Description
1. Overview of Explosion-Proof Electric Actuator
VTON explosion-proof electric actuators combine advanced safety features and reliable performance for rotary valves. They are designed to operate in hazardous environments containing flammable or explosive gas mixtures, ensuring safe and precise control of valve operations. With support for industrial control signals, these actuators provide excellent automation capabilities for industries such as oil and gas, chemical processing, and power generation.
2. Technical Parameters
- Casing Material: Aluminum alloy, corrosion-resistant with anodized and polyester powder coating
- Ingress Protection: IP67 (optional IP68), NEMA 4 and 6
- Power Supply:
- Standard: 220V AC single-phase
- Optional: 110V AC single-phase; 380/440V AC three-phase; 50/60Hz ±10%
- Torque Switch: 1 x Open/Close SPDT, 250V AC, 10A
- Motor Type: Squirrel cage asynchronous motor
- Limit Switch: 1 x Open/Close SPDT, 250V AC, 10A
- Auxiliary Limit Switch: 1 x Open/Close SPDT, 250V AC, 10A
- Travel Range: 90° ± 10°
- Fail-Safe Protection: Built-in thermal protection (Open: 120°C ± 5°C, Close: 97°C ± 15°C)
- Manual Operation: Mechanical handwheel (optional handwheel available)
- Self-Locking Mechanism: Worm and gear system for stability
- Environmental Temperature: -20°C to +70°C
- Dryer: 7-10W (110/220V AC)
- Connection Ports: 2 x PF 3/4″
- Vibration Resistance: X, Y, Z directions; 10g, 0.2~34 Hz for 30 minutes
- Lubrication: EP-type aluminum-based grease
- Humidity Resistance: Up to 90% RH
3. Key Features
- Durable Construction:
- High-quality aluminum alloy casing with anodized finish for lightweight and corrosion resistance.
- Polyester powder coating ensures protection in extreme environments.
- Enhanced Safety:
- Torque and limit switches for overload protection and precise position control.
- IP67-rated waterproof design with optional IP68 upgrade for underwater or extreme conditions.
- Advanced Functionality:
- Integrated thermal protection prevents overheating.
- Self-locking worm and gear system for reliable operation and stability.
- User-Friendly Design:
- Manual override via mechanical handwheel for emergency operation.
- External adjustment bolts for convenient travel limit settings.
- Moisture Protection:
- Built-in dryer prevents condensation and protects internal components.
- Flexible Installation:
- ISO5211-compliant mounting for compatibility with various valve types.
- Vertical or horizontal installation options.
4. Applications
VTON explosion-proof electric actuators are suitable for:
- Oil and gas pipelines
- Petrochemical processing
- Power plants
- Chemical and hazardous environments
- Water treatment facilities
5. Selection Guidelines
To choose the appropriate explosion-proof electric actuator:
- Determine the valve torque requirements and add a safety margin based on the medium.
- Match the actuator’s power supply and control signals with the application environment.
- Consider IP68 protection for submerged or high-moisture conditions.
