Metal Lined 
Rubber Lined The type of AH pumps are using for handing strong abrasive, high density slurries and low density, high head slurries in the mining,metallurgical,coal,power, building material and other industrial departments etc.
For example: Coal washery processing, handling with the fine ore and tailings in metal mine, handing combined bottom and fly ash in a thermal power station.
The AH series have replaceable wear-resistant metal or rubber liners.
Bearing assembly use cylindrical structure, adjusting the space between impeller and front liner easily, being removed completely when being repaired. Bearing assembly use grease lubrication.
Metal Lined 
Rubber Lined The type of SP(R) pumps are using for handing strong abrasive, high density slurries and low density, high head slurries in the mining,metallurgical,coal,power, building material and other industrial departments etc.
For example: Coal washery processing, handling with the fine ore and tailings in metal mine, handing combined bottom and fly ash in a thermal power station.
The SP(R) series pumps are vertical, centrifugal slurry pumps submerged in sump during operation. They are designed for delivering highly abrasive, large particles and high density slurries. These pumps have no need of any shaft seal and sealing water. The pump casing of type SP pumps are made of wear-resistant metal. The wear parts are made of high chromium for the SP series and are rubber lined for the SPR series.
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