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CKD Series
The CKD Series Smart Multi-turn Electric Valve Actuator is an integrated intelligent terminal control device designed exclusively for multi-turn valves such as gate valves and globe valves. Engineered with advanced SoC (System-on-Chip), digital sensing, and fieldbus technologies, this actuator delivers precise and reliable valve control across industrial environments. With a torque range of 40–3000 N·m (up to 50,000 N·m with precision gearbox) and an output speed of 8–192 rpm, it meets the demands of DN10-DN600 pipelines, while its dual IP66/68 protection rating ensures uncompromised performance in harsh conditions. Compatible with Modbus, PROFIBUS, and HART protocols, it enables seamless integration with PLC/DCS automation systems, supporting both local and remote control for enhanced operational flexibility.
Infrared (IR) and Bluetooth wireless communication enable complete parameter configuration—including torque limits, speed profiles, and control modes—without opening the sealed enclosure. This eliminates safety risks of traditional setup procedures, maintains Ex d II C T6 explosion-proof integrity, and protects the sealing surface. No screwdrivers or opened covers are required, making it safe for operation even in Zone 1 hazardous atmospheres.
A high-visibility, backlit LCD delivers critical operational data at a glance, including real-time torque percentage, valve position (0-100%), control mode status, fault alerts, and system clock. The multilingual support (Chinese/English/numeric/icon) ensures global deployment, while the backlit screen guarantees readability in complete darkness, accessible to non-professional operators.
Non-volatile memory retains complete operational history for 100 years, even without power, storing up to 1000 time-stamped records of valve movements, manual operations, and fault events. Users can query detailed logs directly via the local display or wirelessly access data via Bluetooth for parameter editing, batch configuration changes, and intelligent performance analysis. A full audit trail ensures regulatory compliance and predictive maintenance capability.
Continuous online diagnostics monitor motor load, temperature, current signatures, and power quality in real-time. The system provides 27 integrated safety functions, including phase sequence correction, EMI immunity, torque limiting, surge suppression, and lightning protection. Predictive algorithms detect anomalies before damage occurs, triggering instantaneous protective responses to ensure zero-failure operation in critical applications.
Certified for the world's harshest industrial environments, the dual IP66/68 rating ensures complete dust ingress protection and sustained submersion resistance. Ex d II C T6 explosion-proof certification enables safe operation in Zone 1 hazardous areas with hydrogen-based atmospheres. The actuator tolerates extreme temperatures from -60°C to +120°C (arctic cold to desert heat) without performance degradation. Its high-strength die-cast aluminum alloy housing, with pickling phosphating and electrostatic spraying, withstands 500+ hours of salt spray corrosion, suitable for coastal and chemical environments.
Equipped with an 18-bit multi-turn absolute encoder, the actuator achieves ±0.88° positioning resolution and ≤0.5% repeat positioning error for accurate valve opening control. Closed-loop control logic ensures ≤0.3-second response to 4-20mA analog signals or bus commands, adapting quickly to dynamic working condition adjustments.
Parameters | Description |
Power supply type | AC 220V (50/60Hertz) / AC 380V (50/60 Hertz) optional |
Torque range | Direct installation torque: 40~3000 N·m; with gearbox, maximum torque up to 50,000 N·m;During ordering, the specific model is selected by the manufacturer based on torque and speed requirements. |
Control type | Optional：hard wiring、analog signal、fieldbus（MODBUS、FF、HART、PROFIBUS-DP） |
sheathing material | cast aluminum alloy |
levels of protection | The standard is IP68; others can be customized. |
ambient temperature | ※Standard: -30℃ ~ +70℃ |
external corrosion protection | ※Standard coating: pickling and phosphating + surface electrostatic powder spraying; |
double seal protection | The control section is isolated from the junction box to protect electronic components. |
Explosion-proof rating: | Ex d IIB T4 Gb、Ex db IIC T4 Gb、Ex tb ⅢC T130℃ Db |
Motor Technology | Totally enclosed non-air-cooled AC squirrel cage motor; Insulation class F (Class H customizable); |
motor duty | ※Motor with S4 duty (suitable for periodic starting conditions); |
gear drive | Self-locking at all speeds |
