Working Principle of Miniature Diaphragm Pumps

Keyto's miniature diaphragm pumps, also known as mini wash pumps, diaphragm mini pumps, micro suction pumps, mini diaphragm pump, membrane pumps, and diaphragm pumps for liquid and gas, operate through a micro DC motor-driven diaphragm mechanism. The motor, either brushed or brushless, drives the diaphragm using an eccentric wheel, creating a reciprocating motion. As the diaphragm moves, it alters the volume within the pump chamber, allowing air or liquid to be drawn in through an inlet valve and expelled through an outlet valve. These one-way valves ensure proper flow direction and efficient fluid transfer. The oil-free design guarantees clean, contamination-free operation, and the pump’s compact size makes it ideal for integration into small systems.