A diaphragm pump is a positive displacement pump that uses a diaphragm (a flexible, membrane-like component) to move fluids. The diaphragm alternates between two chambers, creating a suction and discharge cycle. It is ideal for pumping viscous, corrosive, and abrasive liquids, slurries, and chemicals, offering benefits like leak-proof operation, self-priming, and the ability to handle toxic fluids without contamination. Diaphragm pumps are commonly used in industries such as chemical processing, water treatment, and oil and gas.