Description
Overview
As a premium multi-turn electric actuator, the BD/BDM10-C8 series combines intelligent control with robust mechanical design to deliver precise valve automation. Manufactured by Bonray, this actuator integrates a dot-matrix LCD display for real-time monitoring of torque, valve position, and operating status. Its non-invasive design allows for safe, on-site adjustments using a magnetic knob or infrared setter without opening the enclosure. The actuator supports multiple control modes—including field, remote switching, analog, and fieldbus—making it highly adaptable to complex industrial environments. With protection ratings up to IP68 and explosion-proof options, the BD/BDM10-C8 ensures reliable performance in demanding applications such as power generation, petrochemicals, and water treatment.
What types of valves can the BD/BDM10-C8 multi-turn intelligent actuator operate?
This multi-turn intelligent electric actuator is compatible with a wide range of multi-turn valves, including gate, globe, and diaphragm valves. It also supports part-turn and linear applications when paired with appropriate gearboxes.
Features
Non-invasive Configuration – Magnetic knob and infrared setter enable full setup and diagnostics without opening the enclosure, preserving the IP68 seal.
High-Resolution Dot-Matrix Display – Shows valve position, torque values, and alarms in Chinese or English, with LED indicators for open/close status.
LCD display Multi-Protocol Fieldbus Ready – Supports Profibus-DP, Modbus, DeviceNet, FF, and Hart with plug-in bus cards for seamless system integration.
Comprehensive Protection – Includes torque overload, motor overcurrent, phase sequence correction, phase loss detection, and thermal motor protection.
Absolute Encoder Position Sensing – Patented BM18 multi-turn absolute encoder ensures valve position accuracy even after power loss, without batteries.
Split-Type Option (BD/BDM-C8F) – Allows remote mounting of the controller for high-temperature or high-vibration environments.
Specifications
| Parameter | Details |
|---|---|
| Power Supply | Three-phase: 380Vac ±10% 50Hz±2% (400V, 415V, 440V optional) Single-phase: 220Vac ±10% 50Hz±2% (110V, 230V optional) |
| Output Torque | 50 N·m to 3,500 N·m (up to 300,000 N·m with gearbox) |
| Output Speed | 12 rpm to 144 rpm (depending on model and phase) |
| Control Signals | 4-20mA analog, dry contact, DC24V/AC220V pulse/level, fieldbus |
| Feedback Signals | 4-20mA position feedback, configurable relay outputs (up to 4 groups) |
| Ambient Temperature | -30°C to +70°C |
| Protection Class | IP68 (2m underwater for 48 hours) |
| Explosion-proof Options | Ex db IIC T4 Gb / Ex tb IIIC T130°C Db |
| Interface Standard | ISO 5210:2017 (GB/T12222-2023) and JB2920-81 |
| Enclosure Material | Lightweight aluminum alloy with double-seal design |
Related Product: Multi-turn Intelligent Electric Actuator BD/BDM-C6
Compared to the BD/BDM-C8 intelligent electric actuator, the BD/BDM-C6 series does not offer explosion-proof functionality. Designed as a versatile multi-turn electric actuator, the BD/BDM-C6 series combines intelligent control with robust mechanical engineering to deliver reliable valve automation for a wide range of industrial applications. It features a non-invasive configuration method, allowing operators to adjust settings and perform diagnostics using a magnetic knob or infrared setter without removing the electrical cover—preserving enclosure integrity and enhancing reliability in harsh environments. The actuator is equipped with a high-resolution dot-matrix LCD display that shows real-time operating data, including torque output, valve position, and system alarms. Supporting multiple control modes such as local, remote switching, analog (4-20mA), and fieldbus protocols, the BD/BDM-C6 series provides flexible integration. With protection ratings up to IP68 and a robust double-seal design, it ensures dependable performance in power generation, petrochemical, water treatment, and other demanding industries.