Views: 0 Author: J-VALVES Publish Time: 2025-01-21 Origin: Site
• API 6D: Widely recognized for pipeline valves, API 6D specifies requirements for ball valves used in the oil and gas industry. It covers design, manufacturing, and testing to ensure reliability and safety.
• ISO 10497: This international standard specifies requirements for ball valves, including materials, dimensions, and testing protocols. It ensures compatibility and interchangeability across different manufacturers.
• GB/T 12237: A Chinese national standard for ball valves, GB/T 12237 covers design, manufacturing, and testing requirements for industrial applications, ensuring reliability and safety.
• Torque Requirements: Pneumatic actuators must provide sufficient torque to operate the ball valve. The required torque depends on factors such as pressure, temperature, and fluid properties. For example, non-lubricated dry gases may require a 60% safety factor, while clean, lubricated media may require only a 20% safety factor.
• Response Speed: Pneumatic actuators offer quick response times, making them suitable for applications requiring rapid valve operation. They are also simpler in design compared to electric actuators.
• Environmental Conditions: Pneumatic actuators are preferred in environments where electrical power is unreliable or where strict explosion-proof requirements exist.
• Determine Valve Torque: Calculate the required torque based on the valve size, pressure, and fluid properties. Use appropriate safety factors as recommended by standards.
• Match Actuator Output: Ensure the pneumatic actuator's output torque exceeds the valve's operating torque to prevent operational issues.
• Consider Environmental Factors: Choose actuators with appropriate materials and coatings to withstand corrosive or harsh environments.
• Power Requirements: Electric actuators require a reliable power supply. They are suitable for applications where electrical power is readily available and where precise control is needed.
• Control and Integration: Electric actuators can be easily integrated with control systems, providing precise positioning and feedback. They are ideal for applications requiring automation and remote control.
• Maintenance: Electric actuators generally require more maintenance compared to pneumatic actuators. Regular inspection and lubrication are necessary to ensure reliable operation.
• Assess Power Availability: Ensure a stable power supply is available at the installation site.
• Evaluate Control Needs: Determine the level of control required for your application. Electric actuators offer advanced control features, making them suitable for complex systems.
• Plan for Maintenance: Factor in the maintenance requirements of electric actuators to ensure long-term reliability.
