What is the primary role of a steam trap in a steam system?

The primary role of a steam trap in a steam system is to remove condensate and air from the system. Steam traps are essential components designed to allow condensate, which is water formed when steam cools, to escape while preventing the loss of live steam. This function is crucial because the accumulation of condensate can lead to inefficiency in the steam system and potential damage to equipment.

Additionally, steam traps help eliminate air and non-condensable gases that could hinder the effective operation of steam systems, promoting better thermal efficiency and ensuring that steam is being utilized effectively. Proper functioning of the steam trap ensures that steam flow remains uninterrupted, thereby maximizing the energy transfer processes in heating applications or industrial processes.

Other roles, like releasing excess steam pressure or increasing steam temperature, are not functions of a steam trap, as their operations are focused on maintaining optimal conditions rather than altering pressure or temperature. Similarly, while steam traps can contribute to avoiding conditions conducive to water hammer by removing condensate, their main function remains tied to the removal of condensate and air.