How does a steam trap function?

A steam trap functions by allowing condensate to escape from the steam system while effectively preventing steam from escaping. This is critical for maintaining the efficiency of steam heating systems. When steam is introduced into a system, it condenses into water (condensate) as it releases heat. The steam trap collects this condensate and permits it to flow out of the system.

At the same time, the trap has a mechanism—such as a float or a thermodynamic element—that senses the difference in pressure between the steam and the condensate. When the pressure of the steam is detected, the trap closes to keep the steam in the system, thus preventing loss of heat and pressure. This ability to separate steam from condensate without manual intervention is what makes the steam trap an essential component in promoting efficiency and preventing potential issues with steam heating systems.

In contrast, other options do not accurately describe the function of a steam trap. The technology is focused specifically on maintaining the integrity of the steam system by managing the phases of water and steam effectively.