Flow rate (at atm. pressure)

Up to




Down to


mbar abs.


Up to


bar g

KNF N 630.15 Ex
ATEX-Compliant, Two-Headed Compressor with Serial Connections

KNF N 630.15 Ex is the two-headed ex-proof compressor with serial connections in the N 630 product family. The compressor copes with corrosive and aggressive media while featuring high-level gas tightness ( up to 6 x 10 -3 mbar x l/s as a standard), high chemical resistance, along with ATEX compliance. 

The N 630.15 Ex offers a flow rate of up to 35 l/min, an ultimate vacuum of down to 70 mbar abs., and a pressure of up to 9 bar g. The flameproof motor comes with an intrinsically-safe terminal box, making the installation easier.

Possible Areas of Use
  • Environmental monitoring
  • Energy industry
  • Process industry
  • Chemical industry
  • Maritime engine monitoring and emission measurement

For custom-fit solutions, accessories, and spare parts, please contact us.

  • Flow rate l/min at atm. pressure35
    Ultimate vacuum mbar abs.70
    Operating pressure bar g9
    Permissible media temperature °C+5° to +40°C
    Permissible ambient temperature °C+5° to +40°C
    Explosion protection - three-phase motor Ex II 2G Ex de IIC T4 Gb
    Explosion protection - pump parts Ex II 2G Ex h IIB+H2 T3 Gb
    Protection class - motor IP 55
    Protection class - pump IP 20
    • Pump head: stainless steel
    • Diaphragm: PTFE-coated
    • Valves: stainless steel

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ATEX-Compliant Diaphragm Gas Pumps

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