Flow rate (at atm. pressure)





mbar abs.



bar g

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Robust and Durable

Equipped with the patented stress-optimized structured diaphragm, KNF N 87 TT.9E is a gas sampling pump featuring high pneumatic performance and long-term durability. Moreover, its special valves further ensure minimum resistance to flow.

Modulartiy in Design

Thanks to KNF Modular System, the parts used to transfer the gases can be made of materials with varying degrees of durability.

Ex-proof Models

The pumps can be operated by either standard AC or ex-proof motors with various options on voltages and frequencies. Also see N 87 TT.9E Ex for models with ATEX/IECEx compliance.

Contact us to learn more about customization options.

    • Minimized pneumatic loss
    • High resistance to chemicals
    • Maintenance free
    • Can operate in any installed position
    • Uncontaminated flow due to oil-free operation
    • Compact size
    • High pneumatic performance
    • High level of gas tightness
    • Long product life
    • Ready for assembly
  • Flow rate l/min at atm. pressure7.5
    Ultimate vacuum mbar abs.140
    Operating pressure bar g1.5
    Permissible gas and ambient temperature °C+5° to +40°C
    Permissible ambient temperature °C+5° to +40°C
    Voltage V230 V
    Frequencies Hz50 Hz
    Motor protectionIP 54
    Power P1 W60 W
    Weight kg3.1 kg
    • Pump head: PVDF
    • Diaphragm: CR, PTFE-coated
    • Valves: FFPM
  • Title Order No.
    Inserted screw connection D 6PVDF, G 1/8014049
    Hose connector for tube ID 6PVDF, G 1/8123363

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