Description
Introduction of Motorized Rotary Valve Actuator BJ250‑Q1
Motorized Rotary Valve Actuator BJ250‑Q1 is a heavy‑duty intelligent rotary drive for large‑size and high‑load quarter‑turn valves. Specifically, it provides strong and stable output torque to drive large ball valves, butterfly valves, and dampers smoothly. As a result, users get reliable valve action even under heavy working conditions or extreme pressures. Moreover, its optimized structure design improves torque density while maintaining a remarkably compact footprint. Consequently, engineers can install this actuator in tight spaces without sacrificing raw power or durability.
Furthermore, this actuator integrates complete intelligent functions for enhanced operational safety. For instance, it offers self‑diagnosis, real‑time status monitoring, and multi‑signal feedback to operators. It also includes fault alerts and predictive maintenance warnings for proactive intervention. Hence, it supports multiple control methods and flexibly matches different system architectures. For example, users can choose from basic local control up to advanced networked control. This flexibility allows seamless integration with existing DCS, PLC, or SCADA systems without major modifications.
In addition, the BJ250‑Q1 uses high‑quality motors and gear transmission systems for superior long-term performance. Therefore, it achieves low energy consumption, low noise levels, and an extended service life. The robust gearing also minimizes backlash and wear over thousands of operating cycles. Hence, this actuator becomes an ideal choice for heavy‑duty valve automation in critical applications. Industries such as oil refineries, power plants, water treatment facilities, and chemical complexes rely on it. These sectors demand consistent, fail‑safe operation to maintain production uptime and protect valuable equipment.
Parameters of Motorized Rotary Valve Actuator BJ250‑Q1
- Power Supply: Three-phase: 380Vac ±10%, 50Hz ±2%; Single-phase: 220Vac ±10%, 50Hz ±2%; Optional Power: AC220～660V, 50/60Hz (Compatible with both three-phase 3-wire and 4-wire configurations. Special power requirements must be specified during ordering)
- Input Signal: DC4～20mA (Regulating type exclusive); DC24V, AC220V, or dry contact (passive)
- Output Signal: 4 groups of field-configurable output contacts; 1 set of remote status output contacts; 1 set of fault alert output contacts
- Output Contact Capacity: 250Vac/5A
- Output Current Load Impedance: ≤750Ω
- Protection Level: IP65 (IP67 available as option)
- Insulation Grade: Class F
- Ambient Temperature Range: -20℃ to +60℃ (Extended range: -30℃ to +70℃ optional)
- Relative Humidity: ≤95% (at 25℃)
- Operation Mode: Intermittent duty, 10 minutes
- Lubrication: Premium grease
- Installation: Mounting flange conforms to ISO5211:2017 (GB/T12223-2023) standard. Custom flange designs available per client specifications
Motorized Rotary Valve Actuator BJ250‑Q1
| 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 | 2500 | 370 | 1.7 | 55 | 348 | 35 |
| Single-phase | 0.5 | 2500 | 550 | 3.15 | 55 | 348 | 35 |
Absolute Encoder Position System
The high‑precision absolute encoder is equipped inside BJ250‑Q1 as the core position detection component. It captures angular data accurately in real time, with excellent stability and no position drift. Even after long‑term operation or power failure, the position information remains accurate, avoiding repeated calibration and homing operations.
Moreover, this encoder provides fast signal response, supporting precise partial‑stroke control and quick action response. It greatly enhances the control performance of the actuator, making it suitable for both on‑off and high‑precision regulating applications.
Non‑Intrusive Operating Concept
BJ250‑Q1 fully adopts a non‑intrusive operating concept for maximum convenience. Specifically, it realizes cover‑free setup, calibration, and inspection without opening the housing. As a result, users can adjust all key parameters via external operation components. These parameters include stroke limits, torque values, control logic, and signal parameters. Consequently, operators avoid exposing internal circuits during routine adjustments or troubleshooting.
Furthermore, this thoughtful design protects internal electrical components from environmental interference effectively. Hence, it reduces the risk of misoperation caused by moisture, dust, or accidental contact. This also improves overall safety when working in hazardous or explosive areas. In addition, the cover‑free approach speeds up on‑site commissioning and daily maintenance tasks significantly. Therefore, maintenance teams can complete parameter changes in minutes rather than hours. As a result, the design effectively reduces labor costs and downtime over the actuator’s lifetime. Ultimately, users benefit from faster turnaround and fewer service calls.
Dot‑Matrix LCD Human‑Machine Interface
The dot‑matrix LCD human‑machine interface provides clear and comprehensive operating information for BJ250‑Q1. It displays real‑time valve position, running status, fault alarms, and signal values in an intuitive way, helping users quickly understand equipment conditions.
In addition, the interface supports easy parameter setting and status query, with friendly logic and simple operation. It helps on‑site staff complete debugging and troubleshooting efficiently, reducing working difficulty and improving maintenance efficiency.
Heavy‑Duty Application & Reliable Performance
Motorized Rotary Valve Actuator BJ250‑Q1 is specially designed for heavy‑demand applications, such as large‑scale petrochemical plants, thermal power stations, metallurgical systems, water supply projects, and environmental protection facilities. It can withstand harsh conditions including high vibration, large temperature changes, and corrosive atmospheres.
Furthermore, its robust structure, complete protection functions, and stable performance ensure long‑term reliable operation, reducing failure rate and maintenance frequency. It provides strong support for the safe and stable operation of key process systems.
Related Product : BD‑C8 Multi‑turn Intelligent Electric Actuator
BD‑C8 multi‑turn intelligent electric actuator represents an upgraded version of high‑performance intelligent products, adopts IP68 high‑protection dual‑seal design, supports split installation to separate the control unit from the actuator body, and adapts to high‑temperature and high‑vibration harsh working conditions. It uses BM18 multi‑turn absolute encoder patented technology, realizes non‑contact position and torque detection, does not need a battery to maintain valve position data after power failure, and always keeps the position accurate with high control accuracy and long service life.
In addition, this actuator adds Bluetooth communication, power‑failure LCD display, and operation data recording functions on the basis of basic models, supports wireless parameter setting and data download, and realizes fault self‑diagnosis and status indication. It provides complete control interfaces and bus expansion options, can realize two‑wire control, intermittent operation, and fieldbus digital control, and matches standard connection flanges to adapt to various valve connections. With strong environmental adaptability, comprehensive protection functions, and intelligent human‑computer interaction, it becomes an ideal choice for high‑requirement working conditions in modern industrial automation systems.