In our industry, most understand that pre-flushing circulating systems typically takes weeks, or even months, to clean effectively prior to engaging in startup events. This process can cause plugging of suction strainers every few minutes, causing major startup delays.
When looking at utilizing the system pumps for pre-cleaning, it’s easy to understand why the velocities would be so low– typically 3 to 7 ft./sec. The system pumps are designed for moving volume, not for high velocities. This results in inadequate velocities for moving large debris quickly, which results in the pre-cleaning process taking months of circulation.
To continue reading on how B&W has overcome these old technologies, check out our latest white paper!