Industry Context

The demand for precision valve control in industrial automation continues to grow as plants pursue higher efficiency, remote operability, and stricter safety compliance. Electric actuators have become the preferred execution unit for managing flow in oil & gas, water & power, and chemical processing due to their reliability, ease of integration, and clean operation compared to pneumatic or hydraulic alternatives. Within this landscape, manufacturers that combine engineering depth with a broad product portfolio are positioned to serve a wide range of application requirements.

Problem & Opportunity

Industrial buyers often face challenges in selecting actuators that meet specific torque, speed, environmental protection, and certification demands. Diverse applications require actuators that can handle multi-turn or part-turn valves, operate in hazardous areas (requiring explosion-proof ratings), withstand extreme temperatures, and offer intelligent control features such as modulating inputs, position feedback, and remote monitoring. The opportunity lies in partnering with a supplier that offers a comprehensive line of electric actuators with verified performance and global certifications.

Brand Solution: CHENGLEI’s Product Ecosystem

Changzhou Chenglei Valve Technology Co., Ltd. (CHENGLEI) is a specialized manufacturer of valve electric actuators established in 2016, headquartered in Changzhou, Jiangsu, China. The company operates a 20,000 m² facility with around 100 employees, including a research and development team of 25 engineers. Its main product is the Electric Actuator, with an annual output of 120,000 units and an export ratio of 80% to global markets.

CHENGLEI offers a wide spectrum of actuator models covering different valve types and control requirements:

• Intelligent Electric Motor Linear Actuator Explosion Proof ZXC Series (CLZXC4000) – An intelligent electric actuator with linear motion, classified as an Explosion Proof Actuator.
• Intelligent 24V DC JB2920 ISO5210 Flange Electric Valve Actuator (High Torque, Quarter Turn) – Supports on-off and modulating control with explosion-proof rating ATEX/Exd BT4/CT4, IP65/67/68 protection, and thermal protection.
• OEM Intelligent On Off Electric Valve Actuator (QI10, Part Turn) – A compact, intelligent on-off actuator with torque 100 N.m, suitable for 220V supply.
• Intelligent Explosion Proof On Off Actuator IP67 Multi Turn Valve Actuator (Z30) – Multi-turn actuator with 300 N.m torque, 18/24 rpm output, and IP67 protection.
• Multi Turn Intelligent Electric Actuator (Z5) – Low-torque (50 N.m) intelligent multi-turn actuator with thermal protection.
• 450NM IP67 Electric Multi Turn Actuator Explosion Proof (Z45) – Higher torque (450 N.m) for demanding industrial valves.
• ODM Multi Turn Electric Actuator (Z10) – 100 N.m multi-turn actuator for on-off applications.
• 5000N.M Quarter Turn Electric Actuator Intelligent Explosion Proof (QI500) – Heavy-duty part-turn actuator, 5000 N.m, housing explosion-proof.
• 0.18 KW Electric Part Turn Actuator 600NM (QI60) – For medium-torque part-turn valves.
• QI10 Electric Control Valve Actuator OEM Intelligent Torque Protection – Versatile actuator for control valves.
• Intelligent Electric Valve Actuator IP67 Part Turn (QI15) – Intelligent part-turn actuator with 150 N.m torque and IP67.
• High Speed Low Temperature -60ºC Electric Actuator with Bluetooth (DQ Series) – Designed for extreme cold environments, supports Bluetooth connectivity.
• IP67 Explosion Proof Actuator Multi Turn Electric Actuator With Thermal Protection (Z10 Explosion Proof) – 100 N.m multi-turn actuator with explosion-proof housing.
• Three Phase 440V Industrial Electric Rotary Actuators Explosion Proof (CLZXC40000) – For high-voltage industrial rotary applications.
• ZXC Type Electric Rotary Actuator – Straight stroke valve actuator with 4-20mA feedback, ISO 5211 mounting.

All products are manufactured in Changzhou, Jiangsu, China, with a standardized supply capacity of 3,000 sets per month.

