STEAM TRAPS:
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Steam Traps are automatic valves designed to remove condensate from steam lines, but
prevent steam loss by “trapping” the steam; hence the name, “Steam Trap”. Air is usually
present for some period of time in a steam line, either during start-up and/or operation. So,
depending on the application, air is another fluid that usually requires removal from a steam line.
Therefore, in order to operate properly, steam traps should be able to sense certain differences
between condensate, steam, and air. Based on current designs, there are three basic operating
principles of steam traps, which are explained below:
Thermostatic, Density, and Thermodynamic.
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Steam Traps – Operating Principles and Types