The Verderair CONT EX air operated diaphragm pump is made of conductive polyethylene, standard ATEX certified and available in 4 sizes. Depending on the application, there is this air operated diaphragm pumps with ball valves (suitable for solids) or cylinder valves (higher suction lift).
Double Diaphragm Pumps
The Verderair diaphragm pumps are the best solution for applications that require more than just transporting liquids. Also very sticky and viscous liquids, or liquids containing solids can be handled without problems. The quick acting air valve technology is making the VA, VA PURE and the VA HI-CLEAN the most efficient diaphragm pump series on the market.