Flow rate (at atm. pressure)

Up to




Down to


mbar abs.


Up to


bar g

KNF OEM Pump N 850.1.2 HP
High-Performance, Double-Headed Gas Pump

KNF NMP 850.1.2 HP is the double-headed version of the series, boasting an impressive ≥ 50% increase, 16 l/min in the maximum flow rate, an ultimate vacuum down to 220 mbar abs., and a pressure of up to 2.2 bar g. 

Excellent size-performance ratio, high condensate resistance, low sound level, long service life, and dry-run safe make the NMP 850.1.2 HP a perfect choice for applications such as:

  • Wound and medical compression therapy
  • Respiratory care devices
  • Semiconductor equipment
  • Environmental monitors
  • Reprographic equipment
  • Food and beverage equipment
Modularly Customizable

The NMP 850.1.2 HP features a digitally adjustable BLDC motor with both 2- and 4-wire versions. A wide range of diaphragm/valve material options, along with FDA-certified wetted components are all available. Please contact us to discuss your application requirements.

For the single-headed version, refer to NMP 850 HP.

  • Flow rate l/min at atm. pressure16
    Ultimate vacuum mbar abs.220
    Operating pressure bar g2.2
    Permissible gas and ambient temperature °C+5° to +40°C (extended temperature on request)
    • Pump head: PPS
    • Diaphragm: EPDM/PTFE/FKM
    • Valves: EPDM/FKM/FFKM

Related Products

More products available on the category page:

Micro Diaphragm Gas Pumps


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