Description

Introduction of Intelligent Electric Actuator BJ30-Q3 Quarter-turn Series

The Intelligent Electric Actuator BJ30-Q3 Quarter-turn Series delivers 300 N.m of reliable torque for quarter-turn valve automation. Operators use it to control ball valves, butterfly valves, and dampers across demanding industrial sites. It handles opening, closing, and modulating duties with equal proficiency under continuous duty cycles. Its robust design withstands repeated cycles without compromise or excessive wear. Consequently, it ensures consistent positioning performance shift after shift in harsh environments. Moreover, this actuator integrates advanced digital controls into its compact weatherproof housing. These controls streamline commissioning and reduce system downtime. In addition, engineers value the straightforward setup and proven long-term reliability.

The BJ30-Q3 Quarter-turn Series supports multiple fieldbus protocols for flexible system integration. Specifically, it handles Modbus, Profibus-DP, HART, DeviceNet, and Foundation Fieldbus networks. Consequently, facility operators gain seamless integration with distributed control systems across the plant floor. Additionally, the actuator accepts 4-20 mA analog control signals from traditional controllers. These signals work alongside digital bus commands for maximum operational flexibility. Meanwhile, its power input accepts 380 Vac three-phase supplies with ease. It also handles 220 Vac single-phase sources reliably. Thus, this actuator accommodates diverse power infrastructures without external converters.

The Intelligent Electric Actuator BJ30-Q3 Quarter-turn Series features certified explosion-proof protection for hazardous locations. Its flameproof rating meets Ex db IIB T4 Gb for explosive gas atmospheres. It also achieves Ex tb IIIB T130°C Db certification for combustible dust environments. Furthermore, an IP67 weatherproof enclosure shields all internal components from contamination. This enclosure blocks moisture ingress and particulate intrusion under outdoor conditions. A rugged cast-aluminum housing provides additional durability with natural corrosion resistance. Additionally, the emergency shutdown function brings processes to a safe state during critical events. Plant engineers trust these protection features for safety-critical valve automation. In short, the BJ30-Q3 delivers uncompromising reliability in hazardous industrial locations.

Intelligent Electric Actuator BJ30-Q3 Quarter-turn Series Specifications

• Power supply: Three-phase: 380Vac ±10%, 50Hz ±2%; Single-phase: 220Vac ±10%, 50Hz ±2%. Optional power supply: AC220–660V, 50/60Hz (specify when ordering).
  Ambient temperature: -40℃ to +70℃.
• Relative humidity: ≤90% (at 20±5℃).
• Operating conditions: Explosion-proof type suits IIA/IIB T1-T4 explosive gas environments (Zones 1/2) and IIIA/IIIB T130℃ explosive dust environments (Zones 21/22); avoid flammable, explosive, or highly corrosive media.
• Motor duty: Short-time duty, 15 minutes. Insulation Class: Class F.
• Anti-corrosion coating: Housing adopts aluminum alloy with high-temperature epoxy baking paint for enhanced rust resistance.
• Torque: Rated torque 300N.m, maximum torque approx. 450-540N.m (1.5-1.8 times rated torque).
• Output speed: 0.5 rpm.
• Protection class: IP67, optional IP68.
• Control modes: Supports local control, remote on-off control, remote analog control (regulating type only), ESD control, two-wire control, and fieldbus control (optional).
• Key features: Non-intrusive parameter setting, Chinese dot-matrix LCD display, phase sequence self-correction, manual-electric non-disturbance switching, and comprehensive fault self-diagnosis.

  

The Working Principle of the Electric Actuator

The BJ30-Q3 Intelligent Electric Actuator first receives control signals from a system. It uses these signals to start its built-in electric motor. The motor works with a precision gearbox inside the actuator. This gearbox adjusts speed and torque for valve operation. The BJ30-Q3Intelligent Electric Actuator then sends motion to the valve stem. It turns the stem through a 90-degree range for quarter-turn valves. Users can set operation parameters via its non-intrusive function. This Intelligent Electric Actuator also checks its status in real time. It uses a dot-matrix LCD to show working data clearly. The actuator stops automatically when it reaches set positions. This ensures safe and accurate valve control every time.

Non-Intrusive Design

LCD Display and User Interface

Application Scenarios

The BJ30-Q3 quarter-turn electric actuator is widely utilized in various industrial sectors including municipal water treatment, petrochemical refineries, power plants, mining operations and chemical facilities. Certified explosion-proof, it safely operates in hazardous areas and precisely controls butterfly valves, ball valves and slurry valves with stable torque output and high positioning accuracy. It functions reliably under tough working conditions and extreme temperatures from -30°C to 70°C, and also performs excellently in HVAC systems and district heating networks. Thanks to its sturdy structure and durable performance, this actuator provides long-term, dependable valve automation to guarantee overall operational safety and efficiency across diverse application scenarios.