15.Distinguishing between Flash Steam and Steam Leaks

20/09/2023

Is it Flash Steam or a Steam Leak? Flash steam is typically generated from the condensate discharged by a steam trap, but this should not be confused with a leak. Leaks, on the other hand, generally occur when a steam trap malfunctions. The result is the discharge of live steam. In both cases, steam discharge can be observed at the trap outlet. The difficulty for site personnel or operators lies in how to determine whether a steam trap is leaking purely based on observation of the steam discharge from the trap. There are no easy answers, as the steam in both patterns looks very similar. The first consideration might be whether the amount of steam discharge tells us anything. Unfortunately, the amount alone is not enough to paint the whole picture. The appearance of flash steam can vary considerably based on the type of steam trap, the condensate load, and the operating steam pressure. See the videos below showcasing steam traps in operation to see the difference.