With time and use, it is possible that the mechanical seal of any pump will eventually suffer some kind of damage. Such problems are usually easy to spot, as the liquid will start to leak out where it shouldn’t be.
If there is an issue, then action is needed. In this video, you can see how to disassemble and assemble the mechanical seal of the FL30CI and FL50CI pumps, some of the most successful models in our extensive catalogue of industrial pumps. The process of changing the mechanical seal of a centrifugal pump is basic, and the instructions we give you in the video will be very useful, whether we need to repair this element or replace it with a new one.
In this way, once the impeller is removed, the seal used can be accessed so that it can be removed from the assembly. If the spring is completely broken, or the parts are damaged, it may have to be replaced. If not, one way to repair it is to clean all surfaces, including the shaft. This can be done with fine sandpaper.
Whether we can use the old seal or replace it with a new one, we will have to apply lubricating grease. In this way, we will be able to insert it into the correct position without using excessive force. Once everything is in place, place the appropriate retainers and finish assembling the pump.