1. Definition & Working Principle
The electric valve actuator is a key automated control accessory for industrial valves. It converts electric energy into mechanical motion to open, close or regulate ball valves, butterfly valves and globe valves. It accepts 4-20mA/0-10V or switch signals from PLC/DCS systems to realize remote automatic pipeline parameter control.
2. Main Product Classification
- Motion Type: Part-turn (90°), Multi-turn, Linear electric actuator
- Control Mode: On-off type; Modulating proportional type
- Rated Voltage: AC220V, AC380V, DC12V, DC24V
- Protection Type: IP65/IP66 standard type; Explosion-proof type for hazardous areas
3. Core Structural Composition
It mainly consists of drive motor, reduction gear set, manual override handwheel, limit switch and signal feedback module. It supports both local manual operation and remote automatic control.
4. Industrial Application Scenarios
- Protection Grade: IP65 / IP66
- Control Signal: 4-20mA analog signal, dry contact signal
- Working Condition: -20℃~+70℃, waterproof, dustproof, anti-vibration
- Safety Function: Overheat & overload protection, power-off reset
Widely used in water treatment, petrochemical, natural gas, HVAC, pharmaceutical and food processing pipelines for automatic flow control, replacing manual valve operation.
5. Industry Advantage & Market Trend
Compared with pneumatic actuators, it requires no auxiliary air source, features simple installation and low maintenance cost. Intelligent digital electric actuators are the mainstream development trend of valve automation industry.
6. Matching Standard Rule
Most products adopt ISO5211 international mounting standard, which can be installed on standard industrial valves without extra adapters.
