High Precision Flow Control Emerson Fisher 582i I/P Converter 3582i Electro Pneumatic Positioners with HART Communication
Характер продукции
Fisher 3582i Electro-Pneumatic Valve Positioner
Product Overview
The Fisher 3582i is an electro-pneumatic valve positioner designed for industrial scenarios requiring stable and reliable control. Its core advantages lie in mechanical feedback mechanism and modular design, enabling quick adaptation to various actuators while providing basic positioning accuracy and anti-interference capability—an ideal upgrade for traditional pneumatic positioners.
Key Functions & Technical Highlights
Stable Basic Control
Adopts nozzle-flapper pneumatic amplification technology with output pressure ranges of 3–15 psi or 6–30 psi, compatible with single-acting diaphragm actuators (e.g., Fisher 667/657 series), achieving positioning accuracy of ±1% stroke.
Mechanical feedback rod directly connects to the valve stem, suitable for vibrating environments (e.g., compressor bypass valves).
Flexible Signal Compatibility
Supports 4-20mA analog input, upgradable to full electro-pneumatic control via 582i converter, compatible with DCS/PLC systems.
Independent zero and span adjustment supports split-range control (e.g., 0–50% signal corresponding to 3–9 psi output) for complex process flows.
Environmental Adaptability & Explosion Protection
Enclosure protection class IP66/IP67, optional explosion-proof certifications (ATEX, FM, IECEx), suitable for harsh environments with dust or corrosive gases.
High-temperature type extends operating temperature to -40°C to 85°C, meeting control needs for high-temperature media like steam or hot oil.
Low Maintenance & Longevity
Fewer moving parts eliminate regular calibration, with Mean Time Between Failures (MTBF) exceeding 100,000 hours.
Modular design allows field replacement of air supply modules or feedback components, reducing spare parts inventory costs by 50%.
Application Scenarios
Basic Industrial Control: Water system flow regulation, HVAC pressure control.
Energy Sector: Small boiler burner control, natural gas pressure regulating station valve positioning.
General Manufacturing: Food processing material conveying valves, packaging machinery cylinder drive.
Nuclear Auxiliary Systems: 3582NS model meets nuclear-grade radiation resistance for non-safety class valve control.