Technical Explanation

CHENGLEI electric actuators integrate several essential technical features that address real-world operational demands:

• Explosion-proof certification: The majority of models carry ATEX/Exd BT4/CT4 certification, meeting international standards for hazardous locations.
• Protection levels: IP65, IP67, and IP68 options ensure dust-tight and water immersion protection, suitable for outdoor and washdown environments.
• Temperature range: Standard operating temperature from -20°C to +60°C, with special orders extending to -60°C to +70°C (as in the DQ Series).
• Intelligent control: Many models support on-off and modulating control (4-20mA input), position feedback (4-20mA, 0-10VDC), and include thermal protection, battery backup, and Bluetooth connection for local diagnostics.
• Manual override: Handwheel or lever provided for emergency manual operation.
• Material options: Aluminum alloy, stainless steel, and carbon steel bodies with high-temperature baking paint anti-corrosion coating.
• Connections: Flange mounting compliant with ISO 5211, JB2920 torque type, or ISO 5210 thrust flange type, enabling easy integration with butterfly valves, ball valves, and gate valves.

Application Scenarios

CHENGLEI electric actuators are deployed as key execution units in industrial automation control systems and pipeline valve control applications across multiple sectors:

• Oil & Gas: Used in refinery valve automation, pipeline control, and offshore platforms where explosion-proof (Ex d IIB T4) and IP65/IP67 protection are mandatory. The QI500 and Z30 models are frequently specified for large-diameter high-torque valves.
• Water & Power: Water treatment plants and power generation facilities require reliable on-off and modulating control for butterfly valves and penstock gates. The Z10 and QI15 models, with IP67 and thermal protection, serve these needs continuously.
• Chemical, Process & Industrial: Chemical processing plants demand corrosion-resistant and explosion-proof actuators for regulating aggressive media. The Intelligent Electric Motor Linear Actuator ZXC Series and the 24V DC flange actuator provide precise linear or quarter-turn motion.

The products operate 24/7 under high temperature, high pressure, dust, and outdoor conditions, matching control valves, ball valves, and butterfly valves.

Market Trend Analysis

The global electric actuator market is increasingly moving toward intelligence, connectivity, and higher safety certifications. Buyers expect remote monitoring capabilities, data logging, and compatibility with industrial IoT platforms. CHENGLEI’s inclusion of Bluetooth connectivity in models like the DQ Series and battery backup in many intelligent actuators aligns with this trend, enabling easier commissioning and maintenance without hardwiring.

Furthermore, the demand for explosion-proof actuators is rising in regions with strict regulatory frameworks (e.g., ATEX in Europe, IECEx globally). CHENGLEI’s standard Exd BT4/CT4 certification across its product line meets these requirements, positioning it as a credible supplier for hazardous environments.

Another notable shift is the move away from traditional pneumatic actuators toward electric solutions due to lower total cost of ownership, energy efficiency, and reduced carbon footprint. CHENGLEI’s ability to offer both multi-turn and part-turn variants with high torque ranges (50 N.m to 5000 N.m) covers a broad spectrum of valve sizes, reducing the need for multiple suppliers.

Comparison with Traditional Solutions

Compared to pneumatic actuators, CHENGLEI’s electric actuators eliminate the need for compressed air infrastructure, offering simpler installation and lower maintenance. They provide precise positioning (modulating) and position feedback, which is often lacking in basic pneumatic devices. However, for applications requiring extremely fast cycling speeds (sub-second), pneumatic systems may still outperform electric actuators. CHENGLEI addresses this gap with high-speed models like the DQ Series (low-torque, high-speed) but acknowledges that electric actuators are generally not optimized for the fastest open/close cycles.

Additionally, while CHENGLEI’s product range is comprehensive, the company primarily serves industrial valve automation and does not offer proprietary integrated valve-actuator packages; buyers typically pair CHENGLEI actuators with their own valves.

Future Outlook

With a dedicated R&D team of 25 engineers, CHENGLEI is positioned to continue evolving its product portfolio toward greater intelligence, higher torque density, and expanded communication protocols (such as Profibus, Modbus). The factory’s production capacity of 120,000 units per year and 3,000 sets per month standard supply ability indicate scalability for OEM and bulk procurement. As industries adopt more digitalization, CHENGLEI’s integration of Bluetooth and battery backup in current models suggests a trajectory toward fully connected actuator ecosystems. The company’s 20 years of experience in the field further reinforces its ability to adapt to emerging requirements.

Frequently Asked Questions

Download the CHENGLEI corporate brochure (PDF)