Float and Thermostatic Steam Traps (F & T traps)

Float and Thermostatic Steam Traps (F & T traps)

Yarway F&T steam traps are well suited for process applications due to their wide rangeability.

What are Float and Thermostatic Steam Traps (F & T traps)?

Float and Thermostatic steam traps are included in the mechanical trap category, operating off the density difference between steam and condensate. These F&T traps are actuated by a ball floating on the condensate. As the condensate level rises, the float opens the valve, removing condensate. Although it is one of the oldest types of steam traps on the market, the float trap is still in widespread use.

F & T traps are energy efficient, continually discharging condensate close to the saturation curve, and can operate with high backpressure. Float traps respond very well to changing condensate loads and pressure swings and the built-in thermostatic element removes air efficiently, making F&T steam traps the number one choice for process applications.

When selecting a trap for a process application, one common limitation to consider is floats can be damaged by freezing during shutdowns. For drip applications, alternative technologies are preferred whose predominant failure mode is in the open position, preventing water hammer damage in distribution equipment. Similarly for tracing applications, alternative technologies are preferred whose predominant failure mode is in the open position, ensuring the heated equipment stays warm.

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FAQs

How does an F & T trap work?
How do I verify a float and thermostatic steam trap is operating correctly?
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