Chemistry diaphragm pump MV 10C EX +AK+EKChemistry diaphragm pump MV 10C EX +AK +EK, four stage, 230 V 50 Hz with ATEX approval: expansion chamber (pumped gases): II 2G Ex h IIC T3 Gb X environment (without inert purge gas): II 3G Ex h IIB T4 Gc X environment (with inert purge gas): II 2G Ex h IIB T4 Gb X motor: II 2G Ex db IIB T4 Gb incl. ON OFF switch, safety protective switch, cable without plug