Description
Introduction of Electric Quarter-Turn Valve Actuator BJ20-Q1 Intelligent Range BJ20-Q1 Intelligent Range

Electric Quarter-Turn Valve Actuator BJ20-Q1 Intelligent Range is a top-tier industrial control component. As a core drive unit for modern fluid pipeline systems, this actuator delivers stable and precise power for valve opening and closing. Specifically engineered for ball valves, butterfly valves and other quarter-turn valves, the unit establishes reliable automatic control across diverse industrial fluid transmission scenarios. Furthermore, the device sustains consistent operation under continuous working pressure and fully meets the strict requirements of industrial process control.
Featuring high‑grade aluminum alloy as its main body material, this Electric Quarter-Turn Valve Actuator achieves an optimal balance between light weight and exceptional mechanical strength. Boasting a compact structure, the product effectively saves installation space while supporting fast on‑site commissioning without the need to remove the outer cover. This thoughtful design greatly facilitates field installation and debugging, significantly reducing operational difficulty and shortening overall commissioning time.
Equipped with an absolute encoder for accurate valve position detection, the actuator captures high-precision real-time position data and presents clear running status indications via a smart LCD screen. Moreover, the unit operates reliably even in complex and harsh working environments, and its compliance with international standard flange dimensions ensures high compatibility with most mainstream valves. As a result, this Electric Quarter-Turn Valve Actuator stands out as the ideal choice for modern industrial automation.
Structural & Material Strengths of Electric Quarter-Turn Valve Actuator BJ20-Q1 Intelligent Range
Intelligent Control Features of Electric Quarter-Turn Valve Actuator

This Electric Quarter-Turn Valve Actuator supports multiple intelligent control modes, allowing flexible local operation and remote switch control. In addition, the unit delivers analog regulation to achieve precise flow control, while also supporting ESD emergency shutdown functions to enhance operational safety. The actuator further enables two-wire control for simplified system wiring, and is compatible with common fieldbus communication protocols to support digital networking. Through these intelligent functions, the device facilitates convenient remote monitoring and fault diagnosis. At the same time, the actuator supports non-intrusive parameter setting via built-in buttons, enabling users to calibrate signals without removing the outer cover. The unit is also equipped with phase self-correction to effectively prevent wiring errors. With these comprehensive features, this Electric Quarter-Turn Valve Actuator significantly improves operation efficiency and shortens setup time, and its advanced intelligent design greatly simplifies daily operation and maintenance work.
Complete Protection System of Electric Quarter-Turn Valve Actuator Electric Quarter-Turn Valve Actuator BJ20-Q1 Intelligent Range
This Electric Quarter-Turn Valve Actuator is equipped with comprehensive protection functions, including torque overload protection to effectively prevent valve damage during operation, as well as motor overheat protection that safeguards the unit to maintain safe and stable running. In addition, it features power phase loss protection and phase sequence protection to further enhance operational reliability, while instant reverse protection avoids mechanical shock and extends the actuator’s service life. Furthermore, valve stuck protection and electrical isolation protection add an extra layer of security, with all protection functions operating automatically in real time to reduce failure risks and ensure uninterrupted operation. On top of that, clear fault alarm signals are sent to support rapid troubleshooting and maintenance response, and this comprehensive protection system ultimately keeps the equipment and pipeline system secure, minimizes downtime, and effectively reduces maintenance costs.
Product Specifications
- Power Supply: Three-phase: 380Vac ±10%, 50Hz ±2%; Single-phase: 220Vac ±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).
- Input Signal: DC4–20mA (for modulating type only); DC24V, AC220V, or dry contact.
- Output Signal: 4 field-configurable output contacts, 1 remote indicator output contact, and 1 fault alarm output contact.
- Output Contact Rating: 250Vac/5A
- Output Current Load Impedance: ≤750Ω
- Output Torque: Refer to Table 6
- Protection Rating: IP65 (IP67 optional)
- Insulation Class: Class F
- Ambient Temperature: -20℃ to +60℃ (optional range: -30℃ to +70℃)
- Relative Humidity: ≤95% (at 25℃)
- Duty Cycle: Short-time duty, 10 minutes
- Lubrication: High-performance grease
- Installation: Mounting flange complies with ISO5211:2017 (GB/T12223-2023) standard; non-standard flanges can be customized according to user requirements.
- Cable Entry: Two M25x1.5 cable entries, suitable for two cables with diameters of 13–18mm; Waterproof models are equipped with cable waterproof connectors.

Electric Quarter-Turn Valve Actuator BJ20-Q1 Intelligent Range
| Power supply | Output Speed (rpm) | Rated Torque (N.M) | Motor Power (Class F) (W) | Rated Current (A) | Maximum Valve Stem Diameter(mm) | Manual Speed Ratio | Weight (kg) |
| Three-phase | 0.5 | 200 | 75 | 0.22 | 28 | 90 | 12.7 |
| 1 | 90 | 0.26 | |||||
| Single-phase | 0.5 | 200 | 90 | 0.43 | 28 | 90 | 12.7 |
| 1 | 120 | 0.5 |
Application Scenarios
This BJ20-Q1Actuator serves a wide range of industries, with extensive application in power, petroleum and chemical engineering, and meanwhile delivers reliable performance in metallurgy, paper making and environmental protection fields. Additionally, the actuator is well suited for food processing, marine and municipal engineering, and enables stable valve control in water supply and drainage systems. Furthermore, the product adapts smoothly to both high and low ambient temperatures, and maintains consistent performance during long-term continuous operation. In turn, the equipment effectively enhances the automation level and reduces manual operation, while ensuring safe and efficient fluid control in all application scenarios. Consequently, this Electric Quarter-Turn Valve Actuator has become a critical component in modern industrial automation.

Related Product: BZ linear stroke intelligent electric actuators

BZ linear stroke intelligent electric actuators act as key on-site control devices in process control. Furthermore, they closely match various linear motion valves to build complete control solutions. Specifically, they apply to globe valves, control valves and regulating valves in power, petroleum, chemical and other industries, and they adopt standard connection threads to fit different valve structures. Meanwhile, they are equipped with special lubricating grease to maintain stable running and extend service life during long-term operation.
In addition, BZ series can connect with multiple communication modules and external control tools to further enhance control flexibility and system compatibility. For instance, the series supports Profibus-DP, Modbus, HART and other fieldbus cards to realize digital remote control, and it also cooperates with infrared setters to complete non-intrusive parameter setting without opening the cover. Furthermore, it is equipped with manual handwheels to support on-site emergency operation in the event of power failure.
Moreover, BZ series provides diversified models and integrates monitoring and feedback components to ensure safe and reliable operation. To be specific, it covers thrust from 1KN to 25KN and offers switch type and regulating type options for different working conditions. At the same time, it connects with valve position feedback, state indication and alarm components, and additionally integrates multiple protection functions to form a stable and intelligent on-site control system.






