These magnetic drive pumps are designed to circulate mildly corrosive acids, alkalis, solvents, brines, plating solutions, sterile solutions, and other mildly corrosive chemicals and solutions that are compatible with the pump's material of construction. The design isolates the pump mechanism from the motor with a solid wall. Liquid surrounds the pump, which has no physical connection to the motor. Magnets on both sides of the wall transmit rotary power from the motor side to the pump.