What is the main function of a Condensate Pump in a boiler system?

The main function of a condensate pump in a boiler system is to return condensate back to the feedwater tank. When steam is generated in the boiler and used for heating or other processes, it eventually condenses back into water. This condensate must be collected and returned to the feedwater system to ensure efficient water usage and to preserve energy. By pumping the cooled water back to the feedwater tank, the system can reuse this water, minimizing waste and reducing the need for additional make-up water.

This process also plays a crucial role in maintaining system pressure and efficiency, as it allows for the recovery of thermal energy contained in the condensate. Without this pump, condensate could accumulate and lead to inefficiencies or operational issues within the boiler system. The other options do not accurately describe the core role of a condensate pump, as it specifically focuses on handling and returning condensate rather than regulating steam pressure, increasing water temperature, or removing impurities from the water.