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After delving into the main components of diaphragm pumps, it is possible to analyze their operation. As mentioned earlier, the entire operating cycle of an AODD pump is based on the use of compressed air as the driving fluid. AODD pumps use two flexible membranes mounted on a shared shaft that repeatedly moves back and forth to pump fluids in and out of the pump’s fluid chamber. This movement creates a vacuum, which allows fluid to enter through a suction port.