Methods for selecting motor speed and pump material
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For ordinary centrifugal alkali pumps, when the solid particle content is 5 g/L, what rotation speed should the pump have – 2900 revolutions per minute or 1450 revolutions per minute? And within what range of alkalinity levels should one choose a certain material for the flow-through components, 304 or 316? I hope the experts can give some advice!
If it’s alkali, you can choose a fluorine pump or a polymer pump. To decide whether to choose a 2-stage or 4-stage motor, you can consider your specific requirements regarding flow rate and head.
If it is an alkaline solution, a fluoroplastic centrifugal pump can be used. Stainless steel pumps are not recommended, as alkalis can still cause corrosion to metals
I don’t know the parameters such as the temperature and concentration of the alkaline solution, nor whether it contains chloride ions In situations with high temperatures and high concentrations, 316L and 310S can be chosen as suitable materials; for specific details, you can consult one or two manufacturers