AODD pumps are air (or natural gas) operated displacement type pumps which uniquely differ from all other positive displacement pumps. As a result of air pressure acting on the entire surface of the diaphragm, the diaphragm is in a balanced condition while pumping. AODD pumps are appropriately selected for on-demand intermittent requirements.

• heavily and pourable fluids efficiently handled
• no mechanical seals or packing to leak
• simply regulate the inlet air supply to adjust the pump flow from zero to maximum rated capacity – self priming