PMSM motor
Permanent magnet synchronous motor design improves response, efficiency, and positioning stability.
Electric Actuators
EFX-D Multi-turn Intelligent Electric Actuator
EFX-D multi-turn intelligent electric actuator for gate, globe, sluice, and linear valves needing torque range, feedback, and robust controls.
30-3000 N·mIP66/67, optional IP684-20 mA, MODBUS RTU (RS485), PROFIBUS DP

Product overview
The EFX-D series combines intelligent motor control, robust gearing, configurable interfaces, and industrial enclosure options for demanding multi-turn valve duties.
Permanent magnet synchronous motor design improves response, efficiency, and positioning stability.
Class F insulation supports reliable operation in demanding actuator duty cycles.
Separated wiring and control cavities reduce moisture ingress during commissioning and service.
Wear-resistant worm gearing supports high torque transfer and long service life.
Configurable travel, operating time, and torque settings simplify valve matching.
Mechanical and motor design keeps operating noise under 70 dB @ 1 m.
4-20 mA, MODBUS RTU, and PROFIBUS DP options integrate with modern control systems.
Emergency shutdown and discrete open, close, and stop commands support plant safety logic.
Specifications
Review core performance, control, protection, interface, and compliance information.
EFX-D specification summary
| Torque range | 30-3000 N·m |
|---|---|
| Output speed (multi-turn) | 18 / 24 / 36 / 48 / 72 / 96 r/min |
| Combined-type range | Quarter-turn via two-stage reducer: 1,600-350,000 N·m · Linear thruster: 3,000-100,000 N |
| Working duty | S2 15 min on/off (≤ 60 starts/h) · S4 50% modulating (≤ 1200 triggers/h) |
| Standards | BS EN15714-2, ISO5210, ISO5211, IEC 60034-1, ISO22153 |
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| Protocols | 4-20 mA, MODBUS RTU (RS485), PROFIBUS DP |
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| Motor drive options | G — induction motor, mains-driven (all frames) · M — PMSM, VFD-driven (D15-D40) |
| Enclosure | IP66/67, optional IP68 |
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| Explosion-proof | II 2G Ex db IIC T6 Gb / II 2D Ex tb IIIC T80°C Db |
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| Functional safety | SIL3 capable — TÜV / exida certified |
| Supply voltage | AC 380 V 3-phase (code e) · AC 220 V 1-phase (code d) |
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| Command options | ESD, open, close, stop, local/remote, analogue modulation |
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| Manual operation | EN12570 handwheel; switch to manual only allowed after motor has stopped |
| Operating temperature | -25 °C to +80 °C standard (-60 °C to +80 °C low-temperature option) |
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| Noise level | ≤ 70 dB at 1 m (ISO 3945) |
| Warranty | 1 year manufacturer warranty; after-sales engineer response within 2 hours |
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| EFX-D15 | Max torque 150 N·m · Weight 41 kg · 610×415×470 mm · Handwheel φ200 (φ320 opt., 1:4 manual ratio) |
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| EFX-D30 | Max torque 300 N·m · Weight 57 kg · 640×428×470 mm · Handwheel φ200 (φ320 opt., 1:4 manual ratio) |
| EFX-D40 | Max torque 400 N·m · Weight 65 kg · 656×462×494 mm · Handwheel φ200 (φ320 opt., 1:1 manual ratio) |
| EFX-D60 | Max torque 600 N·m · Weight 78 kg · 710×448×510 mm · Handwheel φ200 (φ320 opt., 1:1 manual ratio) |
| EFX-D120 | Max torque 1200 N·m · Weight 87 kg · 737×500×512 mm · Handwheel φ200 (φ320 opt., 1:1 manual ratio) |
| EFX-D250 | Max torque 3000 N·m · Weight 140 kg · 858×600×566 mm · Handwheel φ200 (φ320 opt., 1:1 manual ratio) |
BS EN15714-2, ISO5210, ISO5211, IEC 60034-1, ISO22153
II 2G Ex db IIC T6 Gb / II 2D Ex tb IIIC T80°C Db
Downloads
English product catalogue for FFC EFX-D and EFX-Q intelligent electric actuators. Superseded by the 2026 V1 per-line documentation set — retained for reference; model designations and speed steps have since been revised (FFC R&D R1.0, 2026-05-26).
Project intake checklist for valve torque, duty, controls, protection, and certification requirements. Available on request via inquiry while the standalone PDF is prepared.
Knowledge
Technical Guides
A practical guide to torque, duty cycle, enclosure, controls, and certification inputs engineers need before sizing electric actuators.
Technical Guides
How MODBUS RTU, PROFIBUS DP, analogue signals, and discrete I/O fit into electric actuator control and commissioning projects.
Application Notes
Key checks for wet, outdoor, and hazardous area actuator installations, including IP ratings, certification, glands, and ambient limits.
Product Insights
A closer look at EFX-D drive design, controls, sealing, model range, and configuration choices for multi-turn valve automation.
Send FFC the valve type, torque, duty cycle, enclosure, power supply, and control protocol for product guidance.