

You replaced the mechanical seal on Friday. By Monday it's leaking again. Back at the shop they ask whether you checked the shaft sleeve, runout, bearings, and flush before installing the new seal. If you didn't, the new seal simply repeated the failure.
In this field guide we cover how to replace a mechanical seal on a centrifugal pump: what to check before touching a single bolt, how to inspect so the leak doesn't come back, which mistakes can cause a new seal to fail in hours, and how to perform...