Which of the following is not considered part of the valve trim?

In the context of valve components, the valve trim consists of the parts that come into contact with the process fluid and control the flow. This typically includes components such as the seat, closure elements (like a disk or a plug), and sometimes the stem and packing, which directly affect the regulation of fluid flow.

The body of the valve, on the other hand, serves as the primary frame or housing that contains all the internal components. It is not classified as part of the valve trim because it does not interact directly with the flow of the fluid. Instead, it provides structural integrity and support for all other components. On the other hand, the bonnet encloses the valve’s upper portion and houses the stem packing, while the actuator is involved in the mechanism used to operate the valve but does not come into contact with the flowing fluid.

Understanding these distinctions helps clarify the role of each component in valve design and functionality, particularly when it comes to maintaining and troubleshooting valves in various engineering applications.