The Fisher 3582i Electro-Pneumatic Positioner is a reliable valve positioner designed to provide accurate positioning of control valves in industrial process control systems. It converts a 4–20 mA electrical signal into a proportional pneumatic output pressure, ensuring precise control of valve position and stable process performance.
This electro-pneumatic positioner combines a pneumatic valve positioner with an integrated electro-pneumatic converter, allowing it to receive electrical control signals directly from distributed control systems (DCS) or process controllers. The device provides fast response, stable positioning accuracy, and dependable operation even in demanding process environments.
The Fisher 3582i positioner is widely used in industries such as oil & gas, petrochemical, power generation, and water treatment, where accurate valve control is critical for maintaining process efficiency and safety.
| Parameter | Specification |
|---|---|
| Product Model | Fisher 3582i Electro-Pneumatic Positioner |
| Input Signal | 4–20 mA DC constant current |
| Maximum Compliance Voltage | 30 VDC |
| Output Signal | Pneumatic pressure proportional to input signal |
| Supply Pressure | Recommended: 0.3 bar (5 psi) above actuator requirement |
| Maximum Supply Pressure | 3.4 bar (50 psig) or actuator pressure rating |
| Supply Medium | Clean, dry air |
| Action | Field reversible (Direct / Reverse) |
| Independent Linearity | ±2% of output span |
| Maximum Air Consumption | approx. 0.46–0.64 m³/hr depending on supply pressure |
| Mounting Type | Actuator mounted |
| Maximum Valve Travel | approx. 105 mm |
| Weight | approx. 3.6 kg |
The positioner produces pneumatic pressure required by the actuator and can deliver up to 95% of the supply pressure as output to control valve movement.
The Fisher 3582i electro-pneumatic positioner is widely used in industrial process automation systems.
Used for pipeline control valves, compressor stations, and refinery process control systems.
Ensures stable control of pressure, temperature, and flow in chemical processing units.
Applied in steam turbine systems, boiler control valves, and cooling water systems.
Provides accurate valve positioning in reaction control systems.
Maintains precise flow regulation in water distribution and treatment plants.
This may occur due to wiring issues, insufficient air supply, or incorrect signal calibration.
Air leakage, actuator problems, or incorrect tuning settings may cause unstable valve positioning.
Clogged air filters or insufficient supply pressure can reduce response speed.
Improper electrical signal or faulty electro-pneumatic converter may affect signal conversion accuracy.
Professional calibration and maintenance can help prevent most of these issues.
In some projects, customers compare the Fisher 3582i positioner with other valve positioners from major brands. Alternative models may include:
Masoneilan SVI2 Digital Valve Positioner
Samson 3730 Smart Valve Positioner
Fisher DVC6200 Digital Valve Controller
Our engineers can assist with model comparison and provide recommendations based on valve type and process requirements.
We are a professional supplier specializing in control valves, valve positioners, and industrial instrumentation for international markets.
With many years of experience in industrial automation and process control equipment, we provide reliable solutions for global customers.
Our products have been exported to customers in Southeast Asia, the Middle East, and other regions, supporting numerous industrial projects.
Our experienced engineers provide assistance with product selection, technical consultation, installation guidance, and troubleshooting.
We maintain extensive stock of popular valve positioner models from well-known brands such as Fisher, Masoneilan, and Samson.
With mature logistics channels and export experience, we can provide fast international shipping to support urgent project requirements.
For more information about our company and product range, please visit:
www.shgongboshi.com
We maintain regular stock for commonly used valve positioner models including the Fisher 3582i.
Large inventory of valve positioners
Ready for immediate shipment
Suitable for urgent maintenance projects
Stock orders: 3–7 working days
Bulk orders: delivery time depends on order quantity
International air freight
Sea freight for large orders
Professional export packaging
If you are looking for Fisher 3582i Electro-Pneumatic Positioner price, stock availability, or technical support, please send us your inquiry.
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