KNF LABOPORT® N 820 GFlow Rate (max.): 20 l min Ultimate Vacuum (max.): 6 mbar (abs.) Adjustable speed control ATEX compliant to (Ex) II 2 G IIB+H2 T3 internal atmosphere only Ideal for extremely aggressive corrosive gases and vapors Clean, 100% oil free operation Chemically resistant, compact and oil free diaphragm vacuum pump with manual speed control for adjusting the pump capacity to your specific application. It features a gas ballast, PTFE TFM heads, PTFE coated
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