diaphragm pump (also known as the plunger pump) is a volumetric pump that transports liquids by reciprocating deformation of the diaphragm to alter the working chamber's volume. It falls under the category of actuators and is primarily used in fields such as chemical processing, ceramics, and sewage treatment. Its core structure consists of a transmission section and a diaphragm cylinder head, utilizing hydraulic, pneumatic, or electric drives for medium suction and discharge. The working medium is completely isolated from the transmission components, and the diaphragm is often made of corrosion-resistant materials like fluororubber or PTFE