1996 (Granzow) DEPA Sanitary Air Operated Diaphragm Pump. Model: DH40ULUG. S/N: 96304. Nominal capacity: 50 gpm. Material of construction: 316 stainless steel. Sanitary ratings include: FDA, 3A and EHEDG. Teflon and Buna ball valves. Inlets/outlets: (2) 1-1/2 in. dia. ACME fittings. Double-acting, positive displacement pumps operate with two alternating pumping chambers. The compressed air which drives the unit is admitted through a control valve, to the rear of each diaphragm in turn, so displacing the medium from alternate pumping chambers. Since the two diaphragms are connected by a common piston rod, suction always occurs in one chamber while discharge is occurring in the other. Features include: gentle conveyance of liquid or viscous products, tolerance of media with entrained solids or abrasive components, and both dry priming and running. Overall dimensions: 1 ft. 6 in. L x 11 in. W x 2 ft. 3 in. H.(ACN84).