Air operated double diaphram Pump and Piston Pump for Paint, Ink, Grease, Oil and Adhesive applica

AODD pumps are essentially leak-free. There are only stationary seals between the wetted parts and the outside environment so leakage can only occur if one or both diaphragms fail. As part of a general maintenance programme, diaphragms should be replaced regularly, according to the manufacturers recommendations. Diaphragms suffer less wear in an AODD pump than those in a mechanically driven diaphragm pump