Which of the following statements is correct concerning the operation of the level or drain regulator associated with the feed water heater shown in the illustration is correct? SG-0025

Correct Answer: Option C — The regulator controls the level of condensate collected in the drain cooler section.

Automatic level control valves on feed water heater drain coolers regulate the rate of condensate discharge. This maintains a precise liquid seal, preventing steam blow-through while ensuring the drain cooler section is fully flooded for optimum subcooling.