The Benefits of Understanding the Difference Between Trunnion and Floating Ball Valves

Trunnion ball valves are equipped with a fixed shaft that holds the ball in place on two ends. This structure allows for better support and is ideal for applications with high pressure and large diameters. The trunnion design provides stability and reduces wear on the sealing surfaces, making it suitable for systems requiring tight shut-off capabilities.

Floating ball valves feature a ball that is not fixed but "floats" between two seats. The ball's position is determined by the pressure of the fluid, which pushes it against the seat, creating a seal. This design is typically used for lower pressure applications and is simpler and more cost-effective compared to trunnion valves.

The key differences lie in their design and application:

• Design: Trunnion valves have a fixed ball supported at both ends, while floating valves have a ball that moves slightly to create a seal.
• Pressure Ratings: Trunnion valves can handle higher pressure and larger sizes, making them suitable for heavy-duty applications.
• Cost: Floating valves are generally more affordable and easier to maintain, which makes them preferred for smaller operations.

Understanding the differences helps in selecting the right valve for specific applications. Using the correct valve can prevent leaks, reduce maintenance costs, and improve overall system efficiency. It ensures the system operates safely and complies with industry standards.

Trunnion ball valves are ideal for high-pressure situations, large pipelines, or critical applications where reliability is crucial. Industries such as oil and gas, petrochemical, and power generation often utilize these valves due to their ability to handle demanding operational conditions.

Floating ball valves are best suited for low to medium pressure applications. They are commonly used in water treatment, heating systems, and HVAC applications. Their simplicity and cost-effectiveness make them a popular choice for less demanding environments.

Both types of valves require routine inspections to check for wear and tear. Trunnion valves may need more frequent checks due to their complexity and Pressure conditions. Floating ball valves, while simpler, should also be inspected for proper sealing and fluid leaks. Correct and timely maintenance can extend the lifespan of the valves.