Description of the role of steam traps in condensate systems

The condensate recovery system is generally divided into a gravity condensate recovery system, a back pressure condensate recovery system, and a pressure condensate recovery system. System identification and technical requirements for steam trap selection, installation, operation management, etc. So what is the main job of the steam trap in the condensate recovery system?
In the condensate recovery system, if the condensed water is recovered by the working back pressure, a steam trap with a high back pressure ratio should be selected; when the condensed water is not required to be accumulated in the steam equipment, the continuous condensed water should be continuously discharged. Steam trap; in the condensate recovery system, when the steam equipment requires both discharge of saturated condensate and the timely elimination of non-condensable gas, a steam trap capable of discharging saturated water and a drain device in parallel with the exhaust device or A steam trap with both drainage and exhaust functions is used; when the working pressure of the steam equipment fluctuates frequently, a steam trap that does not require adjustment of the working pressure should be selected.