... ATEX, CSA, UL, CE, USDA, FDA 2.Non-Metallic Materials: Polypropylene, PVDF Pneumatic Diaphragm Pumps are ideally suited ... low abrasive fluids, and suspended solids. Standard duty non-metallic pumps are constructed in Polypropylene, PVDF, Conductive Acetal ... : Aluminum, Cast Iron, Stainless Steel and Alloy CNon-Metallic Materials: Polypropylene, PVDF, Nylon and Conductive AcetalCertifications: ATEX ...