A steam Trap is a device used to discharge condensate and non-condensable gases with a negligible consumption or loss of live steam. Most steam traps are nothing more than automatic valves.They open, close or modulate automatically. The three important function sof steam traps are:

Discharge Condensate as soon as it is formed (unless it is desirable to use the sensible heat of liquid condensate).

Have a negligible steam consumption.

Have the capacity of discharging air and non-condensable gases.