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The Flowserve Logix 3400MD is a digital positioner built for reliable pneumatic valve control. It combines HART communication with easy local setup and solid performance, making it suitable for many everyday process applications where cost-effective digital positioning is needed.
Technical Specifications
Parameter
Specification
Input Signal
4–20 mA DC
Communication
HART
Supply Air
30–150 psig
Air Consumption
Low
Linearity
< ±1.0% FS
Repeatability
< 0.2% FS
Temperature Range
–40 °C to +80 °C
Enclosure Rating
NEMA 4X / IP66
Application Industry
Chemical plants
Power utilities
Oil & gas
General manufacturing
Industrial valve automation
Common Problems & Solutions
Problem: Air quality issues → Solution: Follow ISA air quality recommendations
Problem: Calibration after maintenance → Solution: Quick local calibration
Problem: Vibration sensitivity → Solution: Stable construction
Replacement Models
Older Flowserve positioners
Higher Logix models when more diagnostics are required