The Flowserve Logix 520MD, 3200MD, and 3800 Digital Positioners represent the pinnacle of valve control technology, delivering precise positioning, advanced diagnostics, and robust performance for industrial applications. Engineered with state-of-the-art piezo technology and supporting HART and Foundation Fieldbus communication, these positioners ensure seamless integration and optimal control for both linear and rotary valves. The 520MD offers cost-effective diagnostics, the 3200MD provides high-performance control with user-friendly setup, and the 3800 excels in harsh environments with high air capacity and modularity. Paired with ValveSight™ software, these positioners enable predictive maintenance, making them ideal for oil and gas, chemical, and power generation industries.
Parameter | Logix 520MD | Logix 3200MD | Logix 3800 |
---|---|---|---|
Input Signal | 4-20 mA, HART 7 | 4-20 mA, HART 7, Foundation Fieldbus | 4-20 mA, HART 7, Foundation Fieldbus, Discrete I/O |
Output Signal | Pneumatic (3-15 psi) | Pneumatic (0.2-1.0 bar) | Pneumatic (3-15 psi) |
Accuracy | ±0.1% FS | ±0.08% FS | ±0.07% FS |
Air Capacity | Not specified | Not specified | 30.6 Nm³/h @ 4.1 bar (18 SCFM @ 60 psi) |
Air Consumption | Low (not quantified) | Low (not quantified) | 0.082 to 0.637 Nm³/h @ 4.1 bar (0.048 to 0.375 SCFM @ 60 psi) |
Operating Temperature | -40°C to 85°C (-40°F to 185°F) | -40°C to 85°C (-40°F to 185°F) | -52°C to 85°C (-61.6°F to 185°F) |
Protection Rating | IP66 | IP66/NEMA 4X | IP66/NEMA 4X |
Materials | Aluminum | Industrial aluminum | Copper-free aluminum, stainless steel |
Certifications | ATEX, FM, CSA, Intrinsically Safe (Class I Div 1, Zone 0) | ATEX, FM, CSA, Intrinsically Safe | ATEX, IECEx, SIL 3, Explosion-proof (Exd IIC) |
Valve Compatibility | Linear and rotary | Linear and rotary | Linear and rotary, double/single-acting |
The Flowserve Logix 520MD, 3200MD, and 3800 Positioners are designed for advanced valve control in critical industries:
The 520MD offers cost-effective diagnostics with HART, the 3200MD provides user-friendly setup and high precision, and the 3800 is designed for harsh environments with high air capacity and SIL 3 capability.
It provides predictive diagnostics, monitoring valve, actuator, and positioner health to prevent failures.
Yes, all models are certified for intrinsically safe and explosion-proof applications, with the 3800 offering Exd IIC and SIL 3 certifications.
The QUICK-CAL™ button (3200MD, 3800) and auto-tune (520MD) enable commissioning in under 60 seconds.
They support both linear and rotary valves, including ball, globe, and butterfly valves, for single- and double-acting actuators.
For more information about the Flowserve Logix 520MD, 3200MD, and 3800 Positioners, pricing, or to request a demo, contact our team: