Electric Valve Actuators

Quarter-Turn Electric Actuators

Compact 90° rotation (18 Nm to 4,000 Nm) for ball, butterfly, and plug valves; available in On/Off or 4-20mA continuous modulating duty.

Multi-Turn Electric Actuators

High-thrust linear stem drives (up to 300,000 Nm thrust) with multi-rotation encoders, built for rising-stem gate valves, globe valves, and water penstocks.

IP68 Water-Proof Submersible Actuators

Certified for continuous underwater immersion (10 meters depth for 72 hours), ideal for underground valve pits and flood-prone chambers.

IP67 Explosion-Proof Electric Actuators

Heavy-duty flameproof enclosures certified to ATEX and IECEx (Ex d IIB/IIC T4/T6), delivering spark-free safety in volatile oil, gas, and refining zones.

Need Custom Electric Actuation?

Beyond standard catalog series, we engineer custom drive sleeve bushings (double-square, keyed, flat), specialized ISO 5211 mounting brackets for field valve retrofits, non-standard voltages, and internal battery fail-safe packs tailored to your pipeline valves.

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Download Full Electric Actuator Catalog

Get instant access to comprehensive engineering data sheets, ISO 5211 dimensional schematics, 2D/3D CAD models, dynamic motor torque curve charts, and terminal wiring diagrams across our complete electric actuator family.

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Motion & Stroke Type

Define your valve travel: Quarter-Turn (90°) for ball, butterfly, and plug valves, or Multi-Turn Linear for rising-stem gate, globe, and sluice penstocks.

Breakaway Torque & Safety Margin

Determine the valve’s maximum breakaway and dynamic torque under peak differential pressure. Always calculate a 30% (clean water) to 50% (slurries/viscous media) engineering safety margin.

Available Power Supply Voltage

Specify your on-site control power source: DC power (12VDC, 24VDC), Single-Phase AC (110VAC, 220VAC), or Industrial 3-Phase AC (380VAC, 415VAC / 50-60Hz).

Duty Cycle & Modulating Rating

Choose motor duty: S2 15-minute duty for intermittent On/Off isolation, or S4 50% to S1 continuous duty with high-cycling thermal motor protection for continuous 4-20mA flow modulation.

ISO 5211 Flange & Drive Shaft Sizing

Match top mounting flange standards (F03 through F30) and specify drive shaft dimensions: double-square, keyed bore, or parallel flat drive to ensure exact mechanical alignment.

Control Mode & Signal Telemetry

Select operational format: simple On/Off dry contact switching, analog proportional modulation (4-20mA / 0-10V), or digital industrial communication bus (Modbus RTU / Profibus-DP).

Enclosure & Hazardous Protection

Specify site protection standards: standard weatherproof IP67, continuous submersible IP68 (10m / 72h), or ATEX / IECEx Ex d IIB/IIC T4/T6 explosion-proof for hazardous gas and dust atmospheres.

Final Review & Factory Sizing Quote

Submit your valve brand, size, and operating parameters to our automation engineers for torque matching, 3D CAD verification, and factory-direct pricing.

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High-Precision Digital Modulation & Zero Hunting

Equipped with high-resolution digital microprocessor servo cards supporting 4-20mA and 0-10V analog signals. Advanced algorithmic positioning with minimal deadband eliminates pipeline hunting and motor chatter, ensuring smooth, highly repeatable throttling across severe modulating duties.

Comprehensive Multi-Turn & Quarter-Turn Motion

From compact 90° quarter-turn rotary actuators (18 Nm to 4,000 Nm) to heavy multi-turn linear stem drives producing up to 300,000 Nm thrust. Built-in electronic torque switches and multi-rotation encoders dynamically protect the valve stem from bending or shearing under mechanical jam conditions.

Severe Environment Defense (True IP68 & ATEX Ex d)

Engineered for extreme operating environments. Our enclosures feature certified IP68 continuous submersion ratings (tested at 10 meters depth for 72 hours) for flood-prone valve vaults, alongside heavy flameproof enclosures certified to ATEX and IECEx Ex d IIB/IIC T4/T6 with internal anti-condensation space heaters.

Non-Intrusive Smart Calibration & Fieldbus Telemetry

Featuring a local LCD screen and non-intrusive infrared remote control. Operators can safely calibrate travel limits, torque thresholds, and control logic on-site without opening the electrical housing in rain, humidity, or hazardous explosive atmospheres. Fully compatible with Modbus RTU and Profibus-DP protocols.

Universal ISO 5211 Direct Mounting & Custom Bushings

Manufactured in strict accordance with standardized ISO 5211 top flange patterns (F03 through F30). Direct-mount bracketless assembly eliminates rotational backlash. We provide factory-machined custom drive sleeve bushings (double-square, keyed bore, or parallel flat) to ensure a zero-play retrofit on any valve.

Emergency Fail-Safe Return & 100% Torque Bench Testing

Every unit incorporates a declutchable manual handwheel with automatic electrical interlock, with optional internal battery/supercapacitor packs for automatic power-loss emergency shut-off. Every actuator undergoes 100% dynamic full-load torque testing and electrical insulation dielectric testing before packing.