Steam has two components:
Thermodynamic Steam Traps latent heat useful in process for Heat transfer, and the Sensible heat in the form of condensate having only the heat content not useful in process, rather hindering Heat transfer and causing damage to piping equipment due to its presence. Hence, there is need to remove condensate and trapped steam. This is done by Steam trap.
The Thermodynamic Trap works on the principle of difference in the velocities of Steam and Condensate. Used Mainly on Drip lines of the main stream distribution line, uses condensate pressure to open the trap and discharge the condensate and then the Flash steam formed due to the high flash steam velocity & accumulation of flash steam over disc, Device close and trap the live steam when it appears.
Thermodynamic Steam Trap is compact and lightweight and discharge condensate as and when it is formed.