Product Introduction
When precise valve positioning is critical in hazardous environments, the ABB V18345-1017121001 TZIDC electro-pneumatic positioner delivers reliable performance. This intelligent, configurable device features an indicator and operator panel, making setup straightforward. Designed for demanding industrial applications, it ensures accurate control of linear actuators per DIN/IEC 534/NAMUR and rotary actuators per VDI/VDE 3845.
Technical Specifications Breakdown
The V18345-1017121001 operates with a 4...20 mA two-wire input, ensuring compatibility with standard control systems. Its ATEX Ex II 2 G EEx ia IIC T6 approval allows safe use in explosive atmospheres. The housing is made of varnished aluminum with IP 65 (NEMA 4X) protection, resisting dust and water jets. Single-acting fail-safe operation with fail freeze maintains the last position during power loss. Pneumatic connections use 1/4-18 NPT threads, while cable entry is 1/2-14 NPT. Supply pressure ranges from 1.4 to 6 bar (20 to 90 psi), with air consumption below 0.03 kg/h (0.015 scfm). The unit weighs 1.7 kg.
Industry Applications
This positioner excels in oil and gas, chemical processing, and power generation where hazardous area compliance is mandatory. For example, in a chemical plant handling flammable solvents, the ATEX certification ensures safe operation. The fail freeze output prevents uncontrolled valve movement during electrical failure, protecting processes. Its aluminum housing withstands corrosive environments, reducing replacement frequency.
Installation & Setup Guidance
Mount the V18345-1017121001 directly on linear actuators using NAMUR brackets or on rotary actuators per VDI/VDE 3845. Connect the 4-20 mA signal via the two-wire input using the LKS adapter plug. Ensure pneumatic lines use 1/4-18 NPT fittings and supply pressure stays within 1.4 to 6 bar. Configure the positioner using the onboard operator panel for stroke, direction, and fail-safe settings. Verify IP65 sealing by tightening the cover properly.
Maintenance & Reliability
Routine inspection of the air supply filter and connections helps maintain consistent performance. The epoxy resin varnish resists corrosion, extending service life. Check the proximity switches (SJ2-SN, NC or logical 1) for wear if digital feedback is used. Periodic calibration verification ensures accuracy. Following these steps minimizes downtime and maximizes ROI.
Compatibility & Integration
The V18345-1017121001 integrates with any control system providing a 4-20 mA signal. Its digital input accepts 0-5 V DC for logic "0" and 11-30 V DC for logic "1". The digital output follows DIN 19234/NAMUR with 5-11 V DC supply. This compatibility simplifies replacement of older positioners. For availability, contact SpareTechPLC.
Selection Guide & Purchasing Advice
Before ordering, confirm your actuator type (linear or rotary) and mounting kit requirements. The V18345-1017121001 includes a mechanical kit for digital position feedback with proximity switches. Verify that your system uses 4-20 mA two-wire input and that the ATEX zone matches EEx ia IIC T6. SpareTechPLC stocks this model and can assist with lifecycle status and alternatives.
Frequently Asked Questions
Q: What is the supply pressure range for the V18345-1017121001?
A: The supply pressure is 1.4 to 6 bar (20 to 90 psi).
Q: Does this positioner include analog or digital position feedback?
A: It comes without option modules for analog or digital feedback, but includes a mechanical kit for digital feedback with proximity switches.
Q: What type of explosion protection does it have?
A: It has ATEX Ex II 2 G EEx ia IIC T6 approval.
Q: What is the weight of the V18345-1017121001?
A: It weighs 1.7 kg.
Q: Can it be used with rotary actuators?
A: Yes, it is ready for mounting to rotary actuators per VDI/VDE 3845.
