Used Lab Equipment

Used Lab Equipment

We typically have used and reconditioned pumps in stock from leading manufacturers like Cole-Palmer and Watson/Marlow.

Knf Neuberger Laboport: 1-1 of 1

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KNF Neuberger Laboport UN840.3 FTP Vacuum Pump

KNF Neuberger Laboport UN840.3 FTP Vacuum Pump

Cambridge Scientific ID #'s: 20635, 20634


The KNF LABOPORT N840.3FTP two-stage diaphragm vacuum pump is suitable for use with concentrators, rotary evaporators, and distillation equipment (sold separately). The pump has a 34 liters per minute (LPM) free air capacity with vacuum to 8 Torr and its polytetrafluoroethylene (PTFE) air flow path is corrosion resistant. The oil-free diaphragm pump allows operation without oil misting and contaminated oil disposal. The pump accepts 115V, 60 Hz input power.

KNF Neuberger, a division of KNF Group, manufactures diaphragm pumps and systems for gases, vapors, and liquids for laboratory and manufacturing applications. The company, founded in 1977, is headquartered in Trenton, NJ.


  • Flow rate at atm. pressure: 20L/min

  • Ultimate vacuum: 8 mbar

  • Operating pressure: 14.5 psig

  • Connectors for tube: 3/8 in

  • Permissible media and ambient temperature: +5 … +40 °C

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