The N 820 G and N 840 G basic pumps feature a control knob for manual adjustments of the flow rate, making them well suited to a wide variety of applications. This has integrated rotational speed control, the pumps are quiet, very energy efficient, and can be optimally adjusted in accordance with the application.

• Flow rate of up to 2,04 m³/h
• Ultimate vacuum of 6 mbar abs
• Combination of TFM™ PTFE pump head and PTFE coated diaphragm makes these pumps ideal for working with extremely aggressive/corrosive gases and vapours
• High level of compatibility with vapour and condensation
• Integrated gas ballast valve
• Three colour status display: In operation / Stand-by / Error
• Expandable: Separators and/or condensers can be purchased and easily fitted
• ATEX-compliant in accordance with II 2/-G IIB+H2 T3 internal atmosphere only
• 100% oil-free transfer to ensure uncontaminated transfer, evacuation and compression
• Equipped with an easy to clean surface

Potential applications include rotary evaporation, distillation, gel drying, degassing, use in vacuum ovens and vacuum concentrators.

Pump head material: TFM™ PTFE
Diaphragm material: PTFE coated
Valve material: FFPM