Which type of pump is typically used for boiler feedwater?

A centrifugal pump is typically used for boiler feedwater due to its ability to efficiently move large volumes of water at elevated pressures, which are necessary for boiler operations. These pumps work by converting rotational energy from a motor into energy in the fluid, allowing them to continuously push water through the system. This characteristic makes them ideal for applications where a steady flow is required, such as feeding water into a boiler where it must maintain a specific pressure to counteract the steam pressure within the system.

Centrifugal pumps also have a relatively simple design which contributes to their reliability and ease of maintenance. The capability to handle varying flow rates and adapt to changing conditions in the feedwater system further underlines their suitability for this application. In boiler operations, consistent feedwater supply is critical for maintaining efficiency and preventing issues such as boiler fouling or hydraulic instability, both of which are well managed by centrifugal pumps.