Handwheel | Does not rotate during electric operation; equipped with automatic clutch; torque complies with GB/T 28270 standard. |
output flange | ISO 5210/GB 12222；optional special flange |
lubricating oil | Lifetime effectiveness; no periodic maintenance required |
Supply type | Three-phase/single-phase optional; the maximum voltage for three-phase power supply is 690V; 50/60Hz |
cable entry | Standard: 1×M48×2 + 2×M33×2; Explosion-proof type: 1×NPT1.5" + 2×NPT1" (can be increased); Customizable; Sunflower terminal block |
Setting | Infrared/Pressure communication (Bluetooth optional); Parameters stored in non-volatile memory (with password protection); Configurable via remote display/programmer |
On-site knob | Tool-free setting; Local/Remote/Stop mode selection; Electrically operable in local mode |
EC instruct | Comply with 2004/08/EC (Electromagnetic Compatibility Directive) and 2006/95/EC (Low Voltage Directive); harmonized standards such as EN 61000 are applicable. |
CKD Series Electric Actuators (380VAC/50HZ): On-Off type or modulating (non-Frequent) type
Model | Rated Torque (Nm) | Speed (rpm) | Motor Power (kW) | Rated Current (A) | Flange (ISO5210) |
CKD10 | 100 | 24 | 0.25 | 2.5 | F10 |
80 | 36 | 0.3 | 2.6 | ||
60 | 48 | 0.4 | 2.7 | ||
CKD16 | 160 | 24 | 0.4 | 2.6 | F14 |
120 | 36 | 0.45 | 3 | ||
100 | 48 | 0.5 | 3.5 | ||
70 | 72 | 0.65 | 4.2 | ||
50 | 96 | 0.8 | 4.8 | ||
CKD25 | 250 | 24 | 0.63 | 2.8 | F14 |
230 | 36 | 0.83 | 3.3 | ||
200 | 48 | 1 | 3.6 | ||
180 | 72 | 1.36 | 4.1 | ||
160 | 96 | 1.6 | 4.5 |
Note: For complete performance data (including 220VAC models and modulating frequent adjustment types), please contact our technical team.
Our smart multi-turn electric valve actuator adheres to strict quality control standards, holding ISO certification and international authoritative certifications including ATEX explosion-proof (Ex d II C T6) and SIL functional safety. The whole machine comes with an 18-month warranty, while core components (motor, controller) enjoy 24-month coverage, complemented by lifelong maintenance services. All key electronic components meet military-grade standards, with a built-in backup battery offering 8-year service life for uninterrupted valve position monitoring during power outages. Each unit undergoes rigorous testing, including 500-hour salt spray corrosion resistance and 80,000+ hours of trouble-free operation verification.
• Oil & Gas & Petrochemical: Applied in crude oil extraction, refining units, and pipeline transportation systems, withstanding high-temperature, high-pressure, and corrosive conditions.
• Power Generation: Controls valves in boiler feed water, steam pipelines, and denitrification systems for thermal, nuclear, and hydropower plants.
• Water Treatment & Municipal Engineering: Regulates gate valves and butterfly valves in waterworks, sewage treatment plants, and urban water supply/drainage networks.
• Metallurgy & Manufacturing: Suitable for steelmaking furnaces, rolling production lines, and cement kilns, resisting dust and vibration.
• Pharmaceutical & Food Processing: Complies with hygienic standards for sterile valve control in reactors and processing equipment, supporting cleaning verification.
How to select the right smart multi-turn electric actuator model?
Provide valve parameters (type, required torque), working conditions (pressure, temperature), and control requirements (signal type, feedback needs). Our technical team will assist with model matching based on your specific application.
What is the warranty period and after-sales support?
We offer an 18-month warranty for the whole machine and 24-month warranty for core components. Free installation videos, remote guidance, and on-site support (for bulk purchases) are available. Lifelong maintenance services ensure long-term operational reliability.
Can the actuator adapt to extreme environments?
Yes. It supports extreme temperatures from -60°C to +120°C. The IP66/68 protection and corrosion-resistant coating make it suitable for humid, dusty, and corrosive industrial settings, with Ex d II C T6 explosion-proof certification for hazardous areas.
What is the delivery lead time?
Standard models are delivered within 28-30 working days, while customized models (special torque, temperature range, or certifications) require 30-45 working days.
This product combines intelligent control, durability, and safety, making it the preferred industrial electric actuator for global customers in power, petrochemical, water treatment, and other sectors. Contact us for customized solutions tailored to your operational needs.
WhatsApp: +8619952453579
Email: hengchuncn@gmail.com
