Before diving into differences, it's essential to understand what trunnion and floating ball valves are. A trunnion ball valve has a fixed ball held in place by top and bottom trunnions, allowing for a more stable performance under high pressure. In contrast, a floating ball valve features a ball that is simply held in place by the compression of the seat, allowing it to move slightly based on the flow of fluid.
The design of each valve type impacts their functionality. Trunnion ball valves are designed for larger diameters and higher-pressure applications, making them suitable for heavy-duty duties in industries like oil and gas. Floating ball valves, however, are more versatile in terms of size and pressure ratings, making them ideal for lower pressure tasks. Review the specifications of each valve type before making a choice for your application.
Performance varies significantly between the two types. Trunnion ball valves often exhibit better performance at higher pressures, thanks to their fixed-ball design, which minimizes the risk of seat wear. Floating ball valves, on the other hand, are more responsive but may not perform well under extreme conditions. Evaluate the specific needs of your project, such as temperature and pressure, to choose the most suitable valve.
Your application can greatly influence your choice between trunnion and floating ball valves. Trunnion valves are preferred in situations where consistent flow and minimal turbulence are essential, such as in pipeline systems. Floating ball valves work well in applications needing frequent operation, especially in smaller pipelines. Be sure to assess which type fits your application needs better.
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