Which type of pump can be an alternative in controlled circulation boilers aside from centrifugal pumps?

The glandless type of pump is an effective alternative in controlled circulation boilers primarily due to its design and operational characteristics. These pumps are designed to operate without traditional packing, which eliminates the risk of leakage and reduces maintenance needs. The glandless design allows for a more compact unit that is conducive to the requirements of controlled circulation, where steady and reliable flow rates are essential for maintaining optimal boiler efficiency.

In controlled circulation systems, maintaining the proper flow of water through the boiler is critical for effective heat transfer and steam generation. Glandless pumps, often designed to handle the specific characteristics of water and steam mixtures, can provide the necessary reliability and efficiency for such systems.

Additionally, glandless pumps can handle varying pressures and flow rates without compromising performance, making them suitable for the dynamic conditions often found in boiler operations. Their ability to operate with good efficiency at different flow rates allows for better control over the heating process within the boiler.

The absence of packing in glandless pumps also minimizes the risk of wear and tear that can occur in traditional pumps over time, further enhancing their operational longevity and effectiveness in demanding boiler environments.