Which component is responsible for maintaining proper pressure in the feedwater system?

The component responsible for maintaining proper pressure in the feedwater system is the feedwater pump. The feedwater pump is essential as it controls the flow and pressure of water being fed into the boiler. This pump ensures that an adequate volume of water is supplied to the boiler at the appropriate pressure, avoiding issues like insufficient water levels or pressure that could lead to operational inefficiencies or even damage to the boiler system.

While other components like the pressure gauge provide important readings to monitor pressure levels, and the safety valve protects the system from excess pressure by releasing water when necessary, they do not actively maintain the pressure within the feedwater system. The feedwater tank vent serves to relieve excess pressure, but it does not contribute to maintaining or managing the feedwater pressure. Thus, the feedwater pump is the crucial component in this context for maintaining the proper pressure needed for efficient boiler operation.