Double diaphragm pump 1/2'', metal, ex protection, aluminium/NBR, 73 l/min, 8 bar. Supplied = assembled. Connection type = 1/2 inch. Pump rate = 73 l/min. Operating pressure min./max. = 8 bar. Material of membrane = NBR. Seal material = NBR. For pumping solid particles with max. diameter = 3.2 mm. Pumping temperature = 100 C. For media = chemicals, acids and alkalis, solvents, paints. Material of pump = aluminium. Pumping height = 80 m wc. Max. viscosity at +20 C = 7500 mPas. Dry suction height = 4.5 m. Feature = explosion protected. Explosion protected in accordance with the ATEX directive (ex protection) Self-priming (even when dry) Maintenance-optimized design and easy installation. The double diaphragm pump is suitable for industrial applications as well as for emptying drums, IBC containers and tanks Explanation of materials: EPDM = ethylene propylene diene rubber FPM = fluorine rubber NBR = acrylonitrile butadiene rubber PP = polypropylene PTFE = polytetrafluoroethylene TPC-ET =