safety are critical. Common applications include:
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Oil & Gas: Regulating flow in pipelines and separators, especially in explosive atmospheres.
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Chemical Processing: Controlling corrosive media with fail-safe actuation.
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Power Generation: Managing steam and cooling water valves with high reliability.
Installation & Setup Guidance
When installing the V18345-1027420001, ensure the mounting bracket matches the actuator standard (NAMUR or VDI/VDE 3845). Connect the air supply via the 1/4-18 NPT port and electrical wiring through the 1/2-14 NPT cable entry. Configure the input signal range (4...20 mA) and split range settings according to your control system. For double-acting actuators, verify that the air venting/blocking behavior aligns with your fail-safe requirements.
Maintenance & Reliability
The aluminum case and IP 65 rating protect the positioner from dust and water ingress, reducing maintenance frequency. Periodically inspect the air connections for leaks and verify the electrical connections remain secure. Calibration checks every 6-12 months help maintain accuracy, especially in high-vibration environments. The robust design minimizes downtime, ensuring long-term operational efficiency.
Selection Guide & Purchasing Advice
Before purchasing the ABB V18345-1027420001, verify your actuator's mounting interface and air supply pressure. Confirm whether you need the optional analog or digital position feedback modules (this unit comes without them). For hazardous area installations, check that the GOST Ex rating matches your zone classification. PLC Source PRO offers this genuine ABB V18345-1027420001 positioner with fast shipping and quality assurance.