Flowserve 3200MD and 520MD are high-performance intelligent digital valve positioners of the Logix series, engineered for precise and reliable control of linear and rotary actuators in industrial process systems. Adopting piezoelectric technology and 32-bit microprocessor, they convert 4-20 mA electrical signals into proportional pneumatic output, with built-in HART communication for two-way data transmission and remote configuration. These positioners feature ultra-fast response, high positioning accuracy and robust environmental adaptability, ideal for critical process control in harsh industrial conditions and compatible with single/double-acting actuators for diverse valve types.
| Parameter | Details |
|---|---|
| Input Signal | 4-20 mA DC, HART 5/7 communication (two-way data transmission) |
| Power Supply | Two-wire system, 10.0 VDC plus line losses (12.5–40 VDC optional) |
| Start-up Current | ≥3.6 mA (without analog output); ≥3.83 mA (with analog output) |
| Supply Pressure | Min 1.5 bar (22 PSI); Max 10.3 bar (150 PSI) |
| Output Pressure Range | 0 to 100% of air supply pressure |
| Positioning Accuracy | ±0.1% of full scale |
| Repeatability | ≤0.25% of full scale |
| Response Time | <50 ms |
| Power-up Time | <1.0 second |
| Operating Temperature | -52°C to 85°C (-61.6°F to 185°F) |
| Operating Humidity | 0 - 100% non-condensing |
| Enclosure Protection | IP66/IP67 |
| Acceptable Supply Gasses | Air, sweet natural gas, nitrogen, CO2 |
| Main Material | Stainless steel / aluminum |
| Mounting | Compliant with industrial standard actuator mounting specifications |
Flowserve 3200MD and 520MD positioners are widely used in critical process control across various industrial sectors that demand high precision and reliability, with excellent performance in high pressure difference, corrosive medium and frequent adjustment working conditions:
Q: What is the core difference between Flowserve 3200MD and 520MD?
A: 3200MD is the mainstream high-performance model for general industrial critical control with rich diagnostic functions and remote mounting support; 520MD is optimized for compact installation and high-flow capacity requirements, with more flexible air supply adaptation for small and medium-sized actuators.
Q: Can Flowserve 3200MD/520MD be used in hazardous areas?
A: Yes, both models feature explosion-proof and intrinsically safe design, with robust enclosure and anti-corrosion material, suitable for hazardous industrial areas with flammable and explosive media.
Q: How to realize remote configuration and calibration of the positioners?
A: They support HART 5/7 communication protocol, which can realize remote parameter configuration, calibration and real-time status monitoring through HART communicator or ValveSight™ software, without on-site operation.
Q: What types of actuators and valves are compatible with 3200MD and 520MD?
A: Both models are compatible with single and double-acting linear and rotary actuators, matching globe valves, ball valves, butterfly valves, plug valves and other common industrial control valves.
Q: Do the positioners have local operation and status display functions?
A: Yes, they are equipped with local LED status display and DIP switch calibration buttons, which can realize on-site quick calibration and real-time viewing of equipment running status without additional tools.
For product inquiries, technical support, quotation requests or customized configuration solutions, please contact us directly via the following channels:
wechat/what's app/phone number:+8613472860702
Our professional industrial automation team is ready to provide you with one-stop services including product selection, on-site commissioning and after-sales support.
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