Description

Introdution of Part Turn Electric Actuator BJ30-Q1 Basic Series

Part Turn Electric Actuator BJ30-Q1 is a high-performance quarter‑turn control unit specially developed for industrial automatic valve control. At first, it adopts a high‑strength aluminum alloy casing, which brings a compact structure, light weight and excellent heat dissipation performance, and it maintains stable mechanical performance even in long‑term operation. Meanwhile, it provides a rated torque of 300N·m, supports standard voltage input, and matches various control signals to realize flexible switching and adjustment functions. Moreover, it integrates complete protection mechanisms, including torque overload, phase loss, motor overheating and valve jam protection, so it can avoid equipment damage and ensure continuous and safe operation.

Furthermore, this Part Turn Electric Actuator supports non‑intrusive parameter setting and calibration, and users can complete all configuration work through an external setting device or knob without opening the cover. Besides, it uses a dot‑matrix liquid crystal display to present real‑time operating data, and it cooperates with an absolute encoder to achieve high‑precision position detection. In this way, it greatly improves operation convenience and control accuracy.

In addition, it can be equipped with a variety of fieldbus cards to meet the access requirements of different intelligent control systems, and it is widely used in electric power, petroleum, chemical industry, metallurgy and other fields. Overall, this Part Turn Electric Actuator combines reliability, intelligence and ease of use, and it becomes an ideal driving component for medium torque valve control systems.

Technical Parameters of Part Turn Electric Actuator BJ30-Q1 Basic Series

• 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

Fieldbus Card Module

To begin with, the BJ30-Q1 supports optional fieldbus cards such as Modbus, Profibus-DP, HART, DeviceNet and FF, which can realize high‑speed digital communication and remote centralized control. Meanwhile, these bus cards support real‑time data transmission, fault feedback and parameter modification, and they simplify on‑site wiring and system integration effectively. Moreover, they have strong anti‑interference ability and adapt to complex industrial electromagnetic environments. As a result, the Part Turn Electric Actuator can connect with DCS and PLC systems smoothly, and it improves the automation and intelligence level of the whole control system.

Dot-Matrix LCD Display

Next, the built‑in dot‑matrix LCD display provides clear and comprehensive working state indication. It shows valve travel position, limit setting value, running status and fault alarm information in the form of characters, numbers and graphics, and supports multi‑language switching for intuitive reading. Besides, the display screen has high contrast and wide viewing angle, which is easy to observe in different lighting conditions. In this way, operators can quickly grasp equipment status, reduce misoperation and improve on‑site management efficiency.

Absolute Encoder

After that, the absolute encoder serves as the core component for valve position detection. It can capture and record accurate angular data in real time throughout operation, reliably maintain complete position information even during unexpected power outages, and requires no zero reset or recalibration after system restart. Furthermore, it delivers exceptional positioning accuracy, strong anti-interference capability, and excellent long-term stability, ensuring highly consistent and reliable control performance under various working conditions. As a result, it effectively enhances the control precision, response speed, and overall operational stability of the electric actuator.

Application Scenarios

Related Product：BD-C6 Multi-Turn Intelligent Electric Actuator 

The BD-C6 Multi-Turn Intelligent Electric Actuator is a new generation of intelligent multi-turn electric actuator designed for reliable valve control. It features a compact aluminum alloy housing with a non-intrusive structure, so operators can configure parameters without opening the electrical cover. Meanwhile, the dot-matrix LCD display shows valve position, torque values, and alarm messages in real time.

In terms of control flexibility, the BD/BDM-C6 supports local operation, remote switch control, and remote analog control (4–20 mA). It also offers ESD override and two-wire control for special applications. Furthermore, the built-in absolute encoder ensures accurate valve positioning even after power loss, while protection features like torque overload, motor overcurrent, phase loss, and instant reverse protection safeguard both the valve and the actuator.

Finally, this series covers a torque range from 50 N·m to 3,500 N·m, and with optional gearboxes it can reach up to 300,000 N·m. Therefore, the BD/BDM-C6 suits a wide range of industries including power generation, petrochemical processing, water treatment, and metallurgy. In short, it delivers intelligent control, robust protection, and long-term reliability.