Trunnion vs. Floating Ball Valve: Which is Right for You?

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When it comes to selecting the right valve for your industrial application, understanding the differences between trunnion and floating ball valves is crucial. Both types of valves are commonly used in pipelines that transport fluids, but they have distinct characteristics that make each suitable for specific applications. In this article, we will explore the differences and help you determine which valve is right for you.

What is a Trunnion Ball Valve?

A trunnion ball valve has a floating ball that is supported by trunnions on both the top and bottom sides. This structure offers several advantages:

• Stability: The trunnion design provides increased stability under high pressure.
• Low Torque Requirements: The design requires less torque to operate, making it suitable for large diameter valves.
• Long-Term Durability: Trunnion valves are known for their durability in demanding applications.

What is a Floating Ball Valve?

A floating ball valve, on the other hand, relies on the pressure of the fluid to push the ball against the seat, ensuring a tight seal. Key benefits include:

• Lightweight: The construction is generally lighter than trunnion valves, making them easier to install and move.
• Cost-Effective: Generally less expensive due to their simpler design and manufacturing process.
• Versatility: Commonly used in smaller pipelines and systems with lower pressure requirements.

Comparison of Key Features

When to Choose Each Type?

Choosing between a trunnion and a floating ball valve depends on several factors:

High-Pressure Systems

If you are dealing with high-pressure systems, trunnion ball valves are the preferred choice due to their stability and low torque requirements.

Lower Pressure Applications

For lower pressure or smaller-scale operations, floating ball valves are typically sufficient and more cost-effective.

Installation and Maintenance

Consider the installation environment and maintenance costs. The lightweight nature of floating ball valves can simplify installation, while trunnion valves may require specialized service.

Conclusion

In conclusion, selecting the right valve involves understanding your specific application requirements. Trunnion ball valves excel in high-pressure, large-diameter applications, whereas floating ball valves offer efficiency and cost savings for smaller systems. Evaluating these factors will help ensure you make the best choice for your needs.

For further insights and to stay updated on valve technologies, don’t hesitate to share this article and connect with industry professionals. Understanding the nuances between valve types can lead to better operational efficiency and reliability in your systems.

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