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Difference between Trunnion and Floating Ball Valve Balls

Ball Valve Balls

Ball valve balls are widely used in ball valves in industrial and commercial applications to regulate the flow of liquids and gases. There are two main types of ball valves: trunnion ball valve balls and floating ball valve balls. While both types serve the same purpose, there are important differences between the two that must be understood to ensure that the correct type of valve is selected for a particular application.

What is a Trunnion Ball Valve Ball?

A trunnion ball valve ball is a type of ball valve ball that has a shaft or “trunnion” at both ends that supports the ball within the valve body. This design provides additional stability to the ball, which helps to reduce the risk of deformation or other problems that could compromise the performance of the valve. The trunnion also helps to distribute the pressure evenly across the ball, ensuring that it seals properly and prevents leaks.

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What is a Floating Ball Valve Ball?

A floating ball valve ball, on the other hand, is a type of ball valve ball that is supported by the fluid pressure within the valve. In this design, the ball is not attached to any shaft or trunnion but instead floats within the valve body, being held in place by the pressure of the fluid. This design allows for a greater degree of flexibility and adaptability in the valve, as the ball is free to move as the pressure within the valve changes.

Key Differences between Trunnion and Floating Ball Valve Ball

  1. Design: The main difference between a trunnion and a floating ball valve ball is their design. Trunnion ball valves have a shaft or “trunnion” at both ends that support the ball while floating ball valves have a ball that is supported by the fluid pressure within the valve.
  2. Stability: Trunnion ball valve balls are more stable than floating ball valve balls, as the trunnion provides additional support to the ball and helps to distribute the pressure evenly. This can be particularly important in applications where high pressure or temperature are involved.
  3. Pressure: Floating ball valve balls are more adaptable to changes in pressure, as the ball is free to move as the pressure within the valve changes. Trunnion ball valves, on the other hand, are more suited to applications where the pressure is relatively constant.
  4. Maintenance: Trunnion ball valves may require more maintenance than floating ball valves, as the additional parts and components involved in their design can be more prone to wear and tear over time.

Choosing the Right Valve ball for Your Application

When choosing between trunnion and floating ball valve balls, it is important to consider the specific requirements of your application, including the type of fluid or gas being handled, the pressure and temperature involved, and the level of stability and adaptability required. In general, trunnion ball valves are more suited to applications where high pressure or temperature are involved while floating ball valves are more adaptable to changes in pressure and are often used in applications where the pressure is relatively constant.

Conclusion

In conclusion, trunnion and floating ball valve balls are two important types of ball valve balls that have distinct differences in their design, stability, pressure, and maintenance requirements. Understanding these differences is essential in choosing the right valve for your application, ensuring that you get the best performance and longevity from your investment.

Where can I buy ball valve balls?

Brijesh Engineering serves you different types of balls for valve industries.

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