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

1. Durable Construction:
   • High-quality aluminum alloy casing with anodized finish for lightweight and corrosion resistance.
   • Polyester powder coating ensures protection in extreme environments.
2. 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.
3. Advanced Functionality:
   • Integrated thermal protection prevents overheating.
   • Self-locking worm and gear system for reliable operation and stability.
4. User-Friendly Design:
   • Manual override via mechanical handwheel for emergency operation.
   • External adjustment bolts for convenient travel limit settings.
5. Moisture Protection:
   • Built-in dryer prevents condensation and protects internal components.
6. 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:

1. Determine the valve torque requirements and add a safety margin based on the medium.
2. Match the actuator’s power supply and control signals with the application environment.
3. Consider IP68 protection for submerged or high-moisture conditions.

Explosion-Proof Electric Actuator最先出现在USA VTON GROUP。

VTON on-off electric actuators provide efficient and reliable control for rotary valves and similar devices. Designed for remote opening and closing, these actuators are widely used in industries such as petrochemicals, water treatment, shipbuilding, and power generation. They support seamless integration with automated systems, offering precise position feedback and robust performance under challenging conditions.

Applications:

• Petrochemical processing
• Water and wastewater treatment
• Power generation
• Shipbuilding and HVAC systems
• Pulp and paper industries

2. Technical Parameters

• Maximum Output Torque: 200-400Nm
• Action Time (90°): 30 seconds
• Motor Type: Squirrel cage asynchronous motor
• Power Supply:
  • Single-phase: 110/220V AC
  • Three-phase: 380/440V AC (50/60Hz, ±10%)
• Control Signals: Input/output 4-20mA
• Limit Switches:
  • Standard: 2 x ON/OFF SPDT (250V AC, 10A)
  • Auxiliary: 2 x ON/OFF SPDT (250V AC, 10A)
• Angle of Travel: 90° ± 10° (Optional: 180° or 270°)
• Overheat Protection: Built-in, activates at 120°C ± 5°C, resets at 97°C ± 5°C
• Manual Operation: Mechanical handwheel
• Self-Locking Device: Worm gear mechanism
• Environmental Temperature: -25°C to +70°C (optional: -30°C, -40°C, -60°C)
• Ingress Protection: IP67 (Optional: IP68)

3. Key Features

1. Durable Construction: Aluminum alloy housing with anodized coating and polyester powder finish for excellent corrosion resistance.
2. Precision Control: Supports remote valve operation with accurate position feedback.
3. Advanced Safety Features:
   • Built-in overheat protection prevents motor damage.
   • Dual mechanical and electronic limit switches ensure reliable operation.
4. Self-Locking Mechanism: Worm gear drive ensures stability and prevents reverse movement.
5. Flexible Mounting Options: ISO5211/DIN3337 compliant base allows vertical or horizontal installation.
6. Moisture Protection: Equipped with a 30W anti-condensation heater to prevent internal humidity buildup.
7. User-Friendly Design:
   • Manual handwheel for emergency operation
   • Clear position indicator with a convex lens for better visibility

4. Selection Guidelines

When choosing an on-off electric actuator:

1. Assess the torque requirements of the valve and add a safety margin based on the operating medium.
2. Match the actuator’s power supply, control signals, and environmental tolerances to your application.
3. Opt for IP68-rated models for high moisture or submerged environments.

On-Off Electric Actuator最先出现在USA VTON GROUP。

VTON modulating electric actuators are versatile devices designed for controlling rotary valves such as butterfly, ball, and damper valves with 0° to 270° movement. They are widely used in industries such as petrochemicals, water treatment, shipbuilding, and power generation. Powered by single-phase or three-phase AC power, they accept 4-20mA or 0-10V control signals for seamless integration into automated systems.

