Solutions for corrosion resistance of pumps
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What materials can be used for pumps, or what methods can be employed to make pumps more resistant to corrosion, alkalis, and salts? . . . . . . :L
Plastic pumps can be used, or high-quality materials such as duplex steel and super duplex steel can be chosen
Fluoroplastics such as ETFE, PTFE, PFA, and FEP can resist most acids, bases, and salts.
Chemical pumps with a steel lining made of F46 material possess fairly good corrosion resistance. However, when transporting alkaline solutions, attention must be paid to the impact of crystallization on the mechanical seals; it is recommended to use mechanical seals made of pressure-sintered silicon carbide.
Coating can be used for protection, but it is recommended to remove it periodically to check whether the coating on the impeller has begun to peel off
Pneumatic diaphragm pumps made of perfluorinated PVDF or, even better, PTFE can be used, as they can withstand strong acids and strong bases
If the traffic demand is not particularly high, a pneumatic diaphragm pump is a suitable choice
That’s too general; in terms of corrosion-resistant materials, stainless steel, fiberglass reinforced plastic, PP, PVDF, FEP, PTFE, PFA, and so on are all corrosion-resistant, especially fluorine-lined pumps. For alkali resistance, stainless steel is a good choice; if cost is a concern, PVDF or PP can be considered, as fiberglass does not resist alkalis.
F46 pump, with high resistance to acid and alkali concentrations