Pumping abrasive liquids are always a difficult application. The hardness and percentage of solids increase the wear in the pump and piping. Pump speed and pressure directly affect pump wear. Pump speed can be addressed by oversizing the pump to reduce the RPM of the pumping elements. This lessens the abrasion effect and the NPSH required to prevent cavitation. The suction side of the pump should be oversized to ensure a positive flow to the pump. Oversized strainers also reduce suction side pressure drop and protect the pump from foreign objects.
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