In industry, chemical pumps are used to pump highly potent and toxic working agents. They are made resistant to the aggressive effects of liquids: acids, alkalis, salts and other inorganic and organic compounds that cause corrosion of materials. To determine and select equipment for chemistry, you can use a table of the resistance of materials to certain chemical compounds of their concentrations and temperatures. The pump must pump caustic and corrosive working agents without significant wear of structural elements. This is an important point in the selection to ensure the durability of the equipment and, most importantly, the stability of the technological process at enterprises.