Flowserve Logix 3800e 3800 Digital Valve Positioner Flowserve Control Valve Spare Parts Supplier Price

Advanced Digital Control Valve Positioners for Industrial Automation

The Flowserve Logix 3800 and Logix 3800E Digital Valve Positioners are advanced electro-pneumatic positioners engineered to deliver precise, repeatable valve control in automated process systems. Both models combine fast response, digital control algorithms, and diagnostic functionality to improve process stability, reduce variability, and enhance maintenance predictability.

The Logix 3800 series is compatible with both linear and rotary pneumatic actuators, enabling seamless integration into oil and gas production, chemical processing, power generation, refining, and general industrial automation. The Logix 3800 provides core digital positioning performance, while the Logix 3800E enhances the platform with improved diagnostics and extended monitoring capabilities, making it suitable for reliability-driven environments.

• Digital valve positioning for high accuracy and fast response
• Supports linear and rotary pneumatic actuators
• Advanced diagnostics and monitoring available on 3800E
• Auto-calibration and simplified commissioning
• Compatible with HART communication for remote access
• Stable control under changing process conditions
• Low air consumption and optimized actuator drive
• NAMUR mounting compatibility for flexible installations
• Suitable for retrofit upgrades of legacy positioners
• Long-term reliability in continuous process applications

Values may vary depending on actuator configuration and operating environment.

The positioner receives a 4–20 mA command signal from the control system. Internal digital controls compare the signal with feedback from the valve stem or shaft, adjusting pneumatic output to move the valve to the required position. The Logix 3800E model additionally captures diagnostic information including cycle count, travel deviation, air usage patterns, and position errors to support predictive maintenance strategies and reliability programs.

• Automated valve control for flow, pressure, and level regulation
• Oil and gas pipeline control and process skids
• Chemical reactors and batch control systems
• Steam and utility management in power generation
• Water and wastewater flow networks
• General manufacturing process regulation
• Modernization projects replacing analog valve positioners

• Improves valve control precision and stability
• Reduces process variability and enhances throughput
• Enables remote monitoring through HART connectivity
• Supports predictive maintenance through advanced diagnostics
• Short commissioning time with auto-calibration
• Reliable and consistent operation in demanding environments
• Field-proven performance for continuous process industries

• Mount positioner on actuator using NAMUR interface
• Connect pneumatic supply and air lines
• Wire control signal and HART communication
• Run auto-calibration and verify full travel
• Integrate diagnostics into plant maintenance systems when using 3800E

Can the Logix 3800 and 3800E be used on rotary valves?

Yes, both models work with rotary actuators using mounting kits.

Is HART communication available on both models?

Yes, HART support is standard for remote access and diagnostics.

What is the difference between Logix 3800 and 3800E?

The 3800E offers extended diagnostics and enhanced monitoring, providing more data for maintenance planning.

Are these models suitable for control valve retrofits?

Yes, they are widely used for upgrading pneumatic or older digital positioners.

Do these positioners support predictive maintenance?

The Logix 3800E includes diagnostics that support predictive strategies when integrated with monitoring systems.

• Flowserve Logix 3200MD Digital Valve Positioner
• Flowserve Logix 520MD Digital Valve Positioner
• Flowserve Logix 420 Electro-Pneumatic Positioner
• Flowserve Pneumatic Control Valves and Actuators