Applications:

• Oil and gas pipelines
• Chemical processing plants
• Water and wastewater treatment
• Power generation
• HVAC and shipbuilding

2. Technical Parameters

• Maximum Output Torque: 200-400Nm
• Action Time (90°): 30 seconds
• Motor Type: Squirrel cage asynchronous motor
• Power Supply:
  • Single-phase: 110/220V AC
  • Three-phase: 380/440V AC (50/60Hz, ±10%)
• Control Signals: Input/output 4-20mA
• Limit Switches:
  • Standard: 2 x ON/OFF SPDT (250V AC, 10A)
  • Auxiliary: 2 x ON/OFF SPDT (250V AC, 10A)
• Angle of Travel: 90° ± 10° (Optional: 180° or 270°)
• Overheat Protection: Built-in, activates at 120°C ± 5°C, resets at 97°C ± 5°C
• Manual Operation: Mechanical handwheel
• Self-Locking Device: Worm gear mechanism
• Environmental Temperature: -25°C to +70°C (optional: -30°C, -40°C, -60°C)
• Ingress Protection: IP67 (Optional: IP68)
• Weight: Customizable based on specifications

3. Key Features

1. Durable Construction: Hard aluminum alloy housing with anodized coating and polyester powder finish, offering high corrosion resistance.
2. High Precision Control: Accepts 4-20mA or 0-10V signals for accurate valve positioning.
3. Integrated Safety Features: Built-in overheat protection, self-locking worm gear mechanism, and dual limit switches ensure reliable operation.
4. User-Friendly Design:
   • Manual handwheel for emergency operation
   • Position indicator with a convex lens for clear visibility
   • Dual installation options (vertical or horizontal)
5. Moisture Protection: Equipped with a 30W anti-condensation heater to maintain internal dryness.
6. Flexible Mounting: ISO5211/DIN3337 standard-compliant base for easy installation on a wide range of valves.

4. Selection Guidelines

When selecting a modulating electric actuator:

1. Determine the torque requirements of the valve and add a safety margin based on the operating medium.
2. Match the actuator’s torque, control signals, and environmental conditions to your application requirements.
3. For applications with extreme temperatures or hazardous environments, choose models with enhanced protection (e.g., IP68 or extended temperature ranges).

Modulating Electric Actuator最先出现在USA VTON GROUP。

VTON explosion-proof electric valve actuators are robust, modular devices engineered to control valve operations in challenging environments with flammable gases or volatile mixtures. The actuators support precise positioning with a 0°~270° rotation range, customizable to specific requirements. Designed with advanced safety and automation features, they are ideal for on/off and modulating control across various industries.

Applications:

• Petrochemical industries
• Water treatment plants
• Power generation
• Paper manufacturing
• Shipbuilding
• HVAC systems

2. Technical Parameters

• Model: V-OHQ Series
• Material: Hard aluminum alloy with anodized coating and polyester powder for corrosion resistance
• Explosion-Proof Certification: Exd ⅡCT5 Gb
• Protection Grade: IP67 (optional IP68)
• Rotation Range: 0°~270°
• Torque Output: Up to 2000 N·M
• Power Source:
  • AC: 380V / 220V / 110V
  • DC: 24V / 110V
• Control Signals: 4-20mA current or 0-10V DC voltage
• Environment Temperature:
  • Standard: -20℃ ~ +80℃
  • High Temperature: -20℃ ~ +150℃
  • Low Temperature: -40℃ ~ +80℃
• Standards: ISO5211 and DIN3337 compliant

3. Key Features

1. Explosion-Proof Design: Certified for use in hazardous environments with flammable gases and volatile mixtures.
2. Robust Construction: Hard aluminum alloy body with high corrosion resistance, suitable for extreme conditions.
3. Precision Control: Supports accurate valve positioning for both on/off and modulating control.
4. Built-In Safety Features: Overload protection, overheat protection, and dual mechanical/electronic limit switches ensure reliability.
5. Self-Locking Mechanism: Prevents reverse motion, ensuring stable operation.
6. User-Friendly Design:
   • Manual handwheel for emergency operation
   • Position indicator for real-time valve status
   • LCD display for valve position during operation
7. Flexible Installation: Compatible with international standards, allowing vertical or horizontal mounting.
8. Intelligent Control Module: Advanced MCU and metal-enclosed design improve heat resistance and anti-interference capabilities.

