What material is generally chosen for submersible sewage pumps?
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What material is generally used for submersible pumps handling ordinary wastewater (with low corrosivity)? Can ordinary carbon steel be used?
Submersible pumps for general wastewater (with low corrosivity) are usually made of cast iron or stainless steel. Plain carbon steel has poor corrosion resistance, and its direct use is not recommended. If the wastewater is not significantly corrosive, cast iron material can be considered ； If there is some corrosivity, it is recommended to use 304 stainless steel to ensure the pump’s service life and reliability. .
It is necessary to check for corrosivity in order to determine the appropriate material; for ordinary domestic wastewater, cast iron is sufficient, while for chemical wastewater, the choice depends on the composition of the wastewater