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 diaphragms and FFPM valves. Suitable for a wide range of Laboratory applications including extremely aggressive/corrosive gasses and vapors.\n\nFlow Rate (max.): 20 l/min\nUltimate Vacuum (max.): 6 mbar (abs.)\nAdjustable speed control\nATEX compliant to (Ex) II 2/-G IIB+H2 T3 internal atmosphere only\nIdeal for extremely aggressive/corrosive gases and vapors\nClean, 100% oil-free operation  \n\n[Refurbished] DIAPHRAGM VACUUM PUMP\nLABOPORT® N 820 G