steam trap is a reverse filter, mean filter the steam and allow the water

Some that catches like a mouse trap and skeet trap or steam trap

The purpose of a steam trap is discharging noncondensable and condensable gases. They are essentially automatic valves that discharge using a small amount of live steam.

The purpose of a steam trap is to stop steam from passing beyond its point of use. A steam trap performs two functions. One is that it is an air vent. Two, is that it is a water outlet valve.

Steam Room Trap, Caurosel Trap, Oxygen Trap, Acid Trap and Barbed Wire Noose Trap.