Description
Introduction of Intelligent Part-turn Electric Actuator BJ90-Q3
Intelligent Part-turn Electric Actuator BJ90-Q3 is a professional quarter-turn intelligent drive device for industrial valve control. First of all, this actuator adopts a high-strength aluminum alloy enclosure and a compact integrated structure. Key features include small size, light weight, and stable mechanical output. These qualities make it perfectly match butterfly valves, ball valves, and other part-turn valves for industrial pipeline regulation. Besides, the device applies non-invasive setting technology. Operators can configure parameters, check status, and find faults without opening the cover. This greatly simplifies on-site commissioning work. Meanwhile, multiple self-protection mechanisms are integrated inside. They help the actuator cope with complex and harsh industrial environments.

Furthermore, this intelligent part-turn electric actuator combines intelligent logic control with high-precision sensing technology. Real-time monitoring covers output torque, valve position, and operating temperature. The system also delivers automatic fault diagnosis and alarm prompts. In addition, several control modes are supported: local control, remote switch control, analog regulation, and ESD emergency shutdown. These modes fully meet the diverse automation demands of modern industrial systems.
More importantly, the actuator follows industrial high-reliability design standards. Firstly, Class F insulation and wide voltage adaptive design are adopted. This ensures stable operation under fluctuating power supply and wide ambient temperatures. In addition, the device offers IP67 high protection grade and an optional explosion-proof version. Such versions are suitable for flammable, explosive, and dusty hazardous areas. Meanwhile, compatibility with mainstream fieldbus protocols enables easy system networking and centralized management. As a result, this actuator is widely used in electric power, chemical, metallurgy, environmental protection, and municipal engineering industries.
Intelligent Part-turn Electric Actuator BJ90-Q3 Specifications
- Power Supply (Three-phase):380Vac ±10%, 50Hz ± 2%;
- Optional power supply: AC220–660V, 50/60Hz (compatible with both three-phase three-wire and three-phase four-wire systems;special power requirements must be specified when ordering)
- Power Supply (Single-phase):220Vac ±10%, 50Hz ±2%;
Optional power supply: AC220–660V, 50/60Hz (special power requirements must be specified when ordering) - Input Signal:DC4–20mA (for modulating type only); DC24V, AC220V, or passive dry contact
- Output Signal:4 field-conf9igurable output contacts, 1 remote indicator output contact, 1 fault alarm output contact
- Output Contact Rating:250Vac/5A
- Output Current Load Impedance:≤750Ω
- Rated Torque:900 N.m
- Protection Rating:IP67 (IP68 optional)
- Explosion-proof Rating (Optional):Gas explosion-proof: Ex db IIB T4 Gb Dust explosion-proof: Ex tb IIIB T130℃ Db
- Insulation Class:Class F
- Ambient Temperature:-40℃ to +70℃
- Relative Humidity:≤90% (at 20±5℃)
- Duty Cycle:Short-time duty, 15 minutes
- Lubrication:High-grade grease
- Installation:Mounting flange complies with ISO5211:2017 (GB/T12223-2023); non-standard flanges can be customized upon requestCable Entry:Junction box includes two M20×1.5 and one M27×2 cable entries;
Waterproof type uses cable waterproof joints for cable diameters of 9–14mm (2 pcs) and 13–18mm (1 pc);
Explosion-proof type requires user to supply certified explosion-proof cable glands.
Overall Dimensions of Actuators
| Power supply | Output Speed (rpm) | Rated Torque (N.M) | Motor Power (Class F) (W) | Rated Current (A) | Locked Current (A) | Maximum Valve Stem Diameter(mm) | Manual Speed Ratio | Weight (kg) |
| Three-phase | 0.5 | 900 | 370 | 1.31 | 4.6 | 42 | 87 | 26.6 |
| 1 | ||||||||
| Single-phase | 0.5 | 900 | 300 | 2.59 | 7.1 | 42 | 87 | 26.6 |
| 1 |
Core Intelligent Hardware Configuration
Intelligent Part-turn Electric Actuator adopts high-grade hardware configuration, and achieves stable and accurate control performance in actual operation. It is equipped with dedicated fieldbus card, supports mainstream industrial communication protocols, and realizes seamless data interconnection with upper control system. It also uses high-precision absolute encoder, collects valve position data in real time, retains position memory after power loss, and avoids repeated calibration to ensure accurate valve action.

Humanized Operation & Structural Design
Meanwhile, Intelligent Part-turn Electric Actuator optimizes humanized operation logic, and upgrades overall structural protection capability. It is equipped with professional LCD dot-matrix display, clearly shows operation status, limit parameters and fault codes, and brings intuitive viewing and convenient on-site operation. It applies standard non-invasive design and double sealing structure, blocks dust, moisture and corrosive gas, and ensures long-term stable operation on industrial sites.

Multi-industry Application Compatibility
In addition, Intelligent Part-turn Electric Actuator has strong scenario adaptability, and can adapt to various complex industrial working conditions. It matches part-turn valves of different specifications, provides reasonable output torque and rotating speed, and meets pipeline flow regulation and cut-off requirements. It runs stably in high humidity, low temperature and outdoor open-air environments, covering petrochemical, water supply, papermaking and marine engineering scenarios.

Full-lifecycle Easy Maintenance
Related product:BD/BDM-C8 Multi-turn Intelligent Electric Actuator

BD/BDM-C8 serves as a high-performance multi-turn intelligent electric actuator. It covers a wide torque range from 50 N.m to 3500 N.m. Matched gearboxes can boost torque up to 300000 N.m. It uses non-intrusive design and needs no cover opening for debugging. The dot-matrix screen shows data in Chinese and English clearly.





