Flow rate (at atm. pressure)

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Down to


mbar abs.


Up to


bar g

KNF N 1400 Series
Robust and Durable

Designed to endure demanding working conditions, KNF N 1400 is a series of process vacuum pumps and compressors providing superior performance and a high level of gas tightness of up to 6 x 10-6 mbar l/s.

High-Performance and Custom-Fit

With a flow rate of up to 250 l/min, an ultimate vacuum of up to 150 mbar abs., and a pressure of up to 6 bar g, the N 1400 offers a robust design with various customization options, making it ideal for use in energy, chemical and process industries as well as research and development.

Two-Fold Safety

Furthermore, double diaphragm models are also available for applications requiring exceptional safety. By adding an extra membrane into the pump structure, these models can help minimize the risk of gas leakage in the event of a fracture.

  • Flow rate l/min at atm. pressure250
    Ultimate vacuum mbar abs.150
    Operating pressure bar g6
    Permissible media temperature °C+5° to +40°C
    Permissible ambient temperature °C+5° to +40°C
    • Pump head: stainless steel
    • Diaphragm: EPDM/PTFE-coated
    • Valves: stainless steel

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Process Vacuum Pumps and Compressors

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