A large percentage of plastic inside of the water caused many grinder pumps to fail.
Tsurumi C series (the problem solver) is one the most fail safe products in the market. 80C21.5 that proved to handle the material without any issue. Standard sewage pumps had problems dealing with these plastic materials since they tend to stick to each other and form big clumps, but this was not a problem for Tsurumi cutter pumps. 4 pumps were installed in collections tanks that were pumping the material to vibration sifters that were separating the solids from water and 4 more pumps in the reservoirs after sifter to pump the water back into the recycling machine. All 8 pumps are controlled via VFD and level sensors that keep the water at the same level in all reservoirs no matter the changes in inflow of water. By keeping the water level low the pumps are able to collect more of the solids that are lightweight and tend to flow on top of the surface.
In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear can take place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the working conditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.
In this regard, please pay attention to our general terms and conditions that we also send to you by mail on request.