4. Selection Guidelines

Choose VTON electric actuators based on valve torque requirements, environmental conditions, and desired control signals. For extreme conditions or explosive environments, ensure the model meets safety certifications and pressure/temperature tolerances.

Explosion-Proof Electric Valve Actuator最先出现在USA VTON GROUP。

The Scotch Yoke pneumatic actuator is a quarter-turn piston-driven actuator with a compact, durable design. It is specifically engineered for valves requiring 90° rotation, such as butterfly, ball, and plug valves. The actuators are available in single-acting (spring-return) and double-acting configurations to suit different operational requirements:

• Single-Acting Actuator: Automatically resets to the initial position during power or air loss, ensuring fail-safe operation.
• Double-Acting Actuator: Maintains the valve position during air loss, suitable for applications where reset is not required.

Applications:

• Industrial automation systems
• Oil and gas pipelines
• Chemical processing plants
• Water and wastewater treatment

2. Technical Parameters

• Material: Aluminum alloy, carbon steel, ductile iron
• Actuator Type: Single-acting or double-acting
• Rotation Range: 0° ~ 90° (±5° adjustable)
• Air Consumption: 4.35L
• Weight: 160Kg
• Air Supply Pressure: 0.4 ~ 0.8MPa
• Temperature Range:
  • Standard: -20℃ ~ +80℃
  • High Temperature: -20℃ ~ +150℃
  • Low Temperature: -40℃ ~ +80℃
• Certifications: SIL3, ISO, CE, IP67 protection grade
• Connection Standard: ISO 5211, VDI/VDE3845 NAMUR compliant
• Accessories: Positioners, filter regulators, amplifiers, pneumatic control valves, limit switches

3. Key Features

1. Versatile Applications: Compatible with 90° rotation valves, including ball, butterfly, and plug valves, for on/off or flow regulation control.
2. Optimized Torque Design:
   • DRG01 Series: Symmetrical design delivers maximum torque at 0° and 90°, ideal for ball valve torque profiles.
   • DRG02 Series: Asymmetric design provides higher starting torque, matching butterfly valve torque characteristics.
3. Durability: Hard chrome plating on the cylinder ensures extended service life. High-frequency quenched and ground tracks and self-lubricating sliders offer permanent usability.
4. Comprehensive Accessories: Includes manual handwheel, hydraulic manual override, limit switches, solenoid valves, positioners, and other control components.
5. Modular Design: Simplifies installation, maintenance, and storage, offering maximum flexibility and efficiency.

Scotch Yoke Pneumatic Actuator最先出现在USA VTON GROUP。

Double-acting pneumatic actuators operate by using air pressure to control valve opening and closing. When air is supplied to one side, the valve opens; when air is supplied to the opposite side, the valve closes. Unlike single-acting actuators, double-acting models rely on air pressure rather than springs for resetting, making them suitable for applications where maintaining position during air loss is critical.

2. Working Principle

When air enters the middle chamber between the pistons through air port (2), the pistons move outward, discharging air from both ends via air port (4). This action rotates the output shaft counterclockwise. Conversely, when air enters both ends of the cylinder through air port (4), the pistons move inward, discharging air from the middle chamber through air port (2), rotating the output shaft clockwise.

3. Technical Parameters

• Model: V-AT
• Body Material: Aluminum Alloy
• Air Supply Pressure: 2.5 ~ 8 Bar
• Switching Time: 0.5 ~ 8 seconds
• Torque Range: 3 ~ 13,000 Nm
• Compatible Valves: Butterfly valves, ball valves
• Accessories: Positioners, limit switches, air treatment units

4. Product Features

1. Precision Control: Utilizes air pressure for accurate and stable valve operation.
2. Durable Construction: Aluminum alloy housing provides strength and resistance to corrosion.
3. High Torque Output: Designed for handling large valves and high-pressure systems.
4. Versatile Compatibility: Supports butterfly valves, ball valves, and a variety of industrial accessories.
5. Stable in Air Loss Conditions: Maintains valve position when the air supply is lost, ensuring safety and reliability.

