What is the purpose of a steam trap in steam systems?

The purpose of a steam trap is primarily to remove condensate and non-condensable gases from the steam system while preventing the loss of live steam. This is vital because, in a steam system, as steam travels through pipes and equipment, it can lose heat and condense into water (condensate). If this condensate is not effectively removed, it can lead to issues such as water hammer, reduced efficiency, and potential damage to equipment.

Additionally, non-condensable gases such as air can also accumulate in the system, leading to reduced heat transfer efficiency and corrosion of the system components. The steam trap is designed to allow these substances to exit the system while keeping the steam contained, thus ensuring that the efficiency and operational integrity of the steam system are maintained.

The other options describe functions that are not specific to what a steam trap accomplishes. For example, increasing steam pressure or regulating steam temperature involves different types of equipment like pressure regulators or temperature control devices, while converting steam into water is more about steam condensation processes rather than the specific function of steam traps.