What is the function of a steam trap in a boiler system?

A steam trap plays a crucial role in a boiler system by efficiently managing the condensate that forms when steam cools down. Its primary function is to remove this condensate from steam piping while preventing steam from escaping. This is essential for maintaining the efficiency and pressure of the steam system because trapped condensate can lead to water hammer, reduced heat transfer efficiency, and corrosion.

In this context, the steam trap ensures that only the necessary steam escapes while retaining as much of it as possible within the system for continued use. The ability to remove condensate effectively without losing steam is vital for optimizing the operation of the boiler and maintaining overall system performance.

The other options describe functions that are not suited to the role of a steam trap. Storing excess steam or increasing steam pressure pertains to different components and functions within the boiler system. Monitoring temperature falls under instrumentation, which also is not the primary job of a steam trap. These functions are indeed important in the operation of a boiler, but they are managed by other equipment specifically designed for those tasks.