Graco's Chemsafe Series

Graco’s ChemSafe Series comprises premium quality AODD pumps that use PTFE or UHMWPE corrosion-resistant fluid paths. The material choice of Graco for this series made the pumps ideal for handling strong corrosive and abrasive chemicals. There are no exposed metals and they can be configured in various materials to meet most abrasion, temperature, and chemical compatibility requirements. Furthermore, they’re dead-head capable and achieve high flow rates while minimizing air consumption and operational noise.

Graco Air operated double diaphragm (AODD) pumps use compressed air as a power source. The compressed air is shifted from one chamber and then to the other side by a linked shaft. This movement allows the chambers to move simultaneously. This back-and-forth motion forces liquid out of one chamber and into the discharge piping while the other chamber is being filled with liquid at the same time. These pumps use reciprocating elastomeric diaphragms and check valves to pump fluid. The liquid chambers are filled and emptied by fluid that is drawn through a common inlet and discharged through a single outlet.