M Series Linear Actuator
Compatible with single‑seat and shutoff valves, it supports multiple control modes with VFD capability. Wide‑ranging specifications deliver optimized integrated control solutions.
Technical data
| Thrust Range: | 8–120 kN | Output Speed: | 2.9–4.7 mm/s |
| Explosion Protection Rating: | IEC Ex db h IIC T4 Gb/Ex h tb IIIC T130°C Db | Dead Band: | adjustable from 0.5% to 5% |
| Ambient Temperature Range: | -60°C to +70°C |
Features & Benefits
VFD
Built-in VFD module and variable frequency motor reduce inrush current and enable adjustable output speed, so as to mitigate water hammer effect.
Soft Positioning
The actuator decelerates softly before reaching end-of-travel positions. This reduces impact on the valve body from the actuator’s mechanical kinetic energy and extends valve service life.
Flexible Control Configuration
The product monitors more than 20 status signals, including open/closed end-position, remote/local switchover, general fault alarm, etc. Any status can be transmitted to the system via any output channel through configuration settings.
Comprehensive Self-Diagnostics with Configurable Safety Parameter Operation
Featuring an integrated intelligent structure, the product provides independent self-diagnosis to reliably identify faults and alarm events.
Certifications
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IECEx
IEC global explosion-proof system with worldwide recognition;explosion-proof products meet Ex db h IIC T4 Gb/Ex h tb IIIC T130℃ Db rating
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CE EMC (Directive 2014/30/EU) LVD (Directive 2014/35/EU) MD(Directive 2006/42/EU)
Mandatory EU market access, EMC compliant
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ATEX Directive (2014/34/EU)
Mandatory EU certification for explosive atmosphere equipment; explosion-proof products meet Ex db IIC T4 Gb/Ex h tb IIIC T130℃ Db rating
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EAC TR-CU （004/2011+012/2011+020/2011）
Mandatory explosion-proof certification for 5 EAEU states;explosion-proof products meet 1Ex db IIB T4 Gb X and 1Ex db IIC T4 Gb X ratings；Mandatory EMC certification；safety of low-voltage equipment。
Applications
Power
Widely used on boiler, turbine, blower and other stations to precisely adjust medium parameters, realize valve regulation and emergency cut-off, and ensure stable and safe unit operation.
Case Studies
Maoming Bohe Power Plant – Auxiliary Project for Ultra‑supercritical Unit Boilers
Deployed at the 1,000 MW ultra-supercritical thermal power unit for main feedwater control valve service, the product delivers substantial thrust and high positioning accuracy for high-pressure, high-temperature steam service. Featuring self-diagnostics and adaptation to frequent load fluctuations, it demonstrates reliable performance in full-range flow regulation.
Chemical
Widely deployed in chemical plants, mainly for rapid valve cut-off, flow regulation and emergency safety shutoff.
Water Treatment
Applied in municipal and environmental projects, waterworks and sewage systems for valve on/off control, flow and liquid level regulation.