5. Selection Guidelines

When selecting a double-acting actuator:

1. Determine the required torque for the valve and apply a safety margin:
   • Water vapor or non-lubricated liquid: +25%
   • Non-lubricated slurry: +30%
   • Non-lubricated dry gas: +40%
   • Non-lubricated particle powder: +60%
   • Clean, low-friction lubricated media: +20%
2. Match the adjusted torque to the actuator’s output torque at the desired air supply pressure.

Example Selection:
For a ball valve requiring 200Nm torque with a 0.5MPa air supply and non-lubricated water vapor:

• Add 25% safety margin (200Nm × 1.25 = 250Nm).
• Use the output torque table to find a torque of 268Nm at 0.5MPa.
• Select model V-AT125.

6. Additional Information

• Action Time Testing Conditions:
  • Ambient temperature
  • 90° stroke
  • Solenoid valve with 4mm diameter and Qn flow of 400L/min
  • Air tube with 8mm inner diameter
  • Clean, dry air at 0.6MPa
  • No external load

Double-Acting Pneumatic Actuator最先出现在USA VTON GROUP。

Single-acting pneumatic actuators use air pressure to control valve operation and spring force for automatic reset when air is cut off. This design ensures fail-safe functionality, reducing risks in emergencies or air supply failures. Commonly used in hazardous environments, they are available in two configurations:

• Normally Open (NO): Opens when air is cut off, closes when air is supplied.
• Normally Closed (NC): Closes when air is cut off, opens when air is supplied.

2. Working Principle

When air pressure enters the actuator’s middle chamber, the pistons move outward, compressing the springs at both ends. This action rotates the output shaft (gear) counterclockwise. When the air supply is redirected, the springs push the pistons back to the center, rotating the shaft clockwise. The actuator’s design allows for reverse rotation by adjusting the piston assembly.

3. Technical Parameters

• Model: V-AT
• Body Material: Aluminum Alloy
• Air Supply Pressure: 2.5 ~ 8 Bar
• Switching Time: 0.5 ~ 8 seconds
• Torque Range: 3 ~ 13,000 Nm
• Compatible Valves: Butterfly valves, ball valves
• Accessories: Positioners, limit switches, air treatment units

4. Features

1. Fail-Safe Design: Automatic spring return ensures safety in air supply failure.
2. Durable Construction: Aluminum alloy housing provides strength and corrosion resistance.
3. High Torque Output: Suitable for controlling large valves with significant torque requirements.
4. Quick Response: Fast switching times ensure efficient operation.
5. Customizable Safety Margins: Torque adjustments account for various media and operating conditions, ensuring reliable performance.
6. Versatile Applications: Compatible with a wide range of valves and industrial accessories.

5. Selection Guidelines

When selecting a single-acting pneumatic actuator:

1. Calculate the required torque for the valve and add a safety margin:
   • Steam or non-lubricated liquids: +25%
   • Non-lubricated slurry: +30%
   • Dry gases: +40%
   • Non-lubricated gas with particles: +60%
   • Clean and low-friction lubricated media: +20%
2. Match the required torque to the actuator’s output torque at the air supply pressure and spring reset torque.

Example Selection:
For a butterfly valve requiring 100Nm torque, with a 0.5MPa air supply and dry gas medium:

• Add 40% safety margin (100Nm × 1.4 = 140Nm).
• Select an actuator with a spring reset torque of approximately 148Nm and an air supply torque of 158Nm.
• Based on these specifications, choose model AT145 with 9 springs.

6. Additional Information

• Action Time Testing Conditions:
  • Ambient temperature
  • 90° stroke
  • Solenoid valve with a 4mm diameter and Qn flow of 400L/min
  • Air tube with 8mm inner diameter
  • Clean and dry air supply at 0.6MPa
  • No external load
• Weight Adjustments:
  • The standard weight calculation includes 10 springs. Adjust weight based on the addition or removal of springs.

Single-Acting Pneumatic Actuator最先出现在USA VTON GROUP。