What controls a thermostatic steam trap?

A thermostatic steam trap operates based on the temperature difference between condensate and steam, making the option that emphasizes this principle the correct choice.

The functioning of a thermostatic steam trap relies on the fact that steam is significantly hotter than condensate. This temperature difference causes the trap to sense when the steam is present and at what temperature, allowing it to control the release of condensate. When the condensate cools down, it results in a change in temperature that the thermostatic element reacts to.

In systems utilizing steam traps, it is essential for the trap to efficiently separate steam from condensate because steam needs to remain in the system to provide heat, while condensate must be removed to prevent water hammer and ensure optimal equipment performance. This principle ensures the efficient management of the thermal dynamics within steam systems, which is the primary reason that temperature difference governs the operation of a thermostatic steam trap.