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http://http://www.sunbopump.com/Metal-Parts/Slurry-Pump-Metal-Expeller-141.html

Metal Expeller Ring - EAM029 is interchangeable with the original slurry pumps expeller rings. It works together with the expeller, providing the sealing of the pump. As the Expeller Ring is a fast wearing spare part, its design and material is essential for the service life of the pump. ¡ø Expeller Seal is an impeller force of revers ...

http://http://www.sunbopump.com/Metal-Parts/Expeller-Ring-Metal-Wear-Parts-High-chrome-Expeller-Ring-Stuffing-Box-270.html

The Expeller EAM028 is a dynamic component in the slurry pumps with centrifugal seal, which has vanes to reduce the pressure on the shaft. The principle of the expeller seal is that the total pressure produced by the expeller vanes is greater than the pressure generated by the main impeller vanes plus the inlet pressure.       & ...

http://http://www.sunbopump.com/Metal-Parts/Slurry-Pump-Expeller-DAM028-EAM028-Expelelr-Ring-DAM029-EAM029-273.html